Critical behavior of layered superconducting films in a parallel magnetic field
J. P. Rodriguez
DOI 10.1103/PhysRevB.58.944 · Physical Review B
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Abstract
The equilibrium magnetization for layered superconducting films that experience a nonzero component H∥ of magnetic field applied parallel to the layers is computed at temperatures and at perpendicular field components in the vicinity of the decoupling transition. A fermion analogy is exploited for this purpose, whereby it is found that the parallel magnetization shows an anomalous H∥−1 tail at high fields due to entropic fluctuations of the (parallel) lattice of Josephson vortices. A collective pinning effect is also identified for c-axis transport limited by a single planar defect oriented parallel to both c and to the applied magnetic field.
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