Pith. sign in

REVIEW 3 major objections 5 minor 1 cited by

Symmetry-Breaking Magneto-Optical Effects in Altermagnets

T0 review · 3 major / 5 minor · reviewed 2026-08-07 · deepseek-v4-flash

Challenge this review Re-run · record.json Download PDF Read on arXiv ↗

Pith's one-line read Uniaxial strain can switch on magneto-optical responses in altermagnets while leaving ordinary antiferromagnets optically silent, giving a simple optical fingerprint for identifying altermagnets.

desk verdict Strain-activated MOKE is a genuinely new and testable idea, but the paper overclaims universality and lacks a strained-AFM control for the absorption channel. read the letter →

arxiv 2505.24124 v1 pith:IIH4AH45 submitted 2025-05-30 cond-mat.mtrl-sci

Jiuyu Sun , Yongping Du , Erjun Kan This is my paper
classification cond-mat.mtrl-sci PACS 78.20.Ls75.50.Ee71.15.Mb
keywords altermagnetismmagneto-opticaleffectsKerrrotationuniaxialstrainsymmetrybreakingantiferromagnetidentificationfirst-principlescalculationsopticalabsorption
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

This paper predicts that uniaxial strain can uniquely reveal altermagnets through ordinary optical measurements. In an altermagnet, the two spin sublattices are connected by a rotation or mirror, and a strain that breaks that operation lifts the spin compensation of the optical response, producing a measurable Kerr rotation and spin-split absorption. The same strain leaves conventional antiferromagnets, whose sublattices are connected by a half-lattice translation, with their optical tensor unchanged. First-principles calculations on a semiconducting monolayer and a metallic bulk material put the effect's size within reach of standard magneto-optical setups.

What carries the argument

The spin group of the altermagnet, which is the set of symmetry operations that map spin-up sites onto spin-down sites. In a conventional antiferromagnet this operation is the combination of time reversal with a half-lattice translation (PT), which strain preserves; in an altermagnet it is a rotation or mirror (R/M), which strain along a non-symmetry-adapted direction breaks. The symmetry change makes the spin-resolved dielectric functions unequal and activates the off-diagonal optical conductivity responsible for the Kerr effect.

What would settle it

Measure strain-induced Kerr rotation on a conventional collinear antiferromagnet, such as NiO, using the same uniaxial strain geometry; if a comparable signal appears, the proposed contrast between altermagnets and antiferromagnets collapses. A quicker ab initio check would relax the internal coordinates of a strained conventional antiferromagnet and compute its off-diagonal optical conductivity.

Watch

Extended reading notes

Core claim

The central claim is that controlled uniaxial strain is a universal symmetry switch for altermagnets: it breaks the rotation or mirror symmetries that pair the two spin sublattices, turning on linear magneto-optical responses such as optical absorption and Kerr rotation that are symmetry-forbidden in the unstrained crystal, while preserving the PT symmetry that keeps ordinary antiferromagnets optically inactive. Because the optical conductivity tensor is the same object that yields the anomalous Hall conductivity at zero frequency, the same strain protocol also generalizes to Hall measurements.

Load-bearing premise

The paper assumes that a generic uniaxial strain preserves the PT symmetry of ordinary antiferromagnets, so the two spin sublattices remain exactly related by a half-lattice translation after the atoms relax, and that the altermagnet moments stay collinear without canting.

Editorial extensions

If this is right

  • A strained-sample Kerr rotation or absorption-peak splitting becomes a direct optical signature of altermagnetism, usable without spin-resolved detectors.
  • The universality claim implies the method transfers across known altermagnet families, covering two-dimensional monolayers and bulk crystals, insulators and metals.
  • Because the strain is weak and preserves collinear moments, the probe does not alter the magnetic structure it is detecting.
  • The off-diagonal optical tensor at zero frequency is the Hall conductivity, so the same symmetry-breaking recipe can activate an anomalous Hall response in altermagnets.
  • The predicted Kerr angle is comparable to that measured in chromium trihalide monolayers, meaning conventional magneto-optical equipment should detect it.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • The symmetry argument assumes ideal lattice geometry; a natural first-principles check would relax internal coordinates of a strained conventional antiferromagnet to confirm that the PT-preserving half-translation remains exact, otherwise the optical contrast could leak.
  • The mechanism could plausibly be extended to other symmetry-breaking perturbations, such as an electric field or substrate-induced strain, though the paper only demonstrates uniaxial strain.
  • If the universal fingerprint holds, optical screening could become a first-pass filter in high-throughput altermagnet searches, with spin-resolved photoemission reserved for confirmation.
  • Because the strain direction is chosen relative to the crystal axes, rotating the strain axis could map the orientation of the Néel vector; the paper notes orientation-dependent Kerr signals but does not propose this as a readout.
Share X Bluesky LinkedIn Reddit HN

