6533b825fe1ef96bd128344f
RESEARCH PRODUCT
Dynamically stabilized spin superfluidity in frustrated magnets
Yaroslav TserkovnyakDaniel HillJairo SinovaJairo SinovaRicardo Zarzuelasubject
Condensed Matter::Quantum GasesPhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsTexture (cosmology)FOS: Physical sciences02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesMagnetic fieldSuperfluidityMagnetMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesCondensed Matter::Strongly Correlated ElectronsCritical currentCurrent (fluid)010306 general physics0210 nano-technologyCritical fieldSpin-½description
We study the onset of spin superfluidity, namely coherent spin transport mediated by a topological spin texture, in frustrated exchange-dominated magnetic systems, engendered by an external magnetic field. We show that for typical device geometries used in nonlocal magnetotransport experiments, the magnetic field stabilizes a spin superflow against fluctuations, up to a critical current. For a given current, the critical field depends on the precessional frequency of the texture, which can be separately controlled. We contrast such dynamic stabilization of a spin superfluid to the conventional approaches based on topological stabilization.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-12-15 | Physical Review B |