[22a-W241-1~11] CS.6 10.1/10.2/10.3 Code sharing session "Emerging control-methods of magnetization and related phenomena"

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

〇Jun Okabayashi¹, Tomoyasu Taniyama² (1.Univ. of Tokyo, 2.Tokyo Tech.)

Keywords: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.