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

3 major / 5 minor

Summary. The manuscript proposes that uniaxial strain can serve as a universal method to distinguish altermagnets (AMs) from conventional antiferromagnets (AFMs) through linear magneto-optical responses. The symmetry argument is that strain along a non-symmetry-adapted direction breaks the rotation/mirror symmetry connecting opposite-spin sublattices in AMs, whereas in AFMs the PT symmetry is preserved because the half-lattice translation simply re-adapts. This is argued to activate spin-resolved optical absorption and Kerr rotation in AMs but not in AFMs. The authors illustrate the mechanism with a crystal-field model and support it with DFT+U and BSE calculations for monolayer V2Se2O and bulk CrSb, plus a discussion of MnTe. They conclude that the approach is universal across AM platforms.

Significance. If correct, this would be an experimentally accessible, rapid screening tool for altermagnetism, which is genuinely important given the difficulty of distinguishing AMs from AFMs. The two first-principles examples are computed from first principles without fitting to the target signals, and the symmetry reasoning for the MOKE channel is sound. The universality claim, however, goes beyond the evidence, and the absorption channel lacks an AFM control; these issues are fixable.

major comments (3)
  1. [Symmetry considerations and microscopic interpretation / Computational verification, Fig. 2(d)] The claim that strain-induced optical absorption is a unique AM fingerprint is not supported, because the diagonal absorption Im[εαα] is not protected by PT symmetry in AFMs. Strain changes the crystal field in any material and can broaden absorption peaks purely through orbital splitting. The V2Se2O result in Fig. 2(d) interprets the broadening as a spin-degeneracy effect by plotting ε↑ and ε↓, but no strained conventional AFM control is presented. Without such a control, the experimentally accessible total absorption cannot be shown to distinguish AMs from AFMs; the Kerr channel is PT-protected and discriminates, but the inclusive abstract claim about 'optical absorption and Kerr rotation' should be qualified.
  2. [Crystal-field model / Summary] The universality assertion 'any AM will exhibit analogous strain-tunable optical dichroism' is an extrapolation from one model geometry (an octahedral d-wave AM) and two materials with similar octahedral coordination. The symmetry argument does not prove that every AM's spin sublattices become inequivalent under a generic strain in a way that yields the same optical response. This claim should be either supported by additional material classes or stated as a conjecture with explicit symmetry conditions.
  3. [Symmetry considerations, Figure 1(a)] The AFM side of the symmetry argument is asserted, not verified. The authors assume that uniaxial strain merely maps the half-lattice translation t1/2 to t'1/2 and preserves PT in AFMs. They do not relax internal coordinates to check that the two AFM sublattices remain exactly half-translation-related, and they do not check for spin canting. The Summary's statement that 'in all the strained structures calculated above, the magnetic moments are collinearly arranged without canting' is an assertion with no supporting calculation. If small strain makes the AFM sites inequivalent or introduces canting, the proposed contrast would degrade.
minor comments (5)
  1. [Abstract / Introduction] The phrase 'selectively breaks rotation or mirror symmetries' should be 'selectively break rotation or mirror symmetries' to agree with the plural subject.
  2. [Computational verification, Fig. 2(e) discussion] The word 'stranding' should be 'standing' in the sentence about positive and negative angles representing right- and left-hand Kerr rotations.
  3. [Computational verification] The text says 'a rigid scissors shift of 2.0 eV to the PEB+U wavefunction'; this should read 'PBE+U' and the scissors shift is normally applied to eigenvalues rather than wavefunctions.
  4. [Computational verification, Fig. 2] In Fig. 2(d), the dashed and dot-dashed spin-resolved curves are described in the text but not distinguished in the caption; please add labels or a legend.
  5. [Supplemental Material, Ref. [62]] The reference gives an incomplete URL 'http://...'; please provide a working link or a DOI for the Supplemental Material.

