Quantum fluctuations of vortices in Josephson-coupled superconductors

Lev Boulaevskii; M. P. Malley

doi:10.1117/12.179152

29 June 1994 Quantum fluctuations of vortices in Josephson-coupled superconductors

Lev Boulaevskii, M. P. Malley

Proceedings Volume 2157, Superconducting Superlattices and Multilayers; (1994) https://doi.org/10.1117/12.179152
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

The effect of quantum fluctuations of vortices on the low temperature specific heat and reversible magnetization in the mixed state in highly anisotropic layered superconductors is discussed. For reversible magnetization, M, the change of slope in the dependence of M vs InB, observed in Bi(2:2:1:2) single crystals, is explained. In the mean field approach this slope should be almost B independent. We show that for magnetization quantum fluctuations are important at all temperatures except in a narrow region near T_c. The specific heat due to the vortex fluctuation contribution is predicted to be linear in T at low T and to increase logarithmically with B.

Citation Download Citation

Lev Boulaevskii and M. P. Malley "Quantum fluctuations of vortices in Josephson-coupled superconductors", Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); https://doi.org/10.1117/12.179152

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