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cond-mat.str-el2006★ 18 cited
Isotope effects in the Hubbard-Holstein model within dynamical mean-field theory
P. Paci, M. Capone, E. Cappelluti +2
We study the isotope effects arising from the coupling of correlated electrons with dispersionless phonons by considering the Hubbard-Holstein model at half-filling within the dyna…
cond-mat.str-el2004
Polaronic and nonadiabatic phase diagram from anomalous isotope effects
P. Paci, M. Capone, E. Cappelluti +3
Isotope effects (IEs) are powerful tool to probe directly the dependence of many physical properties on the lattice dynamics. In this paper we invenstigate the onset of anomalous I…