We investigate the effect of electronic mass renormalization due to the coupling of electrons to an Einstein phonon in the presence of a Van Hove singularity in the density of states, resulting from a saddle point in the bare electronic spectrum. We Show that an enhancement of mass anisotropy is produced in a wide region of parameters of our model.
Enhancement of mass anisotropy in an electron-phonon coupled model close to a Van Hove singularity / Caprara, Sergio; V., Del Prete. - In: JOURNAL OF PHYSICS. CONDENSED MATTER. - ISSN 0953-8984. - 9:(1997), pp. 10195-10202. [10.1088/0953-8984/9/46/017]
Enhancement of mass anisotropy in an electron-phonon coupled model close to a Van Hove singularity
CAPRARA, SERGIO;
1997
Abstract
We investigate the effect of electronic mass renormalization due to the coupling of electrons to an Einstein phonon in the presence of a Van Hove singularity in the density of states, resulting from a saddle point in the bare electronic spectrum. We Show that an enhancement of mass anisotropy is produced in a wide region of parameters of our model.File allegati a questo prodotto
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
