381 citations · 5.2k across the 138 of their papers we have counts for
10 papers · 1 filter
Quantum phase transition of correlated iron-based superconductivity in LiFeCoAs
Jia-Xin Yin, Songtian S. Zhang, Guangyang Dai +25
The interplay between unconventional Cooper pairing and quantum states associated with atomic scale defects is a frontier of research with many open questions. So far, only a few o…
Variation of shear moduli across superconducting phase transitions
Dimitri Labat, Panagiotis Kotetes, Brian M. Andersen +1
We study how shear moduli of a correlated metal change across superconducting phase transitions. Using a microscopic theory we explain why for most classes of superconductors this…
Effects of spin-orbit coupling on spin-fluctuation induced pairing in iron-based superconductors
Daniel D. Scherer, Brian M. Andersen
We perform a theoretical study of the leading pairing instabilities and the associated superconducting gap functions within the spin-fluctuation mediated pairing scenario in the pr…
Pairing in the Two-Dimensional Hubbard Model from Weak to Strong Coupling
Astrid T. Rømer, Thomas A. Maier, Andreas Kreisel +3
The Hubbard model is the simplest model that is believed to exhibit superconductivity arising from purely repulsive interactions, and has been extensively applied to explore a vari…
Visualization of local magnetic moments emerging from impurities in the Hund's metal states of FeSe
Sang Yong Song, J. H. J. Martiny, A. Kreisel +2
Understanding the origin of the magnetism of high temperature superconductors is crucial for establishing their unconventional pairing mechanism. Recently, theory predicts that FeS…
Competing Electronic Phases near the Onset of Superconductivity in Hole-doped SrFe2As2
L. Wang, M. He, D. D. Scherer +6
An intriguingly complex phase diagram of Na-doped SrFe2As2 is uncovered using high-resolution thermal-expansion, magnetization and heat-capacity measurements. The detailed temperat…
Effects of spin-orbit coupling on the neutron spin resonance in iron-based superconductors
Daniel D. Scherer, Brian M. Andersen
The so-called neutron spin resonance consists of a prominent enhancement of the magnetic response at a particular energy and momentum transfer upon entering the superconducting sta…
Disorder-Induced Electronic Nematicity
Daniel Steffensen, Panagiotis Kotetes, Indranil Paul +1
We expose the theoretical mechanisms underlying disorder-induced nematicity in systems exhibiting strong fluctuations or ordering in the nematic channel. Our analysis consists of a…
Anisotropic spin fluctuations in detwinned FeSe
Tong Chen, Youzhe Chen, Andreas Kreisel +15
Superconductivity in FeSe emerges from a nematic phase that breaks four-fold rotational symmetry in the iron plane. This phase may arise from orbital ordering, spin fluctuations, o…
Knight Shift and Leading Superconducting Instability From Spin Fluctuations in Sr2RuO4
A. T. Rømer, D. D. Scherer, I. M. Eremin +2
Recent nuclear magnetic resonance studies [A. Pustogow {\it et al.}, arXiv:1904.00047] have challenged the prevalent chiral triplet pairing scenario proposed for SrRuO. To…