Distinct multiple fermionic states in a single topological metal

M. Mofazzel Hosen; Klauss Dimitri; Ashis K. Nandy; Alex Aperis; Raman Sankar; Gyanendra Dhakal; Pablo Maldonado; Firoza Kabir; Christopher Sims; Fangcheng Chou; Dariusz Kaczorowski; Tomasz Durakiewicz; Peter M. Oppeneer; Madhab Neupane

doi:10.1038/s41467-018-05233-1

Nature Communications (Aug 2018)

Distinct multiple fermionic states in a single topological metal

M. Mofazzel Hosen,
Klauss Dimitri,
Ashis K. Nandy,
Alex Aperis,
Raman Sankar,
Gyanendra Dhakal,
Pablo Maldonado,
Firoza Kabir,
Christopher Sims,
Fangcheng Chou,
Dariusz Kaczorowski,
Tomasz Durakiewicz,
Peter M. Oppeneer,
Madhab Neupane

Affiliations

M. Mofazzel Hosen: Department of Physics, University of Central Florida
Klauss Dimitri: Department of Physics, University of Central Florida
Ashis K. Nandy: Department of Physics and Astronomy, Uppsala University
Alex Aperis: Department of Physics and Astronomy, Uppsala University
Raman Sankar: Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan Institute of Physics, Academia Sinica
Gyanendra Dhakal: Department of Physics, University of Central Florida
Pablo Maldonado: Department of Physics and Astronomy, Uppsala University
Firoza Kabir: Department of Physics, University of Central Florida
Christopher Sims: Department of Physics, University of Central Florida
Fangcheng Chou: Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan Institute of Physics, Academia Sinica
Dariusz Kaczorowski: Institute of Low Temperature and Structure Research, Polish Academy of Sciences
Tomasz Durakiewicz: Condensed Matter and Magnet Science Group, Los Alamos National Laboratory
Peter M. Oppeneer: Department of Physics and Astronomy, Uppsala University
Madhab Neupane: Department of Physics, University of Central Florida

DOI: https://doi.org/10.1038/s41467-018-05233-1
Journal volume & issue: Vol. 9, no. 1
pp. 1 – 8

Abstract

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The existence of multiple topological phases in a single material, although theoretically possible, has not been verified. Here, the authors observe weak topological insulator surface states and a one-dimensional Dirac-node crossing surface state in a single metallic material Hf2Te2P.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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