On the Remarkable Superconductivity of FeSe and Its Close Cousins
Publikation: Bidrag til tidsskrift › Review › Forskning › fagfællebedømt
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On the Remarkable Superconductivity of FeSe and Its Close Cousins. / Kreisel, Andreas; Hirschfeld, Peter J.; Andersen, Brian M.
I: Symmetry, Bind 12, Nr. 9, 1402, 01.09.2020.Publikation: Bidrag til tidsskrift › Review › Forskning › fagfællebedømt
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TY - JOUR
T1 - On the Remarkable Superconductivity of FeSe and Its Close Cousins
AU - Kreisel, Andreas
AU - Hirschfeld, Peter J.
AU - Andersen, Brian M.
PY - 2020/9/1
Y1 - 2020/9/1
N2 - 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.
AB - 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.
KW - iron-based superconductivity
KW - unconventional superconductivity
KW - magnetism
KW - nematicity
KW - superconducting pairing
KW - strongly correlated electrons
KW - multiband superconductivity
KW - topological superconductivity
KW - Majorana zero modes
KW - HIGH-TEMPERATURE SUPERCONDUCTIVITY
KW - IRON-BASED SUPERCONDUCTORS
KW - S-WAVE SUPERCONDUCTIVITY
KW - SINGLE-LAYER
KW - ELECTRONIC-STRUCTURE
KW - MAJORANA FERMIONS
KW - PHASE-DIAGRAM
KW - SPIN FLUCTUATIONS
KW - MAGNETIC ORDER
KW - CRITICAL-POINT
U2 - 10.3390/sym12091402
DO - 10.3390/sym12091402
M3 - Review
VL - 12
JO - Symmetry: Culture and Science
JF - Symmetry: Culture and Science
SN - 0865-4824
IS - 9
M1 - 1402
ER -
ID: 252298264