@article{149d68b9019b4586b1e96870dd6055c0,
title = "Quasiparticle interference observation of the topologically nontrivial drumhead surface state in ZrSiTe",
abstract = "Drumhead surface states that link together loops of nodal lines arise in Dirac nodal-line semimetals as a consequence of the topologically nontrivial band crossings. We used low-temperature scanning tunneling microscopy and Fourier-transformed scanning tunneling spectroscopy to investigate the quasiparticle interference (QPI) properties of ZrSiTe. Our results show two scattering signals across portions of the drumhead state resolving the energy-momentum relationship through the occupied and unoccupied energy ranges it is predicted to span. Observation of this drumhead state is in contrast to previous studies on ZrSiS and ZrSiSe, where the QPI was dominated by topologically trivial bulk bands and surface states. Furthermore, we observe a near k→-k scattering process across the Γ point, enabled by scattering between the spin-split drumhead bands in this material, showing the persistence of the drumhead state even in the presence of spin-orbit coupling.",
author = "Stuart, {B. A.} and Seokhwan Choi and Jisun Kim and Lukas Muechler and Raquel Queiroz and Mohamed Oudah and Schoop, {L. M.} and Bonn, {D. A.} and Burke, {S. A.}",
note = "Funding Information: We would like to thank Yan Sun for providing the Wannier function fit, and Vidya Madhavan for discussions. Work at UBC was supported by the Natural Sciences and Engineering Research Council Discovery Grant Program (Grants No. RGPIN 2018-04271 and No. RGPIN 2018-04280) and Research Tools and Instruments (Grant No. EQPEQ 473024-15), the Quantum Matter Institute, the Canada First Research Excellence Fund, the Canada Research Chairs program (S.B.), and the MP-UBC-UTokyo Center for Quantum Materials. Work at Princeton was supported by the Gordon and Betty Moore Foundation through Grant No. GBMF9064 to L.M.S. The Flatiron Institute is a division of the Simons Foundation. R.Q. was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), Projektnummer 277101999, TRR 183 (project B03), and the Israel Science Foundation. Publisher Copyright: {\textcopyright} 2022 American Physical Society.",
year = "2022",
month = mar,
day = "15",
doi = "10.1103/PhysRevB.105.L121111",
language = "English (US)",
volume = "105",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "12",
}