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.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/123983
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