100 citations · 283 across the 37 of their papers we have counts for
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Size Effects in the Ginzburg-Landau Theory
Miguel C. N. Fiolhais, Joseph L. Birman
The Ginzburg-Landau theory is analyzed in the case of small dimension superconductors, a couple of orders of magnitude above the coherence length, where the theory is still valid b…
Gauge Invariance and Spontaneous Symmetry Breaking in Two-Gap Superconductors
Miguel C. N. Fiolhais, Joseph L. Birman
The gauge symmetry of the Ginzburg-Landau theory for two-gap superconductors is analyzed in this letter. We argue that the existence of two different phases, associated with the tw…
Phenomenological correlations in high-temperature superconductors
Miguel C. N. Fiolhais, Joseph L. Birman
An interpretation of the quadratic parameter of the Ginzburg-Landau theory of superconductivity is presented in this paper. The negative term in the potential, which allows the spo…
Theory of coexistence of superconductivity and ferroelectricity
Y. Krivolapov, A. Mann, Joseph L. Birman
A new investigation of the coexistence and competition of ferroelectricity and superconductivity is reported. In particular we show that the starting Hamiltonian of a previous stud…
On a theoretical model for d-wave to mixed s- and d-wave transition in cuprate superconductors
Y. Krivolapov, A. Mann, Joseph L. Birman
A U(3) model proposed by Iachello for superconductivity in cuprate materials is analyzed. The model consists of s and d pairs (approximated as bosons) in a two-dimensional Fermi sy…