Quasiparticle interference and nonsymmorphic effect on a floating band surface state of ZrSiSe

Zhen Zhu, Tay Rong Chang, Cheng Yi Huang, Haiyang Pan, Xiao Ang Nie, Xin Zhe Wang, Zhe Ting Jin, Su Yang Xu, Shin Ming Huang, Dan Dan Guan, Shiyong Wang, Yao Yi Li, Canhua Liu, Dong Qian, Wei Ku, Fengqi Song, Hsin Lin, Hao Zheng, Jin Feng Jia

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Non-symmorphic crystals are generating great interest as they are commonly found in quantum materials, like iron-based superconductors, heavy-fermion compounds, and topological semimetals. A new type of surface state, a floating band, was recently discovered in the nodal-line semimetal ZrSiSe, but also exists in many non-symmorphic crystals. Little is known about its physical properties. Here, we employ scanning tunneling microscopy to measure the quasiparticle interference of the floating band state on ZrSiSe (001) surface and discover rotational symmetry breaking interference, healing effect and half-missing-type anomalous Umklapp scattering. Using simulation and theoretical analysis we establish that the phenomena are characteristic properties of a floating band surface state. Moreover, we uncover that the half-missing Umklapp process is derived from the glide mirror symmetry, thus identify a non-symmorphic effect on quasiparticle interferences. Our results may pave a way towards potential new applications of nanoelectronics.

Original languageEnglish
Article number4153
JournalNature communications
Volume9
Issue number1
DOIs
Publication statusPublished - 2018 Dec 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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