[8p-E207-1~17] 10.4 Spintronics in semiconductor, topological material, superconductor, and multiferroics

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-E207-10] Observation of field-induced polarization dependent photovoltaic effect in two-dimensional electron gas at the surface of SrTiO₃

〇(DC)Mahiro Yamamoto¹, Jorge Puebla^1,2, Ryo Ohshima^1,2, Yuichiro Ando³, Masashi Shiraishi^1,2 (1.Kyoto Univ., 2.CSRN Kyoto Univ., 3.Osaka Metro. Univ.)

Keywords:

Two dimensional electron gas,Rashba SOI,Photovoltaic effect

In recent years, attempts have been made to describe the photovoltaic effect generated by applying a DC electric field and irradiating light called field-induced photovoltaic effect. The mechanism for generating this photovoltage is that an electric field or light breaks the symmetry of the system, and the other probes and transports the break. In this study, we focused on the field-induced photovoltaic effect in a two-dimensional electron gas at SrTiO₃ surface, which exhibits a strong Rashba-type spin-orbit interaction with an in-plane centrosymmetry but a unique spin structure.