期刊
IEEE MAGNETICS LETTERS
卷 6, 期 -, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMAG.2015.2471276
关键词
Spin electronics; inverse spin-Hall effect; spin pumping; magnetostatic surface spin waves
资金
- Swedish Research Council
- Swedish Foundation for Strategic Research
- Knut and Alice Wallenberg Foundation
- European Research Council under the European Community [307144]
- U.S. National Science Foundation [DMR-1015175, EPMD-1305574]
- U.S. Army TARDEC
- DARPA MTO/MESO [66001-11-1-4114]
- U.S. Army RDECOM
Spin pumping at a boundary between a yttrium-iron garnet (YIG) film and a thin platinum (Pt) layer is studied under conditions in which a magnetostatic surface spin wave (MSSW, or Damon-Eshbach mode) is excited in YIG by a narrow strip-line antenna. It is shown that the voltage created by the inverse spin-Hall effect (ISHE) in Pt is strongly dependent on the wavevector of the excited MSSW. For YIG film thicknesses of 41 and 0.9 mu m, the maximum ISHE voltage corresponds to the maximum of efficiently excited MSSW wavevectors and does not coincide with the maximum of absorbed microwave power. For a thinner (0.175 mu m) YIG film, the maximum of the ISHE voltage moves closer to the ferromagnetic resonance and almost coincides with the region of the maximum microwave absorption. We show that the effect is related to the change in the thickness profile and the wavenumber spectrum of the excited MSSW taking place when the YIG film thickness is increased.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据