TY - JOUR
T1 - Suppression of superconductivity in the Hubbard model by buckling and breathing phonons
AU - MacRidin, Alexandru
AU - Moritz, Brian
AU - Jarrell, M.
AU - Maier, Thomas
PY - 2012/11/28
Y1 - 2012/11/28
N2 - We study the effect of buckling and breathing phonons, relevant for cuprate superconductors, on the d-wave superconductivity in the two-dimensional Hubbard model by employing dynamical cluster Monte Carlo calculations. The interplay of electronic correlations and the electron-phonon interaction produces two competing effects: an enhancement of the effective d-wave pairing interaction, which favors d-wave superconductivity, and a strong renormalization of the single-particle propagator, which suppresses superconductivity. In the region of the parameter space relevant for cuprate superconductors, we find that the buckling and the breathing phonons suppress the superconductivity.
AB - We study the effect of buckling and breathing phonons, relevant for cuprate superconductors, on the d-wave superconductivity in the two-dimensional Hubbard model by employing dynamical cluster Monte Carlo calculations. The interplay of electronic correlations and the electron-phonon interaction produces two competing effects: an enhancement of the effective d-wave pairing interaction, which favors d-wave superconductivity, and a strong renormalization of the single-particle propagator, which suppresses superconductivity. In the region of the parameter space relevant for cuprate superconductors, we find that the buckling and the breathing phonons suppress the superconductivity.
UR - http://www.scopus.com/inward/record.url?scp=84868306231&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/24/47/475603
DO - 10.1088/0953-8984/24/47/475603
M3 - Article
AN - SCOPUS:84868306231
SN - 0953-8984
VL - 24
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 47
M1 - 475603
ER -