2015/09/30 by Alexey A. Kovalev, Vladimir A. Zyuzin, Vladimir Zyuzin · 1 citation
Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Berry connection and curvature #Condensed matter physics #Curvature #Ferromagnetism #Geometry #Magnetic properties of thin films #Magnon #Mathematics #Nernst effect #Nernst equation #Non-equilibrium thermodynamics #Physics #Quantum mechanics #Spin (aerodynamics) #Topological Materials and Phenomena #Torque #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.93.161106
published as Phys. Rev. B 93, 161106 (2016) · 5 pages, 3 figures, supplemental material
openalex publication_date 2016/04/11 · arxiv created 2016/04/12 · arxiv updated 2016/04/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
We predict that a temperature gradient can induce a magnon-mediated intrinsic torque in systems with a nontrivial magnon Berry curvature. With the help of a microscopic linear response theory of nonequilibrium magnon-mediated torques and spin currents we identify the interband and intraband components that manifest in ferromagnets with Dzyaloshinskii-Moriya interactions and magnetic textures. To illustrate and assess the importance of such effects, we apply the linear response theory to the magnon-mediated spin Nernst and torque responses in a kagome lattice ferromagnet.