A superconductor in a weak magnetic field expels the external magnetic field, but a superconductor in a strong magnetic field sometimes concentrates magnetic lines rather than loses them, UA physicist Andrei Lebed has discovered.
The Meissner effect in wikipedia
“Paramagnetic Intrinsic Meissner Effect in Layered Superconductors” by Andrei Lebed
FURTHER READING
Andrei Lebed had previous work includes work on unconventional superconductors
Unconventional superconductors are materials that display superconductivity but that do not conform to BCS theory and Nikolay Bogolyubov theory or its extensions.
The first unconventional triplet superconductor, organic material (TMTSF)2PF6, was discovered by Denis Jerome and Klaus Bechgaard in 1979. Recent experimental works by Paul Chaikin’s and Michael Naughton’s groups as well as theoretical analysis of their data by Andrei Lebed have firmly confirmed unconventional triplet nature of superconducting pairing in (TMTSF)2X (X=PF6, ClO4, …) organic materials
Andrei Lebed on University of Arizona physics department faculty list
Research interests are on theory of low-dimensional conductors and superconductors. In particular, these include studies of unconventional triplet, singlet d-wave, and LOFF superconducting order parameters in organic and high-Tc materials, unique properties of layered organic compounds in high and ultrahigh magnetic fields, superconducting phases stabilizing by a magnetic field, and properties related to changes of effective space dimensionality for some one-body and many-body phenomena in a magnetic field. These works are closely related to experiments conducting in Princeton University, Boston College, Harvard University, National High Magnetic Field Lab, Los Alamos National Lab, and some other institutions.
List of other papers by Andrei Lebed
2006 article discussing the effects of superstrong magnetic fields on superconductors
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