[8a-A13-1~13] 6.3 Oxide electronics

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8a-A13-6] Transparent conducting properties of perovskite-type BaNbO₃ epitaxial thin films

〇(M1)Takanori Shinohara¹, Daichi Oka¹, Shunsuke Miyaji¹, Yasushi Hirose¹ (1.Tokyo Metroporitan Univ.)

Keywords:

transparent conductive film,correlated metal,epitaxial thin film

Transition-metal oxides with strong electronic correlation have recently attracted significant attention as transparent conductors because their plasma frequencies lie in the infrared region . Especially, epitaxial thin films of perovskite-type SrNbO₃ exhibit high optical transmittance extending into the ultraviolet region with a low electrical resistivity of 2.82 × 10^-5 Ω cm . In BaNbO₃, where the A-site Sr is substituted by Ba, it is expected that rotational distortions and orbital hybridization from the A-site are suppressed, which could alter the magnitude of visible-light absorption derived from the Nb d-d transitions. However, its optical properties have yet to be reported. In this study, we synthesized high-quality BaNbO₃ epitaxial thin films and evaluated their electrical and optical properties.