[22a-B201-1~11] 10.1 新物質・新機能創成（作製・評価技術）

▲ [22a-B201-8] Operando XMCD and EXAFS spectroscopies for orbital control by reversible strain
at Co₂FeSi/PMN-PT interface

〇Jun Okabayashi¹、Takamasa Usami²、Yu Shiratsuchi^3,2、Ryoichi Nakatani^3,2、Kohei Hamaya^3,2,4 (1.UTokyo、2.CSRN, Osaka Univ.、3.Osaka Univ.、4.OTRI, Osaka Univ.)

キーワード：magnetic anisotropy, Heusler alloy, X-ray magnetic spectroscopy

Artificial ferromagnetic/ferroelectric multiferroic heterostructures have been widely investigated for the control of magnetism and magnetic anisotropy. In order to investigate the origin of electric field control, we developed the x-ray absorption and magnetic circular dichroism spectroscopies under applying electric field. For the interface between Heusler alloy Co₂FeSi and ferroelectric PMN-PT, we report the modulation of orbital magnetic moments by reversible strain through the electric field.