Pith. sign in

REVIEW 15 cited by

Pressure-enhanced spin-density-wave transition in double-layer nickelate $La_{3}Ni_{2}O_{7-\delta}$

Not yet reviewed by Pith; the record is open.

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

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2402.03952 v2 pith:VJWANASD submitted 2024-02-06 cond-mat.supr-con cond-mat.str-el

Dan Zhao , Yanbing Zhou , Mengwu Huo , Yu Wang , Linpeng Nie , Ye Yang , Jianjun Ying , Meng Wang
show 2 more authors
Tao Wu Xianhui Chen
This is my paper · ORCID
classification cond-mat.supr-concond-mat.str-el
keywords pressuresuperconductivitydeltatransitiondouble-layermagneticmeasurementssites
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

Recently, a signature of high-temperature superconductivity above the liquid nitrogen temperature (77 K) was reported for $La_{3}Ni_{2}O_{7-\delta}$ under pressure. This finding immediately stimulated intense interest in the possible mechanism of high-$T_{c}$ superconductivity in double-layer nickelates. Notably, the pressure-dependent phase diagram inferred from transport measurements indicates that the superconductivity under high pressure emerges from the suppression of density-wave-like order at ambient pressure, which is similar to high-temperature superconductors. Here, nuclear magnetic resonance (NMR) spectroscopy of $^{139}La$ nuclei was performed to study the density-wave-like transition in a single crystal of $La_{3}Ni_{2}O_{7-\delta}$. At high temperatures, two sets of sharp $^{139}La$ NMR peaks are clearly distinguishable from a broad background signals, which are ascribed to La(1) sites from two bilayer Ruddlesden-Popper phases with different oxygen vacancy ${\delta}$. As the temperature decreases, the temperature-dependent $^{139}La$ NMR spectra and nuclear spin-lattice relaxation rate $(1/T_{1}$) for both La(1) sites provide evidence of spin-density-wave (SDW) ordering below the transition temperature ($T_{SDW}$), which is ~ 150 K. The anisotropic splitting in the NMR spectra suggests the formation of a possible double spin stripe with magnetic moments aligned along the c-axis. Furthermore, we studied the pressure-dependent SDW transition up to ~ 2.7 GPa. Surprisingly, the $T_{SDW}$ inferred from NMR measurements of both La(1) sites increases with increasing pressure, which is opposite to the results from previous transport measurements under pressure and suggests an intriguing phase diagram between superconductivity and SDW. All these results will be helpful for building a connection between superconductivity and magnetic interactions in double-layer nickelates.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 15 Pith papers

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

  1. Magnetic Order in bilayer Ruddlesden-Popper Nickelates

    cond-mat.supr-con 2026-07 conditional novelty 6.0 of 10

    Combining superexchange with RKKY interactions between orbital-selective local moments reproduces the (π/2,π/2) magnetic order and ~80 meV spin excitations of bilayer nickelate La₃Ni₂O₇.

  2. Superconductivity of the hybrid Ruddlesden-Popper La5Ni3O11 single crystals under high pressure

    cond-mat.supr-con 2025-02 conditional novelty 6.0 of 10

    La5Ni3O11, a hybrid Ruddlesden-Popper nickelate, becomes superconducting under pressure above about 12 GPa, reaching a 64 K onset and a 54 K zero-resistance transition near 21 GPa.

  3. Direct Visualization of an Incommensurate Unidirectional Charge Density Wave in La$_4$Ni$_3$O$_{10}$

    cond-mat.supr-con 2025-01 conditional novelty 6.0 of 10

    STM/STS directly images an incommensurate unidirectional charge density wave with qCDW ≈ 0.76 qb and a Fermi-level gap of 2Δ ≈ 71 meV in La4Ni3O10.

  4. Correlated electronic structures and unconventional superconductivity in bilayer nickelate heterostructures

    cond-mat.str-el 2025-01 conditional novelty 6.0 of 10

    A DFT+cRPA+CDMFT calculation for bilayer nickelate thin films reproduces ARPES Fermi surfaces and predicts s±-wave pairing from spin fluctuations.

