Low-energy μsR Study on the Tetradymite Topological Insulator Bi1.5Sb0.5TeSe2

Takayuki Goto, Kazuki Matsui, Tadashi Adachi, Tomi Ohtsuki, Ngoc Han Tu, Yoichi Tanabe, Katsumi Tanigaki, Isao Watanabe, Zaher Salman, Andreas Suter, Thomas Prokscha

Research output: Contribution to journalConference articlepeer-review


A new method utilizing the low energy muon spin rotation (μSR) technique to investigate the spin structure within the surface layer of topological insulator has been proposed. In order to detect the spin polarization parallel with the surface, one applies a weak field Bpar, which, by breaking the time reversal symmetry, is expected to induce a net magnetization perpendicular the surface. This will affect the profile of muon spin depolarization spectra. Preliminary measurements on the topological insulator Bi1.5Sb0.5TeSe2 with tetradymite structure are also shown.

Original languageEnglish
Pages (from-to)100-105
Number of pages6
JournalPhysics Procedia
Publication statusPublished - 2015
Event20th International Conference on Magnetism, ICM 2015 - Barcelona, Spain
Duration: 2015 Jul 52015 Jul 10


  • Topological insulator
  • muSR
  • spin-locking

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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