Fermi surfaces, electron-hole asymmetry and correlation kink in a three-dimensional Fermi liquid LaNiO$_3$

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dc.creatorEguchi, R.
dc.creatorChainani, A.
dc.creatorTaguchi, M.
dc.creatorMatsunami, M.
dc.creatorIshida, Y.
dc.creatorHoriba, K.
dc.creatorSenba, Y.
dc.creatorOhashi, H.
dc.creatorShin, S.
dc.date2009-03-09
dc.date.accessioned2026-07-07T12:58:55Z
dc.date.available2026-07-07T12:58:55Z
dc.descriptionWe report the three-dimensional (3-D) momentum-resolved soft x-ray photoemission spectroscopy of the Fermi liquid LaNiO$_3$. The out-of-plane and in-plane cuts of the 3-D electron- and hole-Fermi surfaces (FSs) are observed by energy- and angle- dependent photoemission measurements. The energy bands forming the electron FS suggest an $ω^2$ dependence of the imaginary part of the self-energy and a `correlation kink' at an energy scale of 0.25 eV. In contrast, the bands which form nesting character hole FSs do not show kinks and match local density approximation calculations. The results indicate a momentum-dependent mass renormalization, leading to electron-hole asymmetry in strongly correlated LaNiO$_3$.
dc.description6 pages, 5 figures, Physical Review B, to be published
dc.identifierhttps://arxiv.org/abs/0903.1487
dc.identifierhttp://arxiv.org/abs/0903.1487
dc.identifierPhys. Rev. B 79, 115122 (2009).
dc.identifierdoi:10.1103/PhysRevB.79.115122
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225410
dc.subjectStrongly Correlated Electrons
dc.titleFermi surfaces, electron-hole asymmetry and correlation kink in a three-dimensional Fermi liquid LaNiO$_3$
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