REVIEW 11 cited by
Observation of Giant Spin Splitting and d-wave Spin Texture in Room Temperature Altermagnet RuO2
Not yet reviewed by Pith; the record is open.
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
Observation of Giant Spin Splitting and d-wave Spin Texture in Room Temperature Altermagnet RuO2
read the original abstract
Recently, a novel magnetic phase called altermagnetism has been proposed, ushering in a third distinct magnetic phase beyond ferromagnetism and antiferromagnetism. It is expected that this groundbreaking phase exhibits unique physical properties such as C-paired spin-valley locking, anomalous Hall effect, nontrivial Berry phase, and giant magnetoresistance, etc. Among all the predicted candidates, several room temperature altermagnets are suggested to host significant potential applications in the near future. Nevertheless, direct evidence about the spin pattern of the room temperature altermagnet is still unrevealed. Previous studies found that RuO2 is identified as the most promising candidate for room temperature d-wave altermagnetism, exhibiting a substantial spin splitting of up to 1.4 eV. In this study, utilizing angle-resolved photoemission spectroscopy (ARPES), we report experimental observation of the spin splitting in RuO2. Furthermore, employing spin-ARPES, we directly observed the d-wave spin pattern. Our results unequivocally show that RuO2 is a perfect d-wave altermagnet with great potential for upcoming spintronic applications.
Forward citations
Cited by 11 Pith papers
-
Intrinsic antiferromagnetic half-metal and topological phases from the ferrovalley states of the sliding bilayer altermagnets
Sliding bilayer altermagnets host antiferromagnetic half-metallicity and Chern insulator phases via spin-dependent interlayer hopping in ferrovalley states, demonstrated in V2OSSe by first-principles calculations.
-
Orbital-Selective Mott Transition and Correlation-Amplified Charge Ordering in the Altermagnet CsCr$_2$S$_2$O
Dynamical correlations amplify S-distortion-seeded dyz charge asymmetry between Cr sites, driving the Verwey-type MIT in altermagnetic CsCr2S2O; Te substitution is predicted to suppress it.
-
Giant Room-Temperature Third-Order Electrical Transport in a Thin-Film Altermagnet Candidate
Giant room-temperature third-order Hall effect observed in RuO2 thin films is correlated with altermagnetic order via quantum geometry.
-
Superconducting States and Intertwined Orders in Metallic Altermagnets
In C4T-symmetric d-wave altermagnets, equal-spin p-wave pairing condenses in two non-degenerate two-component gap sets, producing two transition temperatures, with nematic and spin-current-loop fluctuations respective...
-
Tunneling magnetoresistance in a junction made of $X$-wave magnets with $X=p,d,f,g,i$
A universal analytic formula for the TMR ratio in X-wave magnet junctions is derived, proportional to |J|/(N_X Γ) for small Γ, in contrast to the J²/Γ² dependence for ferromagnets.
-
Global magnetic phase diagram and multiple unconventional magnets in NiAs-type compounds
A J1-J2-J3 Heisenberg model plus DFT yields a global phase diagram for NiAs-type compounds that includes new g-wave altermagnets, f-wave OPMs, and mixed-parity states dominated by f-wave in CrSe and CrTe1-xSex.
-
Nonmagnetic-magnetic Transitions in Rutile RuO2
DFT calculations show RuO2 undergoes transitions between nonmagnetic and altermagnetic ground states as a function of Hubbard U and strain that changes cell volume.
-
Nonmagnetic-magnetic Transitions in Rutile RuO2
Correlation strength and volume-changing strain can switch bulk rutile RuO2 between nonmagnetic and multiple altermagnetic phases with spin splitting.
-
Incipient magnetic instability in RuO$_2$ with random phase approximation
RuO2 exhibits a leading instability toward commensurate altermagnetic order at low temperatures in the stoichiometric non-magnetic phase according to RPA analysis of susceptibility.
-
Fermi-liquid behavior and characteristic temperature-dependent susceptibility in clean RuO$_2$ crystal
Ultra-clean RuO2 crystals exhibit weakly correlated 3D Fermi-liquid behavior with susceptibility increasing with temperature due to lattice-expansion effects on the band structure.
-
Growth of ultra-clean single crystals of RuO2
Ultra-clean RuO2 single crystals grown via necked-tube sublimation transport achieve RRR up to 1200 with residual resistivity around 30 nOhm cm and no detected magnetic order.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.