Nature Communications (Aug 2016)
Temperature-driven massless Kane fermions in HgCdTe crystals
- F. Teppe,
- M. Marcinkiewicz,
- S. S. Krishtopenko,
- S. Ruffenach,
- C. Consejo,
- A. M. Kadykov,
- W. Desrat,
- D. But,
- W. Knap,
- J. Ludwig,
- S. Moon,
- D. Smirnov,
- M. Orlita,
- Z. Jiang,
- S. V. Morozov,
- V.I. Gavrilenko,
- N. N. Mikhailov,
- S. A. Dvoretskii
Affiliations
- F. Teppe
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- M. Marcinkiewicz
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- S. S. Krishtopenko
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- S. Ruffenach
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- C. Consejo
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- A. M. Kadykov
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- W. Desrat
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- D. But
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- W. Knap
- Laboratoire Charles Coulomb, UMR CNRS 5221, University of Montpellier
- J. Ludwig
- National High Magnetic Field Laboratory
- S. Moon
- National High Magnetic Field Laboratory
- D. Smirnov
- National High Magnetic Field Laboratory
- M. Orlita
- Laboratoire National des Champs Magnétiques Intenses, CNRS-UJF-UPS-INSA
- Z. Jiang
- School of Physics, Georgia Institute of Technology
- S. V. Morozov
- Institute for Physics of Microstructures, Russian Academy of Sciences
- V.I. Gavrilenko
- Institute for Physics of Microstructures, Russian Academy of Sciences
- N. N. Mikhailov
- Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences
- S. A. Dvoretskii
- Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences
- DOI
- https://doi.org/10.1038/ncomms12576
- Journal volume & issue
-
Vol. 7,
no. 1
pp. 1 – 6
Abstract
Kane fermions are predicted to be tunable with external parameters such as temperature. Here, Teppe et al. show a band structure evolution of bulk HgCdTe as temperature is tuned across topological phase transition, demonstrating that Kane fermions change sign in rest-mass and remain constant in velocity.
