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The gap amplification at a "shape resonance" in a superlattice of quantum stripes: a mechanism for high Tc
Andrea Perali, Antonio Bianconi, Alessandra Lanzara +1
The amplification of the superconducting critical temperature Tc from the low temperature range in homogeneous 2D planes (Tc<23 K) to the high temperature range (23 K<Tc<150 K) in…
Bond stretching phonon softening and angle-resolved photoemission kinks in optimally doped Bi2Sr1.6La0.4Cu2O6 superconductors
J. Graf, M. d'Astuto, C. Jozwiak +7
We report the first measurement of the optical phonon dispersion in optimally doped single layer Bi2Sr1.6La0.4Cu2O6+delta using inelastic x-ray scattering. We found a strong soften…
Unusual oxygen isotope effects in cuprates -- importance of doping
G. -H. Gweon, T. Sasagawa, H. Takagi +2
A recent angle resolved photoelectron spectroscopy (ARPES) study by Douglas et al. \cite {dessau-comment} on oxygen isotope exchanged Bi_2Sr_2CaCu_2O superconductors report…
Strong and complex electron-lattice correlation in optimally doped BiSrCaCuO
G. -H. Gweon, S. Y. Zhou, M. C. Watson +3
We discuss the nature of electron-lattice interaction in optimally doped BiSrCaCuO samples, using isotope effect (IE) in angle resolved photoemission spectrosco…
Universal waterfalls-like feature in the spectral function of high temperature superconductors
J. Graf, G. -H. Gweon, A. Lanzara
By performing high resolution angle resolved photoemission spectroscopy (ARPES) experiments on four different families of p-type cuprates, over an energy range much bigger than inv…
Elastic Scattering Susceptibility of the High Temperature Superconductor Bi2Sr2CaCu2O8+x: A Comparison between Real and Momentum Space Photoemission Spectroscopies
K. McElroy, G. -H. Gweon, S. Y. Zhou +7
The joint density of states (JDOS) of Bi2Sr2CaCu2O8+x is calculated by evaluating the autocorrelation of the single particle spectral function A(k,omega) measured from angle resolv…