Work

Joule heating in spin Hall geometry

Year: 2016

Type: article

Abstract: The theoretical formula for the entropy production rate in the presence of spin current is derived using the spin-dependent transport equation and thermodynamics. This theory is applicable regardless of the source of the spin current, for example, an electric field, a temperature gradient, or the Hall effect. It reproduces the result in a previous work on the dissipation formula when the relaxation time approximation is applied to the spin relaxation rate. By using the developed theory, it is found that the dissipation in the spin Hall geometry has a contribution proportional to the square of the spin Hall angle.

Source: Applied Physics Express

DOI: 10.7567/apex.9.073005

Author: Tomohiro Taniguchi

Institution: National Institute of Advanced Industrial Science and Technology

Language: English

Topic: Magnetic properties of thin films

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

Award: Theory of microwave assisted magnetization reversal based on nonlinear analysis