[18p-D61-1~21] 10.4 Spintronics in semiconductor, topological material, superconductor, and multiferroics

6:15 PM - 6:30 PM JST(9:15 AM - 9:30 AM UTC)

[18p-D61-20] Nonlinear planar Hall effect in topological crystalline insulator Pb_1-xSn_xTe

〇Yu Tamai¹, Taiki Nishijima¹, Junya Kobayashi², Keito Shoji², Yuichiro Ando³, Ryo Ohshima¹, Shinji Kuroda², Masashi Shiraishi¹ (1.Kyoto Univ., 2.Univ. Tsukuba, 3.Osaka Metropolitan Univ.)

Keywords:

topological insulator,Nonlinear planar Hall effect

Pb_1-xSn_xTe (PST) exhibits significant changes in its physical properties depending on its composition ratio. Particularly under the condition of x > 0.25, the bulk is an insulator, but its surface becomes a metallic topological crystalline insulator (TCI). we focused on the nonlinear planar Hall effect, which is expected to be a method for probing the nontrivial spin texture in momentum space, and evaluated SnTe and PST, which are TCIs, as well as PbTe, which is a bulk insulator.