Circularity Check

0 steps flagged · score 0.0 of 10

No significant circularity; the central prediction is derived from explicit symmetry analysis and verified by first-principles calculations without fitting parameters to the target response.

full rationale

The paper's load-bearing chain—strain breaks the rotation/mirror symmetries that protect the compensated spin texture in altermagnets while preserving PT symmetry in conventional antiferromagnets, thereby activating off-diagonal optical conductivity and spin-split absorption—is established by the formal symmetry statements around Eqs. (1) and (2) and by the spin-group characterization of the two prototypes, not by fitting. The DFT+U and BSE calculations use standard methodology; the 2.0 eV scissors shift is a rigid gap correction and U is a Hubbard parameter, neither of which is optimized to reproduce the predicted MOKE or dichroism. The strain-induced spin splitting and magneto-optical signals are computed ab initio for V2Se2O and CrSb rather than imposed by the model. The crystal-field picture in Fig. 1b is explicitly a post hoc microscopic interpretation of the computed effect, which is legitimate explanation rather than circular derivation. The only self-citation, Ref. [63] for V2Se2O being an altermagnet, is corroborated by independent references [2,19,64] and is not load-bearing for the symmetry argument. The universality claim and the absence of a strained-AFM control are legitimate scientific-scope concerns, but they are not circular reductions of the derivation to its own inputs. Accordingly, no circular step is identified.

Assumptions & free parameters 3 free parameters · 4 assumptions · 0 invented entities

The central claim rests on two soft parameters (U and scissors shift) that rescale the energy axis of the spectra, and on three domain assumptions about how strain affects symmetry and magnetism. No new entities are introduced.

free parameters (3)
  • Hubbard U for V and Cr = not stated in main text
    DFT+U is used for ground states; the U values change the gap and the position of the d-d transitions that dominate the reported optical spectra, but the values are only in the Supplemental Material.
  • Rigid scissors shift = 2.0 eV
    Applied to PBE+U wavefunctions for V2Se2O before BSE to correct the gap; shifts the optical absorption peaks and therefore affects the comparison of strain-induced peak shifts.
  • Lorentzian smearing eta in Eq. (1) = 0.1 eV
    Chosen computationally for all spectra; broadens the peaks and can hide or exaggerate the spin-split absorption difference.
assumptions (4)
  • domain assumption The independent-particle Kubo formula (Eq. 1) with SOC gives the optical conductivity
    Used for all systems; for CrSb excitonic effects are ignored because it is metallic, and for V2Se2O only BSE excitons are included, not self-energy corrections beyond a rigid shift.
  • domain assumption Uniaxial strain preserves PT symmetry in ordinary AFMs with a renormalized half-translation t'1/2
    Stated in symmetry considerations and Figure 1a; essential for the AFM/AM contrast, but not verified by explicit relaxation.
  • domain assumption Strain does not tilt the magnetic moments or induce a net moment
    Stated in the Summary as negligible DMI; if canting appeared, the optical signal could come from weak ferromagnetism instead of altermagnetism.
  • ad hoc to paper A crystal-field model for d-wave AMs with octahedral pairs describes all altermagnets
    Used to argue universality, but only one octahedral geometry is analyzed and only V2Se2O and CrSb are computed.

how reviews work

0 comments
Cite this review

Pith. "Pith review of Symmetry-Breaking Magneto-Optical Effects in Altermagnets." pith.science (2026). https://pith.science/paper/IIH4AH45

@misc{pith2026250524124,
  author       = {Pith},
  title        = {Pith review of: Symmetry-Breaking Magneto-Optical Effects in Altermagnets},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/IIH4AH45}},
  note         = {Machine review of arXiv:2505.24124}
}
abstract

The recently discovered altermagnets (AMs), hosting momentum-dependent spin splitting and vanishing net magnetization, have attracted intensive attention for their promising application in novel spintronics. However, limited by facility and material constraints, experimentally distinguishing them from conventional antiferromagnets (AFMs) remains a challenge, which hinders the high-throughput screening for AM candidates. Here, we predict strain-mediated magneto-optical responses in AMs, which can serve as a universal and experimentally accessible strategy for efficient identification of AMs. Symmetry analysis reveals that uniaxial strain can selectively breaks rotation or mirror symmetries in AMs while preserving $PT$ symmetry in AFMs, thereby activating distinct linear magneto-optical responses (e.g., optical absorption and Kerr rotation) unique to AMs. First-principles calculations across prototypical systems -- including semiconducting V$_2$Se$_2$O monolayer and metallic CrSb bulk -- show that the strain-induced optical signatures are significant enough for conventional optical measurements. Our work establishes a rapid, non-invasive characterization methodology for altermagnetism across material platforms, accelerating its exploration for spin-based technologies.

Figures

Figures reproduced from arXiv: 2505.24124 by the authors.

Figure 1
Figure 1. FIG. 1. (a) Schematic diagram of the effects by a uniaxial [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. FIG. 2. (a) The top view of crystal structure of strained monolayer V [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
Figure 3
Figure 3. FIG. 3. The crystal structures of (a) unstrained and (b) [PITH_FULL_IMAGE:figures/full_fig_p004_3.png] view at source ↗

Discussion (0). Sign in to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Nanoscale Imaging of Strain-Controlled Altermagnetic Domains in {\alpha}-MnTe

    cond-mat.mtrl-sci 2026-07 conditional novelty 7.0 of 10

    In alpha-MnTe, compression makes magnetic domains grow by merging, and unloading leaves them fragmented in a different, metastable pattern, so the material remembers the strain history.

