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Induced magneto-transport properties at palladium/yttrium iron garnet interface

2013; American Institute of Physics; Volume: 103; Issue: 13 Linguagem: Inglês

10.1063/1.4822267

1520-8842

Tao Lin, Chi Tang, Jing Shi,

Quantum and electron transport phenomena

As a thin layer of palladium (Pd) is directly deposited on an yttrium iron garnet or YIG (Y3Fe5O12) magnetic insulator film, Pd develops both low- and high-field magneto-transport effects that are absent in standalone Pd or thick Pd on YIG. While the low-field magnetoresistance peak of Pd tracks the coercive field of the YIG film, the much larger high-field magnetoresistance and the Hall effect do not show any obvious relationship with the bulk YIG magnetization. The distinct high-field magneto-transport effects in Pd are shown to be caused by interfacial local moments in Pd.