[17p-D61-1~14] 6.3 Oxide electronics

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-D61-3] Impacts of substrates and thickness on transport properties of LaTiO₃ epitaxial films

〇(M2)Yeongwoo Kim¹, Takuto Soma¹, Kohei Yoshimatsu¹, Akira Ohtomo¹ (1.Tokyo Tech., Dept. Chem. Sci. Eng.)

Keywords:

epitaxial strain,Mott transition

Perovskite-type oxide LaTiO₃ is an antiferromagnetic insulator which is known to become metallic through filling control. Meanwhile, attempts to metalize LaTiO₃ through bandwidth control by epitaxial strain have been examined. In this study, we report the results of Mott transitions in LaTiO₃ thin films grown on various substrates with varying film thicknesses. Additionally, we discuss the relationship between in-plane compressive strain, surface oxidation, and transport properties.