[22a-W241-1~11] CS.6 10.1, 10.2, 10.3のコードシェアセッション「新規スピン操作方法および関連現象」

▲ [22a-W241-8] Electric-Field-Induced X-ray Magnetic Circular Dichroism for Studying Perpendicularly Magnetized Ni/Cu Multilayers

〇岡林 潤¹、谷山 智康² (1.東大理、2.東工大)

キーワード：X-ray Magnetic Circular Dichroism,Electric field control,Perpendicularly magnetic anisotropy

Electric-field control of magnetic anisotropy is an important subject in spintronics research. Applying an electric field to BaTiO₃ makes it possible to tune the lattice volume by modulating the domain structures along the a- and c-axis directions. Electric-field control of the magnetic properties of Ni/Cu multilayers on BaTiO₃ was achieved, in which the magnetization switches from perpendicular to the in-plane magnetic easy axes. We have developed a novel technique of X-ray magnetic circular dichroism (XMCD) under an applied electric field in NiCu/BaTiO₃ to clarify the mechanism of the electric-field-induced changes in the magnetic anisotropy.