Spin superfluid state at room temperature

2020/01/01 by Yury Bunkov · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #Cold Atom Physics and Bose-Einstein Condensates

paper · doi:10.1063/5.0011601

openalex publication_date 2020/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

The spin superfluid state was observed in Yttrium Iron Garnet (YIG) at room temperature. It is similar to a Homoge- neous Precessing State (HPD), observed early in antiferromagnetic superfluid 3He-B. The difference between magnon BEC state and spin superfluidity is discussed. The conditions for long distance coherent magnetization transport are highlighted. We explain, why spin superflow is not possible in the case of attractive interaction between magnons, like in in-plain magnetized YIG film.

Citations

• Coherent Precession of Magnetization in the SuperfluidHe<mml:mprescripts/><mml:none/>3A-Phase
• Bose-Einstein condensation of magnons in superfluid 3He
• Observation of Bose-Einstein Condensation in a Dilute Atomic Vapor
• Low frequency oscillations of the homogeneously precessing domain in 3He-B
• Persistent Signal; Coherent NMR state trapped by orbital texture
• Viscosity of Liquid Helium below the λ-Point
• Magnon BEC in superfluid 3He-A
• Field Dependence of the Intrinsic Domain Magnetization of a Ferromagnet
• Goldstone mode of a magnon Bose−Einstein condensate in MnCO3
• Magnon Condensation into aQBall inHe<mml:mprescripts/><mml:none/>3−B

Cited by

• Yury Bunkov [wikipedia]