QUASIPARTICLE SCATTERING PROCESSES IN A MODEL FERMI LIQUID: 1T-TiTe2

L. Perfetti, C. Rojas, A. Reginelli, L. Gavioli, H. Berger, G. Margaritondo and M. Grioni
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L. Perfetti: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland
C. Rojas: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland
A. Reginelli: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland
L. Gavioli: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland
H. Berger: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland
G. Margaritondo: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland
M. Grioni: Institut de Physique Appliquee, Ecole Polytechnique Fédérale, CH-1015 Lausanne, Switzerland

Surface Review and Letters (SRL), 2002, vol. 09, issue 02, 1117-1119

Abstract: We performed angle-resolved photoelectron spectroscopy (ARPES) and resistivity measurements on the layered metal1T-TiTe2. We determined the quasiparticle dispersion and lifetime. In particular, we could characterize and separately evaluate the effects of the electron–electron and electron–phonon interactions on the experimental spectra. The good correlation between transport and spectroscopic scattering rates indicates that this material behaves as a model Fermi liquid system.

Date: 2002
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DOI: 10.1142/S0218625X02003603

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