[9p-C310-1~15] 6.4 Thin films and New materials

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[9p-C310-10] Correlation among Crystallinity, Optical Conductivity, and Thermal Transport Properties
in LaNiO₃ Thin Films

〇Sayuri Yonehara¹, Zaizen Haruka¹, Nagai Masaya², Asida Masaaki², Ohta Hiromichi⁴, Li Hao-Bo^1,3, Tanaka Hidekazu^1,3 (1.SANEKEN,The Uni.of Osaka, 2.Eng. Sci.The Uni.of Osaka, 3.OTRI,The Uni.of Osaka, 4.IRIES, Hokkaido Univ.)

Keywords:

strongly correlated system,epitaxial thin film,thin-film materials characterization

This study investigates how differences in crystallinity affect the optical conductivity and thermal conduction of LaNiO₃ thin films, which are expected to serve as thermal-switch materials. By measuring optical conductivity using infrared spectroscopy and comparing it with thermal conductivity obtained by TDTR, we aim to establish a method for understanding and predicting heat transport properties from optical measurements.