[14p-419-1~16] 6.3 Oxide electronics

△ [14p-419-6] Magnetic Domain and Electronic structure of LaAlO₃/CaTiO₃ Interface Observed by Laser-excited Photoelectron Emission Microscopy

〇Yoshihito Motoyui¹, Xiuyi Hou¹, Kairi Morozumi¹, Toshiyuki Taniuchi¹, Ryota Takahashi¹, Mikk Lippmaa¹, Shik Shin¹ (1.ISSP, the university of Tokyo)

Keywords:magnetism, PEEM

The ferromagnetism at interfaces between oxides which are non-magnets and insulators had been reported with the two dimensional metallic states. However, the origin had been discussed. In our study, we assumed the stoner criterion to explain the existence of the magnetism and have measured LaAlO3/CaTiO3 which satisfy easily the criterion compared to LaAlO₃/SrTiO₃. From the results, we will discuss the origin.