Linear criterion for an upper bound on the Bardeen-Cooper-Schrieffer critical temperature
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DOI: 10.1063/5.0230179
Abstract: Since Bardeen-Cooper-Schrieffer theory of superconductivity is non-linear, it is difficult to study superconducting properties analytically. There is a more tractable linear criterion which determines a temperature Tl below which the system is superconducting. Here, we… read more here.
Keywords: temperature; linear criterion; bardeen cooper; cooper schrieffer ... See more keywords
Mechanisms of screening or enhancing the pseudogap throughout the two-band Bardeen-Cooper-Schrieffer to Bose-Einstein condensate crossover
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DOI: 10.1103/physrevb.102.220504
Abstract: We demonstrate the rise-and-fall of multiple pseudogaps in the Bardeen-Cooper-Schrieffer-Bose-Einstein-condensation (BCS-BEC) crossover in two-band fermionic systems having different pairing strengths in the deep band and in the shallow band. The striking features of this phenomenon… read more here.
Keywords: bose einstein; cooper schrieffer; schrieffer bose; pseudogap ... See more keywords
Evidence for the coexistence of time-reversal symmetry breaking and Bardeen-Cooper-Schrieffer-like superconductivity in La7Pd3
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DOI: 10.1103/physrevb.103.024507
Abstract: Time-reversal symmetry breaking (TRSB) with a Bardeen-Cooper-Schrieffer (BCS) -like superconductivity occurs in a small, but growing number of noncentrosymmetric (NCS) materials, although the mechanism is poorly understood. We present heat capacity, magnetization, resistivity, and muon… read more here.
Keywords: cooper schrieffer; reversal symmetry; symmetry breaking; bardeen cooper ... See more keywords
Bardeen-Cooper-Schrieffer interaction as an infinite-range Penson-Kolb pairing mechanism
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DOI: 10.1103/physrevb.109.134509
Abstract: We demonstrate that the well-known $(k\uparrow, -k\downarrow)$ Bardeen-Cooper-Schrieffer interaction, when considered in real space, is equivalent to an infinite-range Penson-Kolb pairing mechanism coexisting with an attractive Hubbard term. Driven by this discovery and aiming at… read more here.
Keywords: bardeen cooper; range penson; schrieffer interaction; infinite range ... See more keywords