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Properties of high-TC copper oxides from the nearly-free-electron model

Published in Physical Review. B, Condensed Matter. 2007, vol. 76, no. 14, p. 140504R
Abstract The generic band structure of high-TC copper oxides is simulated by the nearly-free-electron model in two dimensions with parameters from ab-initio linear muffin-tin orbital calculations. Interaction between phonons and spin waves will cause potential modulations, and pseudogaps and the strength of the modulations, the wavelengths, and the doping are all related. A Fermi-surface “arc” is found for dynamic spin and phonon waves. The confinement of superconductivity between two limiting dopings can be a result of competition with the pseudogap at low doping and weak coupling at high doping.
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Research group Groupe Giamarchi
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JARLBORG, Thomas N. Properties of high-TC copper oxides from the nearly-free-electron model. In: Physical Review. B, Condensed Matter, 2007, vol. 76, n° 14, p. 140504R. https://archive-ouverte.unige.ch/unige:35632

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Deposited on : 2014-04-14

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