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Spin fluctuations sufficient to mediate superconductivity in nickelates
DOI:
10.1103/PhysRevB.109.235126
Authors:
Paul
Worm
(TU Wien)
,
Qisi
Wang
(Universität Zürich; The Chinese University of Hong Kong;)
,
Motoharu
Kitatani
(University of Hyogo; RIKEN Center for Emergent Matter Sciences (CEMS))
,
Izabela
Bialo
(Universität Zürich; AGH University of Krakow)
,
Qiang
Gao
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)
,
Xiaolin
Ren
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)
,
Jaewon
Choi
(Diamond Light Source)
,
Diana
Csontosová
(Masaryk University)
,
Ke-Jin
Zhou
(Diamond Light Source)
,
Xingjiang
Zhou
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)
,
Zhihai
Zhu
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences)
,
Liang
Si
(Northwest University; TU Wien)
,
Johan
Chang
(Universität Zürich)
,
Jan M.
Tomczak
(King's College London; TU Wien)
,
Karsten
Held
(TU Wien)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Physical Review B
, VOL 109
State:
Published (Approved)
Published:
June 2024
Diamond Proposal Number(s):
30189
Abstract: Infinite-layer nickelates show high-temperature superconductivity, and the experimental phase diagram agrees well with the one simulated within the dynamical vertex approximation (DΓA). Here, we compare the spin-fluctuation spectrum behind these calculations to resonant inelastic x-ray scattering experiments. The overall agreement is good. This independent cross validation of the strength of spin fluctuations strongly supports the scenario, advanced by DΓA, that spin fluctuations are the mediator of the superconductivity observed in nickelates.
Journal Keywords: High-temperature superconductors; Nickelates; Strongly correlated systems; Hubbard model; Resonant inelastic x-ray scattering
Subject Areas:
Materials,
Physics
Instruments:
I21-Resonant Inelastic X-ray Scattering (RIXS)
Added On:
19/06/2024 12:02
Discipline Tags:
Superconductors
Quantum Materials
Physics
Hard condensed matter - structures
Materials Science
Technical Tags:
Scattering
Resonant Inelastic X-ray Scattering (RIXS)