Quantum critical point in high-temperature superconductors

Details Quantum critical point in high-temperature superconductors Quantum critical point in high-temperature superconductors

2009-02-15

arxiv.org/abs/0902.2557v1

Phys. Lett. A 373, 686 (2009)

Physics

Condensed Matter

Superconductivity

9 pages, 8 figures

Scientific paper

10.1016/j.physleta.2008.12.022

Recently, in high-T_c superconductors (HTSC), exciting measurements have been performed revealing their physics in superconducting and pseudogap states and in normal one induced by the application of magnetic field, when the transition from non-Fermi liquid to Landau Fermi liquid behavior occurs. We employ a theory, based on fermion condensation quantum phase transition which is able to explain facts obtained in the measurements. We also show, that in spite of very different microscopic nature of HTSC, heavy-fermion metals and 2D 3He, the physical properties of these three classes of substances are similar to each other.

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