### Session W10: Focus Session: Hybrid Magnetic-Superconducting Systems III

2:30 PM–5:18 PM, Thursday, March 13, 2008
Morial Convention Center Room: RO8

Chair: Ilya Vekhter, Louisiana State University

Abstract ID: BAPS.2008.MAR.W10.10

### Abstract: W10.00010 : Paramagnetic Intrinsic Meissner Effect in Layered Superconductors

4:42 PM–4:54 PM

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#### Author:

Andrei Lebed
(Dept. of Physics, University of Arizona)

Free energy of a quasi-two-dimensional superconductor with a coherence length perpendicular to the conducting layers being less than an inter-layer distance is calculated. The free energy is shown to differ from that in the textbook Lawerence-Doniach model at high fields, where the Meissner currents are found to create an unexpected positive magnetic moment due to shrinking of the Cooper pairs sizes'' by a magnetic field. This unique phenomenon - paramagnetic intrinsic Meissner effect (PIME) in a bulk [1] - is suggested to detect by measuring in-plane magnetization and torque in layered organic and high-Tc superconductors as well as in superconducting superlattices. \newline \newline [1] A.G. Lebed, Physical Review Letters, submitted.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.MAR.W10.10