Magnetotransport in metal/insulating-ferromagnet heterostructures: Spin Hall magnetoresistance or magnetic proximity effect

X. Zhou, L. Ma, Z. Shi, W. J. Fan, Jian Guo Zheng, R. F L Evans, S. M. Zhou

Research output: Contribution to journalArticlepeer-review


We study the anomalous Hall-like effect (AHLE) and the effective anisotropic magnetoresistance (EAMR) in antiferromagnetic γ-IrMn3/Y3Fe5O12(YIG) and Pt/YIG heterostructures. For γ-IrMn3/YIG, the EAMR and the AHLE resistivity change sign with temperature due to the competition between the spin Hall magnetoresistance (SMR) and the magnetic proximity effect (MPE) induced by the interfacial antiferromagnetic uncompensated magnetic moment. In contrast, for Pt/YIG, the AHLE resistivity changes sign with temperature whereas no sign change is observed in the EAMR. This is because the MPE and the SMR play a dominant role in the AHLE and the EAMR, respectively. As different types of galvanomagnetic properties, the AHLE and the EAMR have proved vital in disentangling the MPE and the SMR in metal/insulating-ferromagnet heterostructures.

Original languageEnglish
Article number060402
JournalPhysical Review B
Issue number6
Publication statusPublished - 4 Aug 2015

Cite this