Thermal vector potential theory of magnon-driven magnetization dynamics

Abstract

Thermal vector potential formulation is applied to study thermal dynamics of magnetic structures in insulating ferromagnets. By separating variables of the magnetic structure and magnons, the equation of motion for the structure including spin-transfer effect due to thermal magnons is derived in the case of a domain wall and a vortex. The magnon current is evaluated based on a linear response theory with respect to the thermal vector potential representing the temperature gradient. It is shown that the velocity of a domain wall when driven by thermal magnon has a strong temperature dependence unlike the case of an electrically-driven domain wall in metals.

References in corpus (10)

• Theoretical prediction of rotating magnon wavepacket in ferromagnets
• Microscopic approach to current-driven domain wall dynamics
• Thermal Spin-Transfer Torques in Magnetoelectronic Devices
• Threshold Current of Domain Wall Motion under Extrinsic Pinning, $\beta$-Term and Non-Adiabaticity
• Thermal vector potential theory of transport induced by temperature gradient
• Skyrmionic spin Seebeck effect via dissipative thermomagnonic torques
• Luttinger-field approach to thermoelectric transport in nanoscale conductors
• Landau-Lifshitz theory of the thermomagnonic torque
• Domain wall heat conductance in ferromagnetic wires
• Microscopic Theory of Magnon-Drag Thermoelectric Transport in Ferromagnetic Metals

Cited by in corpus (20)

• Magnon spin Nernst effect in antiferromagnets
• Effective gauge field theory of spintronics
• Spin torque and Nernst effects in Dzyaloshinskii-Moriya ferromagnets
• Enhanced Spin Conductance of a Thin-Film Insulating Antiferromagnet
• Wiggling skyrmion propagation under parametric pumping
• Temperature-driven transient charge and heat currents in nanoscale conductors
• Spin Hall and spin Nernst effects in a two-dimensional electron gas with Rashba spin-orbit interaction: temperature dependence
• Statics and field-driven dynamics of transverse domain walls in biaxial nanowires under uniform transverse magnetic fields
• Consistent microscopic analysis of spin pumping effects
• Effects of magnetic anisotropy on spin and thermal transports in classical antiferromagnets on the square lattice
• Current-induced spin polarization of a magnetized two-dimensional electron gas with Rashba spin-orbit interaction
• Spin-resolved orbital magnetization in Rashba two-dimensional electron gas
• Spin current as a probe of the ${\mathbb{Z}}_2$-vortex topological transition in the classical Heisenberg antiferromagnet on the triangular lattice
• Magnon-induced non-Markovian friction of a domain wall in a ferromagnet
• Thermally-induced spin polarization in a magnetized two-dimensional electron gas with Rashba spin-orbit interaction
• Magnonic thermal transport using the quantum Boltzmann equation
• Anomalous Luttinger equivalence between temperature and curved spacetime: From black hole's atmosphere to thermal quenches
• Theory of magnon motive force in chiral ferromagnets
• Spin and thermal transport and critical phenomena in three-dimensional antiferromagnets
• Voltage-Controlled Magnonic Spin Tunneling Junction