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

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-E207-12] Detection of chirality-dependent circular photogalvanic effect in chiral supramolecular polymer

〇Masami Komoike¹, Mahiro Yamamoto¹, Satoru Yoshida², Jorge Puebla^1,3, Ryo Ohshima^1,3, Yuichiro Ando⁴, Kazuo Akagi², Masashi Shiraishi^1,3 (1.Kyoto Univ., 2.Ritsumeikan Univ., 3.CSRN, Kyoto univ., 4.Osaka Metropolitan Univ.)

Keywords:

chirality,circular photogalvanic effect

As a manifestation of the interplay between structural chirality and spin, we investigated chirality-dependent circular photogalvanic effect in H-PEDOT, a chiral supramolecular polymer exhibiting both electrical conductivity and chirality. In our previous presentation, we observed a chirality-dependent photocurrent under 405 nm illumination; however, a significant contribution from circular dichroism (CD) was suggested. In the present study, photocurrent measurements were performed at 633 nm, where the contribution from CD is substantially reduced. In the presentation, the possibility of a chiral photoresponse that cannot be explained solely by CD will be discussed based on the incident-angle dependence of the photocurrent.