Reference graph

Works this paper leans on

65 extracted references · 38 canonical work pages · cited by 1 Pith paper

  1. [1]

    ˇSmejkal, R

    L. ˇSmejkal, R. Gonz´ alez-Hern´ andez, T. Jungwirth, and J. Sinova, Crystal time-reversal symmetry breaking and spontaneous Hall effect in collinear antiferromagnets, Sci- ence Advances6, eaaz8809 (2020)

    work page 2020

  2. [2]

    H.-Y. Ma, M. Hu, N. Li, J. Liu, W. Yao, J.-F. Jia, and J. Liu, Multifunctional antiferromagnetic materials with giant piezomagnetism and noncollinear spin current, Na- ture Communications12, 2846 (2021)

    2021

  3. [3]

    ˇSmejkal, J

    L. ˇSmejkal, J. Sinova, and T. Jungwirth, Emerging Re- search Landscape of Altermagnetism, Phys. Rev. X12, 040501 (2022)

    2022

  4. [4]

    Y.-P. Zhu, X. Chen, X.-R. Liu, Y. Liu, P. Liu, H. Zha, G. Qu, C. Hong, J. Li, Z. Jiang, X.-M. Ma, Y.-J. Hao, M.-Y. Zhu, W. Liu, M. Zeng, S. Jayaram, M. Lenger, J. Ding, S. Mo, K. Tanaka, M. Arita, Z. Liu, M. Ye, D. Shen, J. Wrachtrup, Y. Huang, R.-H. He, S. Qiao, Q. Liu, and C. Liu, Observation of plaid-like spin split- ting in a noncoplanar antiferromagn...

    work page Pith review arXiv 2024

  5. [5]

    Krempask´ y, L

    J. Krempask´ y, L. ˇSmejkal, S. W. D’Souza, M. Ha- jlaoui, G. Springholz, K. Uhl ´ ıˇ rov´ a, F. Alarab, P. C. Constantinou, V. Strocov, D. Usanov, W. R. Pudelko, R. Gonz´ alez-Hern´ andez, A. Birk Hellenes, Z. Jansa, H. Reichlov´ a, Z. ˇSob´ aˇ n, R. D. Gonzalez Betancourt, P. Wadley, J. Sinova, D. Kriegner, J. Min´ ar, J. H. Dil, and T. Jungwirth, Alter...

    arXiv 2024

  6. [6]

    C. Song, H. Bai, Z. Zhou, L. Han, H. Reichlova, J. H. Dil, J. Liu, X. Chen, and F. Pan, Altermagnets as a new class of functional materials, Nature Reviews Materials 6 10.1038/s41578-025-00779-1 (2025)

    doi:10.1038/s41578-025-00779-1 2025

  7. [7]

    S. S. Fender, O. Gonzalez, and D. K. Bediako, Altermag- netism: A Chemical Perspective, Journal of the Ameri- can Chemical Society147, 2257 (2025)

    2025

  8. [8]

    Predictable gate-field control of spin in altermagnets with spin-layer coupling

    R.-W. Zhang, C. Cui, R. Li, J. Duan, L. Li, Z.-M. Yu, and Y. Yao, Predictable Gate-Field Control of Spin in Al- termagnets with Spin-Layer Coupling, Physical Review Letters133, 056401 (2024), arXiv:2306.08902

    work page Pith review arXiv 2024

Show all 65 references
  1. [9]

    L. Bai, W. Feng, S. Liu, L. ˇSmejkal, Y. Mokrousov, and Y. Yao, Altermagnetism: Exploring New Frontiers in Magnetism and Spintronics, Advanced Functional Ma- terials34, 2409327 (2024), arXiv:2406.02123

    2024 arXiv

  2. [10]

    M. Gu, Y. Liu, H. Zhu, K. Yananose, X. Chen, Y. Hu, A. Stroppa, and Q. Liu, Ferroelectric switchable alter- magnetism, Physical Review Letters134, 106802 (2024), arXiv:2411.14216

    2024 arXiv

  3. [11]

    D. Wang, H. Wang, L. Liu, J. Zhang, and H. Zhang, Electric-Field-Induced Switchable Two-Dimensional Al- termagnets, Nano Letters25, 498 (2025)

    2025

  4. [12]

