[15a-K301-1~11] 17.3 Layered materials

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[15a-K301-5] Polarization-resolved and Frequency-modulated Photocurrent Measurements
on Weyl Semimetal TaIrTe₄

〇Kenya Tanaka¹, Akira Takakura¹, Taishi Nishihara², Yasutomo Segawa¹, Kazunari Matsuda¹, Yuhei Miyauchi¹ (1.Kyoto Univ., 2.IMS)

Keywords:

Weyl semimetal,photocurrent mapping,mid-infrared photodetections

To develop high-speed, highly sensitive, and uncooled photodetectors in the mid- to far-infrared region, we investigated the photocurrent characteristics of the Weyl semimetal TaIrTe₄. We synthesized TaIrTe₄, fabricated devices, and performed photocurrent mapping while varying the polarization angle, photon energy, and modulation frequency. Based on these results, we discuss the mechanism of infrared photocurrent generation.