Spin-orbit torques in ferrimagnetic GdFeCo alloys
- Univ. of California, Berkeley, CA (United States). Department of Physics
- Nagoya University (Japan). Department of Electrical Engineering and Computer Science
- Univ. of California, Berkeley, CA (United States). Department of Materials Science and Engineering
- Univ. of California, Berkeley, CA (United States). Department of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Science Division
- Nagoya University (Japan). Institute of Materials and Systems for Sustainability
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Science Division; Univ. of California, Berkeley, CA (United States). Department of Electrical Engineering and Computer Sciences
In this work, the spin-orbit torque switching of ferrimagnetic Gdx(Fe90Co10)100-xfilms was studied for both transition metal (TM)-rich and rare earth (RE)-rich configurations. The spin-orbit torque driven magnetization switching follows the same sense in TM-rich and RE-rich samples with respect to the total magnetization, but the sense of the switching is reversed with respect to the TM magnetization. This indicates that the sign of the spin-orbit-torque-driven magnetic switching follows the total magnetization, although transport based techniques such as anomalous Hall effect are only sensitive to the transition metal magnetization. Finally, these results provide important insight into the physics of spin angular momentum transfer in materials with antiferromagnetically coupled sublattices.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- SC-22.2 USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
- Grant/Contract Number:
- AC02-05CH11231; AC02-05-CH11231
- OSTI ID:
- 1456957
- Alternate ID(s):
- OSTI ID: 1325302
- Journal Information:
- Applied Physics Letters, Vol. 109, Issue 11; Related Information: © 2016 Author(s).; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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