    Li, Y.-K

    Y.-Q. Li, Y.-K. Zhang, X.-L. Lu, Y.-P. Shao, Z.-q. Bao, J.-D. Zheng, W.-Y. Tong, and C.-G. Duan, Ferrovalley Physics in Stacked Bilayer Altermagnetic Systems, Nano Letters25, 6032 (2025), arXiv:2410.03155

    2025 arXiv

  5. [13]

    W. Chen, X. Zhou, W.-k. Lou, and K. Chang, Magneto- optical conductivity and circular dichroism in ¡math¿ ¡mi¿d¡/mi¿ ¡/math¿ -wave altermagnets, Physical Review B111, 064428 (2025)

    2025

  6. [14]

    Tan, Z.-f

    C.-y. Tan, Z.-f. Gao, H.-c. Yang, Z.-X. Liu, K. Liu, P.- j. Guo, and Z.-y. Lu, Crystal valley Hall effect, Physical Review B111, 094411 (2025)

    2025

  7. [15]

    Z. M. Yu, S. Guan, X. L. Sheng, W. Gao, and S. A. Yang, Valley-Layer Coupling: A New Design Principle for Val- leytronics, Physical Review Letters124, 37701 (2020), arXiv:1904.06498

    2020 arXiv

  8. [16]

    P. Liu, J. Li, J. Han, X. Wan, and Q. Liu, Spin-Group Symmetry in Magnetic Materials with Negligible Spin- Orbit Coupling, Physical Review X12, 021016 (2022), arXiv:2103.15723

    2022 arXiv

  9. [17]

    Sødequist and T

    J. Sødequist and T. Olsen, Two-dimensional altermag- nets from high throughput computational screening: Symmetry requirements, chiral magnons, and spin-orbit effects, Applied Physics Letters124, 182409 (2024), arXiv:2401.05992

    2024 arXiv

  10. [18]

    Zeng and Y

    S. Zeng and Y. J. Zhao, Description of two-dimensional altermagnetism: Categorization using spin group theory, Physical Review B110, 54406 (2024)

    2024

  11. [19]

    Y. Qi, J. Zhao, and H. Zeng, Spin-layer coupling in two- dimensional altermagnetic bilayers with tunable spin and valley splitting properties, Physical Review B110, 14442 (2024)

    2024

  12. [20]

    V. Leeb, A. Mook, L. ˇSmejkal, and J. Knolle, Sponta- neous Formation of Altermagnetism from Orbital Or- dering, Physical Review Letters132, 236701 (2024), arXiv:2312.10839

    2024 arXiv

  13. [21]

    B. Pan, P. Zhou, P. Lyu, H. Xiao, X. Yang, and L. Sun, General Stacking Theory for Altermagnetism in Bilayer Systems, Physical Review Letters133, 166701 (2024), arXiv:2409.06964

    2024 arXiv

  14. [22]

    Y. Che, Y. Chen, X. Liu, H. Lv, X. Wu, and J. Yang, In- verse Design of 2D Altermagnetic Metal–Organic Frame- work Monolayers from H¨ uckel Theory of Nonbonding Molecular Orbitals, JACS Au5, 381 (2025)

    2025

  15. [23]

    Y. Che, H. Lv, X. Wu, and J. Yang, Bilayer Metal–Organic Framework Altermagnets with Electri- cally Tunable Spin-Split Valleys, Journal of the American Chemical Society147, 14806 (2025)

    2025

  16. [24]

    I. I. Mazin, Altermagnetism in MnTe: Origin, predicted manifestations, and routes to detwinning, Physical Re- view B107, L100418 (2023), arXiv:2301.08573

    2023 arXiv

  17. [25]

    Hariki, A

    A. Hariki, A. Dal Din, O. J. Amin, T. Yamaguchi, A. Badura, D. Kriegner, K. W. Edmonds, R. P. Cam- pion, P. Wadley, D. Backes, L. S. I. Veiga, S. S. Dhesi, G. Springholz, L. ˇSmejkal, K. V´ yborn´ y, T. Jungwirth, and J. Kuneˇ s, X-Ray Magnetic Circular Dichroism in Altermagne...

