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- SLAC National Accelerator LaboratoryUS40 papers
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18 papers · 1 filter
A route to high temperature superconductivity in composite systems
E. Berg, D. Orgad, S. A. Kivelson
Apparently, some form of local superconducting pairing persists to temperatures well above the maximum observed in underdoped cuprates, \textit{i.e.} is suppressed due…
Superconductivity-Induced Self-Energy Evolution of the Nodal Electron of Optimally-Doped Bi2212
W. S. Lee, W. Meevasana, S. Johnston +7
The temperature dependent evolution of the renormalization effect in optimally-doped Bi2212 along the nodal direction has been studied via angle-resolved photoemission spectroscopy…
Doping-dependent Phase Diagram of LaO{\it M}As ({\it M}=V--Cu) and Electron-type Superconductivity near Ferromagnetic Instability
Gang Xu, Wenmei Ming, Yugui Yao +3
By first-principles calculations, we present a doping-dependent phase diagram of LaO{\it M}As ({\it M}=V--Cu) family. It is characterized as antiferromagnetic semiconductor around…
Abrupt Onset of Second Energy Gap at Superconducting Transition of Underdoped Bi2212
W. S. Lee, I. M. Vishik, K. Tanaka +6
The superconducting gap - an energy scale tied to the superconducting phenomena-opens on the Fermi surface at the superconducting transition temperature (TC) in conventional BCS su…
Doping evolution of the electronic structure in the single-layer cuprates BiSrLaCuO: Comparison with other single-layer cuprates
M. Hashimoto, T. Yoshida, H. Yagi +9
We have performed angle-resolved photoemission and core-level x-ray photoemission studies of the single-layer cuprate BiSrLaCuO (Bi2201) and revealed the do…
Stability of nodal quasi-particles in superconductors with coexisting orders
E. Berg, C-C. Chen, S. A. Kivelson
We establish a condition for the perturbative stability of zero energy nodal points in the quasi-particle spectrum of superconductors in the presence of coexisting \textit{commensu…