Year: 2014
Type: article
Abstract: We demonstrate the general principle which states that a dissipationless spin current flows between two coupled ferromagnets if their magnetic orders are misaligned. This principle applies regardless of whether the two ferromagnets are metallic or insulating, and also generally applies to bulk magnetic insulators. On a phenomenological level, this principle is analogous to the Josephson effect, and yields a dissipationless spin current that is independent of scattering. The microscopic mechanisms for the dissipationless spin current depend on the systems, which are elaborated in detail. A uniform, static magnetic field is further proposed to be an efficient handle to create the misaligned configuration and stabilize the dissipationless spin current.
Source: Physical Review B
Authors: Wei Chen, Peter Horsch, Dirk Manske
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2024414261