  5. Pressure-tunable structural instabilities in single-layer-trilayer La$_3$Ni$_2$O$_7$

    cond-mat.supr-con 2024-12 conditional novelty 6.0 of 10

    DFT phonon calculations show the P4/mmm phase of single-layer-trilayer La3Ni2O7 is unstable at all pressures up to 30 GPa, and the lowest-energy distortions combine two instabilities, contrary to experimental refinements.

  6. Origin of the Diagonal Double-Stripe Spin-Density-Wave and Potential Superconductivity in Bulk La$_3$Ni$_2$O$_{7}$ at Ambient Pressure

    cond-mat.supr-con 2024-12 conditional novelty 6.0 of 10

    An RPA analysis of an eight-band tight-binding model for ambient-pressure La3Ni2O7 reproduces the experimentally observed unidirectional diagonal double-stripe spin-density-wave and predicts enhanced pairing under hol...

  7. Evolution of magnetism in Ruddlesden-Popper bilayer nickelate revealed by muon spin relaxation

    cond-mat.str-el 2024-12 conditional novelty 6.0 of 10

    Muon spin relaxation finds long-range magnetic order below 161 K in La1.9Pr1.1Ni2O6.97 and short-range order below 30 K in oxygen-deficient La3Ni2O6.63, linking oxygen vacancies to suppressed magnetism.

  8. Numerical study of bi-layer two-orbital model for La$_{3}$Ni$_{2}$O$_{7}$ on a plaquette ladder

    cond-mat.str-el 2024-11 conditional novelty 6.0 of 10

    DMRG on a plaquette ladder model of La3Ni2O7 finds orbital-selective charge order, Neel-type spin correlations, and period-2 pairing-correlation sign oscillations suggestive of a pair density wave.

  9. Spin-density wave and superconductivity in La$_4$Ni$_3$O$_{10}$ under ambient pressure

    cond-mat.supr-con 2024-11 conditional novelty 6.0 of 10

    In La4Ni3O10 at ambient pressure, a stripe spin-density wave with wave vector near (0.7π,0) is driven by Hund's coupling, and hole doping around δ=-0.4 is predicted to induce superconductivity.

  10. Strongly Anisotropic Charge Dynamics in La3Ni2O7 with Coherent-to-Incoherent Crossover of Interlayer Charge Dynamics

    cond-mat.supr-con 2024-11 conditional novelty 6.0 of 10

    In La3Ni2O7, in-plane charge transport stays coherent from 10 to 300 K, while interlayer transport switches from coherent to incoherent as temperature rises toward 300 K.

  11. Orbital correlations in bilayer nickelates: roles of doping and interlayer coupling

    cond-mat.str-el 2025-02 conditional novelty 5.0 of 10

    In a two-orbital RPA model of La3Ni2O7, transverse orbital fluctuations peak at (π/2, π/2) and sit closer to divergence than longitudinal ones, pointing to a possible orbital-fluctuation mechanism.

  12. Signature of superconductivity in pressurized La4Ni3O10-x single crystals grown at ambient pressure

    cond-mat.supr-con 2025-01 conditional novelty 5.0 of 10

    Ambient-pressure flux-grown La4Ni3O10-x single crystals show a pressure-induced resistance drop and magnetic-field-suppressed Tc near 30 K at 77.9 GPa, a superconductivity signature matching floating-zone crystals.

  13. Evolution of Electronic Correlations in the Ruddlesden-Popper Nickelates

    cond-mat.supr-con 2024-11 accept novelty 5.0 of 10

    Optical measurements show electronic correlations weaken with increasing NiO6 layers in Ruddlesden-Popper nickelates, placing only the bilayer near a Mott transition.

  14. Low-temperature mean valence of nickel ions in pressurized La$_3$Ni$_2$O$_7$

    cond-mat.supr-con 2024-12 conditional novelty 4.0 of 10

    Nickel valence in La3Ni2O7 stays close to 2.5+ from ambient pressure to 40 GPa at 20 K, so pressure-induced superconductivity is tied to a structural transition rather than a change in nickel charge.

  15. Unveiling the multiband metallic nature of the normal state in nickelate La3Ni2O7

    cond-mat.supr-con 2024-12 conditional novelty 4.0 of 10

    Magnetoresistance of pressurized La3Ni2O7 follows a quasi-quadratic field dependence and extended Kohler scaling, leading the authors to conclude the normal state is a multiband metal.

Pith tools