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Superconductivity and topological Fermi surface transitions in electron-doped cuprates near optimal doping
Tanmoy Das, R. S. Markiewicz, A. Bansil
We discuss evolution of the Fermi surface (FS) topology with doping in electron doped cuprates within the framework of a one-band Hubbard Hamiltonian, where antiferromagnetism and…
Decorrelation of samples in Quantum Monte Carlo calculations and scaling of autocorrelation time in Li and HO clusters
D. Nissenbaum, B. Barbiellini, A. Bansil
We have investigated decorrelation of samples in Quantum Monte Carlo (QMC) ground-state energy calculations for large Li and HO nanoclusters. Binning data as a way of elimina…
Anisotropic softening of collective charge modes in the vicinity of critical doping in a doped Mott insulator
Y. W. Li, D. Qian, L. Wray +9
Momentum resolved inelastic resonant x-ray scattering is used to map the evolution of charge excitations over a large range of energies, momenta and doping levels in the electron d…
Paramagnon-induced dispersion anomalies in the cuprates
R. S. Markiewicz, S. Sahrakorpi, A. Bansil
We report the self-energy associated with RPA magnetic susceptibility in the hole-doped Bi_2Sr_2CuO_6 (Bi2201) and the electron-doped Nd_{2-x}Ce_xCuO_4 (NCCO) in the overdoped regi…
Dispersion anomalies induced by the low-energy plasmon in the cuprates
R. S. Markiewicz, A. Bansil
We discuss the characteristic effects of the electron plasmon interaction resulting from the ~ 1 eV plasmon, which is a universal feature in the cuprates. Using the framework of a…