Observation of particle hole asymmetry and phonon excitations in non-Fermi liquid systems: A high-resolution photoemission study of ruthenates

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dc.creatorMaiti, Kalobaran
dc.creatorSingh, Ravi Shankar
dc.creatorMedicherla, V. R. R.
dc.date2006-04-28
dc.date2007-04-03
dc.date.accessioned2026-07-07T07:54:38Z
dc.date.available2026-07-07T07:54:38Z
dc.descriptionWe investigate the temperature evolution of the electronic states in the vicinity of the Fermi level of a non-Fermi liquid (NFL) system, CaRuO3 using ultra high-resolution photoemission spectroscopy; isostructural SrRuO3 exhibiting Fermi liquid behavior despite similar electron interaction parameters as that of CaRuO3, is used as a reference. High-energy resolution in this study helps to reveal particle-hole asymmetry in the excitation spectra of CaRuO3 in contrast to that in SrRuO3. In addition, we observe signature of phonon excitations in the photoemission spectra of CaRuO3 at finite temperatures while these are weak in SrRuO3.
dc.description4 pages including 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0604648
dc.identifierhttp://arxiv.org/abs/cond-mat/0604648
dc.identifierEurophys. Lett. 78 (2007) 17002
dc.identifierdoi:10.1209/0295-5075/78/17002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126683
dc.subjectStrongly Correlated Electrons
dc.titleObservation of particle hole asymmetry and phonon excitations in non-Fermi liquid systems: A high-resolution photoemission study of ruthenates
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