    2024 arXiv

  18. [26]

    S. Lee, S. Lee, S. Jung, J. Jung, D. Kim, Y. Lee, B. Seok, J. Kim, B. G. Park, L. ˇSmejkal, C.-J. Kang, and C. Kim, Broken Kramers Degeneracy in Altermag- netic MnTe, Physical Review Letters132, 036702 (2024), arXiv:2308.11180

    2024 arXiv

  19. [27]

    J. Ding, Z. Jiang, X. Chen, Z. Tao, Z. Liu, T. Li, J. Liu, J. Sun, J. Cheng, J. Liu, Y. Yang, R. Zhang, L. Deng, W. Jing, Y. Huang, Y. Shi, M. Ye, S. Qiao, Y. Wang, and Y. Guo, Large Band Splitting in g -Wave Altermagnet CrSb, Physical Review Letters133, 206401 (2024)

    2024

  20. [28]

    M. Zeng, M. Zhu, Y.-P. Zhu, X. Liu, X.-M. Ma, Y.-J. Hao, P. Liu, G. Qu, Y. Yang, Z. Jiang, K. Yamagami, M. Arita, X. Zhang, T.-H. Shao, Y. Dai, K. Shimada, Z. Liu, M. Ye, Y. Huang, Q. Liu, and C. Liu, Observation of Spin Splitting in Room-Temperature Metallic Antifer- romagnet...

    2024 arXiv

  21. [29]

    Reimers, L

    S. Reimers, L. Odenbreit, L. ˇSmejkal, V. N. Strocov, P. Constantinou, A. B. Hellenes, R. Jaeschke Ubiergo, W. H. Campos, V. K. Bharadwaj, A. Chakraborty, T. Denneulin, W. Shi, R. E. Dunin-Borkowski, S. Das, M. Kl¨ aui, J. Sinova, and M. Jourdan, Direct observation of altermag...

    2024 arXiv

  22. [30]

    Z. Zhou, X. Cheng, M. Hu, R. Chu, H. Bai, L. Han, J. Liu, F. Pan, and C. Song, Manipulation of the al- termagnetic order in CrSb via crystal symmetry, Nature 638, 645 (2025)

    2025

  23. [31]

    Milivojevi´ c, M

    M. Milivojevi´ c, M. Orozovi´ c, S. Picozzi, M. Gmitra, and S. Stavri´ c, Interplay of altermagnetism and weak ferro- magnetism in two-dimensional RuF 4, 2D Materials11, 035025 (2024), arXiv:2401.15424

    2024 arXiv

  24. [32]

    Zhang, X

    F. Zhang, X. Cheng, Z. Yin, C. Liu, L. Deng, Y. Qiao, Z. Shi, S. Zhang, J. Lin, Z. Liu, M. Ye, Y. Huang, X. Meng, C. Zhang, T. Okuda, K. Shimada, S. Cui, Y. Zhao, G.-H. Cao, S. Qiao, J. Liu, and C. Chen, Crystal-symmetry-paired spin–valley locking in a layered room-temperature...

    2025

  25. [33]

    Jiang, M

    B. Jiang, M. Hu, J. Bai, Z. Song, C. Mu, G. Qu, W. Li, W. Zhu, H. Pi, Z. Wei, Y. Sun, Y. Huang, X. Zheng, Y. Peng, L. He, S. Li, J. Luo, Z. Li, G. Chen, H. Li, H. Weng, and T. Qian, A metallic room-temperature d-wave altermagnet, Nature Physics21, 754 (2025), arXiv:2408.00320

    2025 arXiv

  26. [34]

    Keßler, L

    P. Keßler, L. Garcia-Gassull, A. Suter, T. Prokscha, Z. Salman, D. Khalyavin, P. Manuel, F. Orlandi, I. I. Mazin, R. Valent ´ ı, and S. Moser, Absence of mag- netic order in RuO2: insights fromµSR spectroscopy and neutron diffraction, npj Spintronics2, 50 (2024), arXiv:2405.10820

    2024 arXiv

  27. [35]

    J. Liu, J. Zhan, T. Li, J. Liu, S. Cheng, Y. Shi, L. Deng, 7 M. Zhang, C. Li, J. Ding, Q. Jiang, M. Ye, Z. Liu, Z. Jiang, S. Wang, Q. Li, Y. Xie, Y. Wang, S. Qiao, J. Wen, Y. Sun, and D. Shen, Absence of Altermagnetic Spin Splitting Character in Rutile Oxide RuO 2, Physical Re...

    2024 arXiv

  28. [36]

    Fedchenko, J

    O. Fedchenko, J. Min´ ar, A. Akashdeep, S. W. D’Souza, D. Vasilyev, O. Tkach, L. Odenbreit, Q. Nguyen, D. Kut- nyakhov, N. Wind, L. Wenthaus, M. Scholz, K. Ross- nagel, M. Hoesch, M. Aeschlimann, B. Stadtm¨ uller, M. Kl¨ aui, G. Sch¨ onhense, T. Jungwirth, A. B. Hellenes, G. J...

