期刊
PHYSICAL REVIEW LETTERS
卷 117, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.107201
关键词
-
资金
- DFG [SFB 767, SPP 1538]
- EU FP7 Marie Curie Zukunftskolleg Incoming Fellowship Programme, University of Konstanz [291784]
Domain-wall motion in antiferromagnets triggered by thermally induced magnonic spin currents is studied theoretically. It is shown by numerical calculations based on a classical spin model that the wall moves towards the hotter regions, as in ferromagnets. However, for larger driving forces the so-called Walker breakdown-which usually speeds down the wall-is missing. This is due to the fact that the wall is not tilted during its motion. For the same reason antiferromagnetic walls have no inertia and, hence, no acceleration phase leading to higher effective mobility.
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