[20a-C309-1~13] 6.1 Ferroelectric thin films

△ [20a-C309-10] Improvement in magnetic transition temperature of multiferroic Fe₂Mo₃O₈ films

〇Shishin Mo¹, Tsukasa Katayama¹, Akira Chikamatsu¹, Goro Shibata^1,2, Atsushi Fujimori¹, Shintaro Yasui³, Mitsuru Itoh³, Tetsuya Hasegawa¹ (1.Univ. of Tokyo, 2.Tokyo Univ. of Sci., 3.Tokyo Tech.)

Keywords:multiferroics, oxide thin films, magnetism

Fe₂Mo₃O₈ (FMO), a multiferroic compound have attracted attensions because of its large magnetoelectric effect. However, its magnetic transition temperature (T_C) is as low as 60 K. In our previous speech, we have shown that T_C in FMO thin films is 230 K. In this study, we report on scanning transmission electron microscopy, X-ray magnetic circular dichroism, and first-principles calculations in order to elucidate the mechanism of enhancement of T_C.