Evidence for electronic signature of a magnetic transition in the topological magnet HoSbTe

Nana Shumiya, Jia Xin Yin, Guoqing Chang, Meng Yang, Sougata Mardanya, Tay Rong Chang, Hsin Lin, Md Shafayat Hossain, Yu Xiao Jiang, Tyler A. Cochran, Qi Zhang, Xian P. Yang, Youguo Shi, M. Zahid Hasan

Research output: Contribution to journalArticlepeer-review

Abstract

Topological insulators with intrinsic magnetic order are emerging as an exciting platform to realize fundamentally new excitations from topological quantum states of matter. To study these systems and their physics, people have proposed a variety of magnetic topological insulator systems, including HoSbTe, an antiferromagnetic weak topological insulator candidate. In this work, we use scanning tunneling microscopy to probe the electronic structure of HoSbTe with antiferromagnetic and ferromagnetic orders that are tuned by applying an external magnetic field. Although around the Fermi energy we find minor differences between the quasiparticle interferences under the ferromagnetic and antiferromagnetic orders, deep inside the valance region, a quasiparticle interference signal emerges with ferromagnetism. This observation is consistent with our first-principles calculations indicating the magnetism-driven transition of the electronic states in this spin-orbit coupled topological magnet.

Original languageEnglish (US)
Article number035151
JournalPhysical Review B
Volume106
Issue number3
DOIs
StatePublished - Jul 15 2022

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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