• J P Carbotte

      Articles written in Bulletin of Materials Science

    • Properties of combined phonon-high-energy boson mechanism

      R Akis J P Carbotte

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      We consider the properties of a superconductor with a joint mechanism. One involves, otherwise unspecified, high-energy excitations and is modelled with a BCS pairing potential. The other is of low energy, presumably involving phonons. When the second contribution is significant, the resulting properties can differ greatly from BCS, and for most but not all properties, in a direction opposite to that expected for conventional strong coupling systems.

    • Upper critical field of aD-wave superconductor stabilized by antiferromagnetic fluctuations

      M Prohammer J P Carbotte

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      We have derived microscopic equations for the upper critical magnetic field of aD-wave superconductor stabilized by antiferromagnetic spin fluctuations. We present numerical results for the reduced fieldhc2(t) as a function of reduced temperaturet when the magnetic field is along thez axis and also zero-order results when it is along thex ory axis. Two differentD-wave models are considered. The angular dependence ofHc2 forT nearTc is given as a function of polar angleϑ in thez−x orz−y plane.

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