Publicação: Mixing of superconducting d(x2-y2) state with s-wave states for different filling and temperature
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Elsevier B.V.
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We study the order parameter for mixed-symmetry states involving a major d(x2-y2) state and various minor s-wave states (s, s(xy), and Sx2+y2) for different filling and temperature for mixing angles 0 and pi /2. We employ a two-dimensional tight-binding model incorporating second-neighbor hopping for tetragonal and orthorhombic lattice. There is mixing for the symmetric s state both on tetragonal and orthorhombic lattice. The s(xy) state mixes with the d(x2-y2) state only on orthorhombic lattice. The s(x2+y2) state never mixes with the d(x2-y2) state. The temperature dependence of the order parameters is also studied. (C) 2001 Elsevier B.V. B.V. All rights reserved.
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high-T-c superconductor, mixed-symmetry state, order parameter
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Inglês
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Physica C. Amsterdam: Elsevier B.V., v. 355, n. 1-2, p. 77-86, 2001.
