On the Remarkable Superconductivity of FeSe and Its Close Cousins
Abstract
Emergent electronic phenomena in iron-based superconductors have been at the forefront of condensed matter physics for more than a decade. Much has been learned about the origins and intertwined roles of ordered phases, including nematicity, magnetism, and superconductivity, in this fascinating class of materials. In recent years, focus has been centered on the peculiar and highly unusual properties of FeSe and its close cousins. This family of materials has attracted considerable attention due to the discovery of unexpected superconducting gap structures, a wide range of superconducting critical temperatures, and evidence for nontrivial band topology, including associated spin-helical surface states and vortex-induced Majorana bound states. Here, we review superconductivity in iron chalcogenide superconductors, including bulk FeSe, doped bulk FeSe, FeTe1–xSex, intercalated FeSe materials, and monolayer FeSe and FeTe1–xSex on SrTiO3. We focus on the superconducting properties, including a survey of the relevant experimental studies, and a discussion of the different proposed theoretical pairing scenarios. In the last part of the paper, we review the growing recent evidence for nontrivial topological effects in FeSe-related materials, focusing again on interesting implications for superconductivity.
- Publication Date:
- Research Org.:
- Univ. of Florida, Gainesville, FL (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC)
- OSTI Identifier:
- 1650200
- Alternate Identifier(s):
- OSTI ID: 1800322
- Grant/Contract Number:
- FG02-05ER46236
- Resource Type:
- Published Article
- Journal Name:
- Symmetry
- Additional Journal Information:
- Journal Name: Symmetry Journal Volume: 12 Journal Issue: 9; Journal ID: ISSN 2073-8994
- Publisher:
- MDPI AG
- Country of Publication:
- Switzerland
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Science & Technology - Other Topics; iron-based superconductivity; unconventional superconductivity; magnetism; nematicity; superconducting pairing; strongly correlated electrons; multiband superconductivity; topological superconductivity; Majorana zero modes
Citation Formats
Kreisel, Andreas, Hirschfeld, Peter J., and Andersen, Brian M. On the Remarkable Superconductivity of FeSe and Its Close Cousins. Switzerland: N. p., 2020.
Web. doi:10.3390/sym12091402.
Kreisel, Andreas, Hirschfeld, Peter J., & Andersen, Brian M. On the Remarkable Superconductivity of FeSe and Its Close Cousins. Switzerland. https://doi.org/10.3390/sym12091402
Kreisel, Andreas, Hirschfeld, Peter J., and Andersen, Brian M. Sun .
"On the Remarkable Superconductivity of FeSe and Its Close Cousins". Switzerland. https://doi.org/10.3390/sym12091402.
@article{osti_1650200,
title = {On the Remarkable Superconductivity of FeSe and Its Close Cousins},
author = {Kreisel, Andreas and Hirschfeld, Peter J. and Andersen, Brian M.},
abstractNote = {Emergent electronic phenomena in iron-based superconductors have been at the forefront of condensed matter physics for more than a decade. Much has been learned about the origins and intertwined roles of ordered phases, including nematicity, magnetism, and superconductivity, in this fascinating class of materials. In recent years, focus has been centered on the peculiar and highly unusual properties of FeSe and its close cousins. This family of materials has attracted considerable attention due to the discovery of unexpected superconducting gap structures, a wide range of superconducting critical temperatures, and evidence for nontrivial band topology, including associated spin-helical surface states and vortex-induced Majorana bound states. Here, we review superconductivity in iron chalcogenide superconductors, including bulk FeSe, doped bulk FeSe, FeTe1–xSex, intercalated FeSe materials, and monolayer FeSe and FeTe1–xSex on SrTiO3. We focus on the superconducting properties, including a survey of the relevant experimental studies, and a discussion of the different proposed theoretical pairing scenarios. In the last part of the paper, we review the growing recent evidence for nontrivial topological effects in FeSe-related materials, focusing again on interesting implications for superconductivity.},
doi = {10.3390/sym12091402},
journal = {Symmetry},
number = 9,
volume = 12,
place = {Switzerland},
year = {Sun Aug 23 00:00:00 EDT 2020},
month = {Sun Aug 23 00:00:00 EDT 2020}
}
https://doi.org/10.3390/sym12091402
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