标题：Detection of interfacial spin accumulation induced by anomalous Hall effect in ferromagnets
作者：Hao, Runrun; Xu, Mengqi; Zhou, Tie; Kang, Shishou; Liu, Guolei; Bai, Lihui; Han, Guangbing; Yu, Shuyun; Yan, Shishen
作者机构：[Hao, Runrun; Xu, Mengqi; Zhou, Tie; Kang, Shishou; Liu, Guolei; Bai, Lihui; Han, Guangbing; Yu, Shuyun; Yan, Shishen] Shandong Univ, State Key Lab Cr 更多
通讯作者：Kang, Shishou;Kang, SS
通讯作者地址：[Kang, SS]Shandong Univ, State Key Lab Crystal Mat, Sch Phys, Jinan 250100, Shandong, Peoples R China.
来源：JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
关键词：Anomalous Hall effect; Spin accumulation; Field-control spin generators
摘要：We present an experimental observation of interfacial spin accumulation induced by anomalous Hall effect (AHE) in ferromagnets (FMs) in a multilayer structure of FM/YIG/Pt, where the direction of charge current injection in FM layer is perpendicular to the direction of voltage detection in Pt layer. In this structure, the magnon-mediated drag voltage (V-drag) due to the interfacial spin accumulation induced by AHE, can be unambiguously separated from spin Seebeck voltage (V-SSE) by sweeping or rotating the applied magnetic field. Field-dependent spin accumulation induced by AHE has been observed by comparison of nonlocal voltages between Ni/Cu/YIG/Pt and Pt/YIG/Pt samples. Furthermore, we demonstrate that the AHE voltage strongly depends on the spin polarization of conductivity and spin Hall angles of electrons with opposite spins in FMs. Our results show a prospect for FMs to be field-control spin generators via AHE, and provide a new viewpoint to realize the AHE.