Publication Date:
2018-09-01
Description:
Author(s): Xiao Liang, Guoyi Shi, Longjiang Deng, Fei Huang, Jun Qin, Tingting Tang, Chuangtang Wang, Bo Peng, Cheng Song, and Lei Bi Understanding the structural origin of the magnetic proximity effect (MPE) at the interface of Pt and Y 3 Fe 5 O 12 (YIG) is critical to developing YIG-based spintronic devices. This work reveals that the MPE mechanism at this interface is due to band hybridization and exchange coupling between tetrahedral Fe 3 + ions and Pt atoms. Controlled substitution of nonmagnetic Al 3 + for Fe 3 + in YIG’s tetrahedral lattice is the key to these experiments. MPE depends linearly on the concentration of tetrahedral Fe 3 + in YIG and plays the main part in the anomalous Hall effect at lower temperatures, while at higher temperatures the spin Hall effect is dominant. [Phys. Rev. Applied 10, 024051] Published Fri Aug 31, 2018
Electronic ISSN:
2331-7019
Topics:
Physics
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