Effective Dimensionality Change of Fluctuations in Superconductors in a Magnetic Field
Patrick A. LeeDepartment of Physics, Yale University, New Haven, Connecticut 06520Subodh R. ShenoyDepartment of Physics, Yale University, New Haven, Connecticut 06520
1972en
ABI
Abstract
In an external magnetic field and near the transition temperature ${T}_{c2}(H)$, bulk and thin-film superconductors exhibit an effective change to one- and zero-dimensional behavior in their fluctuation specific heats, which diverge like ${(\frac{T}{{T}_{c2}}\ensuremath{-}1)}^{\ensuremath{-}\frac{3}{2}}$ and ${(\frac{T}{{T}_{c2}}\ensuremath{-}1)}^{\ensuremath{-}2}$, respectively. This enhancement effect is accompanied by a field-dependent broadening of the critical region.
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