    2024 arXiv

  29. [37]

    Hariki, Y

    A. Hariki, Y. Takahashi, and J. Kuneˇ s, X-ray magnetic circular dichroism in RuO 2, Physical Review B109, 094413 (2024), arXiv:2312.02629

    2024 arXiv

  30. [38]

    C. Zhu, P. Pilch, A. Reinold, D. Kudlacik, G. Springholz, A. Bonanni, M. Assmann, M. Cinchetti, and Z. Wang, Ultrafast dynamics of optically excited charge carriers in the room-temperature antiferromagnetic semiconductor α−MnTe, Phys. Rev. Mater.7, 054601 (2023)

    2023

  31. [39]

    I. Gray, Q. Deng, Q. Tian, M. Chilcote, J. S. Dodge, M. Brahlek, and L. Wu, Time-resolved magneto-optical effects in the altermagnet candidate MnTe, Applied Physics Letters125, 212404 (2024), arXiv:2404.05020

    2024 arXiv

  32. [40]

    Y. X. Ma, J. Z. Chang, Y. D. Liu, M. S. Si, G. P. Zhang, and Z. M. Zhang, Probing spin-split bands in altermag- nets through second harmonic generation, Phys. Rev. B 111, 064311 (2025)

    2025

  33. [41]

    R. D. Gonzalez Betancourt, J. Zub´ aˇ c, R. Gonzalez- Hernandez, K. Geishendorf, Z. ˇSob´ aˇ n, G. Springholz, K. Olejn ´ ık, L.ˇSmejkal, J. Sinova, T. Jungwirth, S. T. B. Goennenwein, A. Thomas, H. Reichlov´ a, J.ˇZelezn´ y, and D. Kriegner, Spontaneous Anomalous Hall Effect ...

    2023 arXiv

  34. [42]

    A. Bose, N. J. Schreiber, R. Jain, D. F. Shao, H. P. Nair, J. Sun, X. S. Zhang, D. A. Muller, E. Y. Tsymbal, D. G. Schlom, and D. C. Ralph, Tilted spin current generated by the collinear antiferromagnet ruthenium dioxide, Na- ture Electronics5, 267 (2022)

    2022

  35. [43]

    Z. Feng, X. Zhou, L. ˇSmejkal, L. Wu, Z. Zhu, H. Guo, R. Gonz´ alez-Hern´ andez, X. Wang, H. Yan, P. Qin, X. Zhang, H. Wu, H. Chen, Z. Meng, L. Liu, Z. Xia, J. Sinova, T. Jungwirth, and Z. Liu, An anomalous Hall effect in altermagnetic ruthenium dioxide, Nature Elec- tronics5,...

    2022

  36. [44]

    R. B. Regmi, H. Bhandari, B. Thapa, Y. Hao, N. Sharma, J. McKenzie, X. Chen, A. Nayak, M. El Gazzah, B. G. M´ arkus, L. Forr´ o, X. Liu, H. Cao, J. F. Mitchell, I. I. Mazin, and N. J. Ghimire, Altermagnetism in the layered intercalated transition metal dichalcogenide CoNb4Se8,...

    2025

  37. [45]

    Sheoran and P

    S. Sheoran and P. Dev, Spontaneous anomalous Hall ef- fect in two-dimensional altermagnets, Physical Review B 111, 184407 (2025), arXiv:2502.21095

    2025 arXiv

  38. [46]

    M. Wu, Z. Li, T. Cao, and S. G. Louie, Physical origin of giant excitonic and magneto-optical responses in two- dimensional ferromagnetic insulators, Nat. Commun.10, 2371 (2019)

    2019

  39. [47]

    Molina-S´ anchez, G

    A. Molina-S´ anchez, G. Catarina, D. Sangalli, and J. Fern´ andez-Rossier, Magneto-optical response of chromium trihalide monolayers: chemical trends, J. Mater. Chem. C8, 8856 (2020), arXiv:1912.01888

    2020 arXiv

  40. [48]

    M. Wu, Z. Li, and S. G. Louie, Optical and magneto- optical properties of ferromagnetic monolayer CrBr3 : A first-principles GW and GW plus Bethe-Salpeter equation study, Phys. Rev. Mater.6, 014008 (2022), arXiv:2106.00770

    2022 arXiv

  41. [49]

    X. Zhou, W. Feng, X. Yang, G.-Y. Guo, and Y. Yao, Crystal chirality magneto-optical effects in collinear an- tiferromagnets, Physical Review B104, 024401 (2021)

    2021

  42. [50]

    A. V. Kimel, T. Rasing, and B. A. Ivanov, Optical read- out and control of antiferromagnetic N´ eel vector in al- termagnets and beyond, Journal of Magnetism and Mag- netic Materials598, 172039 (2024)

    2024

  43. [51]

    Giannozzi, S

    P. Giannozzi, S. Baroni, N. Bonini, M. Calandra, R. Car, C. Cavazzoni, D. Ceresoli, G. L. Chiarotti, M. Cococ- cioni, I. Dabo, A. Dal Corso, S. de Gironcoli, S. Fabris, G. Fratesi, R. Gebauer, U. Gerstmann, C. Gougoussis, A. Kokalj, M. Lazzeri, L. Martin-Samos, N. Marzari, F. ...

