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ЖУРНАЛЫ // Письма в Журнал экспериментальной и теоретической физики // Архив

Письма в ЖЭТФ, 2003, том 77, выпуск 12, страницы 803–807 (Mi jetpl2845)

Эта публикация цитируется в 2 статьях

Quasiparticles in the superconducting state of high-T$_c$ metals

M. Ya. Amusiaab, V. R. Shaginyanac

a Racah Institute of Physics, Hebrew University
b Ioffe Physico-Technical Institute, Russian Academy of Sciences, St. Petersburg
c B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences

Аннотация: We consider the behavior of quasiparticles in the superconducting state of high-$T_c$ metals within the framework of the theory of superconducting state based on the fermion condensation quantum phase transition. We show that the behavior coincides with the behavior of Bogoliubov quasiparticles, whereas the maximum value of the superconducting gap and other exotic properties are determined by the presence of the fermion condensate. If at low temperatures the normal state is recovered by the application of a magnetic field suppressing the superconductivity, the induced state can be viewed as Landau Fermi liquid. These observations are in good agreement with recent experimental facts.

PACS: 74.20.-z, 74.25.Fy, 74.72.-h

Поступила в редакцию: 06.05.2003

Язык публикации: английский


 Англоязычная версия: Journal of Experimental and Theoretical Physics Letters, 2003, 77:12, 671–675

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