Z 3-vestigial nematic order due to superconducting fluctuations in the doped topological insulators NbxBi2Se3 and CuxBi2Se3

Chang-woo Cho; Junying Shen; Jian Lyu; Omargeldi Atanov; Qianxue Chen; Seng Huat Lee; Yew San Hor; Dariusz Jakub Gawryluk; Ekaterina Pomjakushina; Marek Bartkowiak; Matthias Hecker; Jörg Schmalian; Rolf Lortz

doi:10.1038/s41467-020-16871-9

Nature Communications (Jun 2020)

Z 3-vestigial nematic order due to superconducting fluctuations in the doped topological insulators NbxBi2Se3 and CuxBi2Se3

Chang-woo Cho,
Junying Shen,
Jian Lyu,
Omargeldi Atanov,
Qianxue Chen,
Seng Huat Lee,
Yew San Hor,
Dariusz Jakub Gawryluk,
Ekaterina Pomjakushina,
Marek Bartkowiak,
Matthias Hecker,
Jörg Schmalian,
Rolf Lortz

Affiliations

Chang-woo Cho: Department of Physics, The Hong Kong University of Science and Technology
Junying Shen: Department of Physics, The Hong Kong University of Science and Technology
Jian Lyu: Department of Physics, The Hong Kong University of Science and Technology
Omargeldi Atanov: Department of Physics, The Hong Kong University of Science and Technology
Qianxue Chen: Department of Physics, The Hong Kong University of Science and Technology
Seng Huat Lee: Department of Physics, Missouri University of Science and Technology
Yew San Hor: Department of Physics, Missouri University of Science and Technology
Dariusz Jakub Gawryluk: Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute
Ekaterina Pomjakushina: Laboratory for Multiscale Materials Experiments, Paul Scherrer Institute
Marek Bartkowiak: Laboratory for Neutron and Muon Instrumentation, Paul Scherrer Institute
Matthias Hecker: Institute for Theory of Condensed Matter and Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology
Jörg Schmalian: Institute for Theory of Condensed Matter and Institute for Quantum Materials and Technologies, Karlsruhe Institute of Technology
Rolf Lortz: Department of Physics, The Hong Kong University of Science and Technology

DOI: https://doi.org/10.1038/s41467-020-16871-9
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 8

Abstract

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When an order parameter has multiple components, fluctuations can suppress the ordering partially, leaving behind vestigial order. Here the authors show that nematic superconductivity in electron-doped Bi2Se3 gives way to a vestigial nematic phase driven by fluctuating Cooper pairs.

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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