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5 papers · 2 filters
Microscopic mechanism for fluctuating pair density wave
Chandan Setty, Laura Fanfarillo, P. J. Hirschfeld
In weakly coupled BCS superconductors, only electrons within a tiny energy window around the Fermi energy, , form Cooper pairs. This may not be the case in strong coupling sup…
Superconducting dome in ferroelectric-type materials from soft mode instability
Chandan Setty, Matteo Baggioli, Alessio Zaccone
We present a minimal theory of superconductivity enhancement in ferroelectric-type materials. Simple expressions for the optical mode responsible for the soft mode transition are a…
Inherited topological superconductivity in two-dimensional Dirac semimetals
Chiu Fan Bowen Lo, Hoi Chun Po, Andriy H. Nevidomskyy
Under what conditions does a superconductor inherit topologically protected nodes from its parent normal state? In the context of Weyl semimetals with broken time-reversal symmetry…
Spin-excitation anisotropy in the nematic state of detwinned FeSe
Xingye Lu, Wenliang Zhang, Yi Tseng +11
The origin of the electronic nematicity in FeSe is one of the most important unresolved puzzles in the study of iron-based superconductors. In both spin- and orbital-nematic models…
Flatband-Induced Itinerant Ferromagnetism in RbCoSe
Jianwei Huang, Zhicai Wang, Hongsheng Pang +8
CoSe (=K,Rb,Cs) is a homologue of the iron-based superconductor, FeSe. From a comprehensive study of RbCoSe via measurements of magnetization, tran…