[Th-P] Topological States of Matter

[Th-P-46] Magneto-reflection study on elemental Bismuth

〇Kanji Takehana¹, Yasutaka Imanaka¹, Akiyoshi Yamada², Yuki Fuseya², Yuto Kinoshita³, Masashi Tokunaga³ (1. National Institute for Materials Science (Japan), 2. Department of Physics, Kobe University (Japan), 3. Institute for Solid State Physics, The University of Tokyo (Japan))

Magneto-reflectance has been investigated on the single crystal of the elemental bismuth in high magnetic fields up to B = 15 T. In addition to the Landau-level transitions, a strong structure was observed in the quantum limit at B // trigonal, which was attributed to a branch of the collective modes of an electron-hole system.