• S N Behera

      Articles written in Bulletin of Materials Science

    • A mechanism for pairing of RVB excitations

      S N Behera D Sa

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      The fluctuations in the RVB order parameter over their meanfield values are considered in the BZA theory which mediate the interaction between the RVB excitations. The condition under which the effective interaction could be attractive and result in super-conductivity is investigated. The dependence of the transition temperature on the dopant concentration and the RVB order parameter is calculated.

    • Static hole in a two-dimensional antiferromagnet

      D M Gaitonde V Ramesh S N Behera

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      The energetics of static hole in a 2D antiferromagnetic (AF) is studied. AF is described by magnon operators in the LSW approximation, while the holes by fermionic operators. The energy spectrum of the magnons in the presence of the hole is determined from the perturbed Green’s function.

    • Charge bag model of superconductivity in intercalated layered compounds

      S N Behera D M Gaitonde

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      In certain layered compounds the superconducting transition temperature (Tc) is enhanced on intercalation. The superconductivity in these materials arises over a charge density wave background. To explain this enhancement inTc we propose the charge bag model analogous to the spin bag model proposed earlier by Schrieffer as a mechanism for highTc superconductivity.

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