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Frustrated Magnetism from Local Moments in FeSe
Harrison Ruiz, Yao Wang, Brian Moritz +3
We investigate properties of a spin-1 Heisenberg model with extended and biquadratic interactions, which captures crucial aspects of the low energy physics in FeSe. While we show t…
Fermi surface reconstruction in electron-doped cuprates without antiferromagnetic long-range order
J. -F. He, C. R. Rotundu, M. S. Scheurer +12
Fermi surface (FS) topology is a fundamental property of metals and superconductors. In electron-doped cuprate Nd2-xCexCuO4 (NCCO), an unexpected FS reconstruction has been observe…
Three dimensional collective charge excitations in electron-doped cuprate superconductors
M. Hepting, L. Chaix, E. W. Huang +17
High temperature cuprate superconductors consist of stacked CuO2 planes, with primarily two dimensional electronic band structures and magnetic excitations, while superconducting c…
Spectroscopic Signature of Oxidized Oxygen States in Peroxides
Zengqing Zhuo, Chaitanya Das Pemmaraju, John Vinson +12
Recent debates on the oxygen redox behaviors in battery electrodes have triggered a pressing demand for the reliable detection and understanding of non-divalent oxygen states beyon…
Rapid change of superconductivity and electron-phonon coupling through 19% doping in Bi2212
Yu He, Makoto Hashimoto, Dongjoon Song +12
Electron-boson coupling plays a key role in superconductivity for many systems. However, in copper-based high-temperature () superconductors, its relation to superconductivity…
Theoretical Understanding of Photon Spectroscopies in Correlated Materials In and Out of Equilibrium
Yao Wang, Martin Claassen, Chaitanya Das Pemmaraju +3
Photon-based spectroscopies have had a significant impact on both fundamental science and applications by providing an efficient approach to investigate the microscopic physics of…