Superconducting Instabilities in Strongly Correlated Infinite-Layer Nickelates
Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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Superconducting Instabilities in Strongly Correlated Infinite-Layer Nickelates. / Kreisel, Andreas; Andersen, Brian M.; Romer, Astrid T.; Eremin, Ilya M.; Lechermann, Frank.
I: Physical Review Letters, Bind 129, Nr. 7, 077002, 11.08.2022.Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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TY - JOUR
T1 - Superconducting Instabilities in Strongly Correlated Infinite-Layer Nickelates
AU - Kreisel, Andreas
AU - Andersen, Brian M.
AU - Romer, Astrid T.
AU - Eremin, Ilya M.
AU - Lechermann, Frank
PY - 2022/8/11
Y1 - 2022/8/11
N2 - The discovery of superconductivity in infinite-layer nickelates has added a new family of materials to the fascinating growing class of unconventional superconductors. By incorporating the strongly correlated multiorbital nature of the low-energy electronic degrees of freedom, we compute the leading super-conducting instability from magnetic fluctuations relevant for infinite-layer nickelates. Specifically, by properly including the doping dependence of the Ni dx2-y2 and dz2 orbitals as well as the self-doping band, we uncover a transition from d-wave pairing symmetry to nodal s & PLUSMN; superconductivity, driven by strong fluctuations in the dz2-dominated orbital states. We discuss the properties of the resulting superconducting condensates in light of recent tunneling and penetration depth experiments probing the detailed superconducting gap structure of these materials.
AB - The discovery of superconductivity in infinite-layer nickelates has added a new family of materials to the fascinating growing class of unconventional superconductors. By incorporating the strongly correlated multiorbital nature of the low-energy electronic degrees of freedom, we compute the leading super-conducting instability from magnetic fluctuations relevant for infinite-layer nickelates. Specifically, by properly including the doping dependence of the Ni dx2-y2 and dz2 orbitals as well as the self-doping band, we uncover a transition from d-wave pairing symmetry to nodal s & PLUSMN; superconductivity, driven by strong fluctuations in the dz2-dominated orbital states. We discuss the properties of the resulting superconducting condensates in light of recent tunneling and penetration depth experiments probing the detailed superconducting gap structure of these materials.
U2 - 10.1103/PhysRevLett.129.077002
DO - 10.1103/PhysRevLett.129.077002
M3 - Letter
C2 - 36018682
VL - 129
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 7
M1 - 077002
ER -
ID: 318433988