Nature and topology of the low-energy states in ZrTe5

L. Moreschini, J. C. Johannsen, H. Berger, J. Denlinger, C. Jozwiack, E. Rotenberg, Keun Su Kim, A. Bostwick, M. Grioni

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Long known for its peculiar resistivity, showing a thus far unexplained anomalous peak as a function of temperature, ZrTe5 has recently received rising attention in a somewhat different context. While both theoretical and experimental results seem to point to a nontrivial topology of the low-energy electronic states, there is no agreement on the nature of their topological character. Here, by an angle-resolved photoemission study of the evolution of the band structure with temperature and surface doping, we show that (i) the material presents a van Hove singularity close to the Fermi level, and (ii) no surface states exist at the (010) surface. These findings reconcile band structure measurements with transport results and establish the topology of this puzzling compound.

Original languageEnglish
Article number081101
JournalPhysical Review B
Volume94
Issue number8
DOIs
Publication statusPublished - 2016 Aug 4

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Band structure
Electron energy levels
topology
Topology
Surface states
Photoemission
Electronic states
Fermi level
Doping (additives)
trucks
Temperature
energy
photoelectric emission
electrical resistivity
temperature
electronics

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Moreschini, L., Johannsen, J. C., Berger, H., Denlinger, J., Jozwiack, C., Rotenberg, E., ... Grioni, M. (2016). Nature and topology of the low-energy states in ZrTe5. Physical Review B, 94(8), [081101]. https://doi.org/10.1103/PhysRevB.94.081101
Moreschini, L. ; Johannsen, J. C. ; Berger, H. ; Denlinger, J. ; Jozwiack, C. ; Rotenberg, E. ; Kim, Keun Su ; Bostwick, A. ; Grioni, M. / Nature and topology of the low-energy states in ZrTe5. In: Physical Review B. 2016 ; Vol. 94, No. 8.
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Moreschini, L, Johannsen, JC, Berger, H, Denlinger, J, Jozwiack, C, Rotenberg, E, Kim, KS, Bostwick, A & Grioni, M 2016, 'Nature and topology of the low-energy states in ZrTe5', Physical Review B, vol. 94, no. 8, 081101. https://doi.org/10.1103/PhysRevB.94.081101

Nature and topology of the low-energy states in ZrTe5. / Moreschini, L.; Johannsen, J. C.; Berger, H.; Denlinger, J.; Jozwiack, C.; Rotenberg, E.; Kim, Keun Su; Bostwick, A.; Grioni, M.

In: Physical Review B, Vol. 94, No. 8, 081101, 04.08.2016.

Research output: Contribution to journalArticle

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Moreschini L, Johannsen JC, Berger H, Denlinger J, Jozwiack C, Rotenberg E et al. Nature and topology of the low-energy states in ZrTe5. Physical Review B. 2016 Aug 4;94(8). 081101. https://doi.org/10.1103/PhysRevB.94.081101