    2009

  44. [52]

    Giannozzi, O

    P. Giannozzi, O. Andreussi, T. Brumme, O. Bunau, M. B. Nardelli, M. Calandra, R. Car, C. Cavazzoni, D. Ceresoli, M. Cococcioni, N. Colonna, I. Carnimeo, A. D. Corso, S. de Gironcoli, P. Delugas, R. A. D. Jr, A. Ferretti, A. Floris, G. Fratesi, G. Fugallo, R. Gebauer, U. Gerstm...

    2017

  45. [53]

    J. P. Perdew, K. Burke, and M. Ernzerhof, Generalized gradient approximation made simple, Phys. Rev. Lett. 77, 3865 (1996)

    1996

  46. [54]

    D. R. Hamann, Optimized norm-conserving vanderbilt pseudopotentials, Phys. Rev. B88, 085117 (2013)

    2013

  47. [55]

    van Setten, M

    M. van Setten, M. Giantomassi, E. Bousquet, M. Ver- straete, D. Hamann, X. Gonze, and G.-M. Rignanese, The pseudodojo: Training and grading a 85 element opti- mized norm-conserving pseudopotential table, Computer Physics Communications226, 39 (2018)

    2018

  48. [56]

    Marini, C

    A. Marini, C. Hogan, M. Gr¨ uning, and D. Varsano, Yambo: an ab initio tool for excited state calculations, Comput. Phys. Commun.180, 1392 (2009)

    2009

  49. [57]

    Sangalli, A

    D. Sangalli, A. Ferretti, H. Miranda, C. Attaccalite, I. Marri, E. Cannuccia, P. Melo, M. Marsili, F. Paleari, A. Marrazzo, G. Prandini, P. Bonf` a, M. O. Atambo, F. Affinito, M. Palummo, A. Molina-S´ anchez, C. Hogan, M. Gr¨ uning, D. Varsano, and A. Marini, Many-body per- tu...

    2019

  50. [58]

    Marsili, A

    M. Marsili, A. Molina-S´ anchez, M. Palummo, D. San- galli, and A. Marini, Spinorial formulation of theGW- BSE equations and spin properties of excitons in two- dimensional transition metal dichalcogenides, Phys. Rev. 8 B103, 155152 (2021)

    2021

  51. [59]

    Castro, E

    A. Castro, E. R¨ as¨ anen, and C. A. Rozzi, Exact coulomb cutoff technique for supercell calculations in two dimen- sions, Phys. Rev. B80, 033102 (2009)

    2009

  52. [60]

    Rohlfing and S

    M. Rohlfing and S. G. Louie, Electron-hole excitations and optical spectra from first principles, Phys. Rev. B 62, 4927 (2000)

    2000

  53. [61]

    L. X. Benedict and E. L. Shirley, Ab initio calculation of ϵ2(ω) including the electron-hole interaction: Application to gan and caf 2, Phys. Rev. B59, 5441 (1999)

    1999

  54. [62]

    for the follow- ing details: (1) Computational methodology

    See Supplemental Information at http://... for the follow- ing details: (1) Computational methodology. (2) More results for CrSb. (3) Results for MnTe

  55. [63]

    J. Sun, J. Han, Y. Du, and E. Kan, Optical controllable spin-polarization in two dimensional altermagnets via ro- bust spin-momentum locking excitons, submitted (2025), arXiv:2505.23237

    2025

  56. [64]

    H. Lin, J. Si, X. Zhu, K. Cai, H. Li, L. Kong, X. Yu, and H.-H. Wen, Structure and physical properties of CsV2Se2−xO and V 2Se2O, Phys. Rev. B98, 075132 (2018)

    2018

  57. [65]

    Kriegner, H

    D. Kriegner, H. Reichlova, J. Grenzer, W. Schmidt, E. Ressouche, J. Godinho, T. Wagner, S. Y. Martin, A. B. Shick, V. V. Volobuev, G. Springholz, V. Hol´ y, J. Wunderlich, T. Jungwirth, and K. V´ yborn´ y, Magnetic anisotropy in antiferromagnetic hexagonal mnte, Phys. Rev. B96...

    2017

Pith tools

Reviewed August 7, 2026 · model on record in the stance chip above.