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Origin of Pseudogap in High-Tc Superconductors | | J. K. Srivastava
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7 Apr 2005 | | Subject: | Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el | | Affiliation: | Tata Institute of Fundamental Research, Mumbai, India | | Abstract: | We have proposed earlier a paired cluster (PC) model for high T_c superconductivity mechanism. We show here that this model is able to explain the pseudogap origin and other gap related properties of cuprates. As per PC model, singlet coupled magnetic cluster pairs are present in the cuprates, in the material’s otherwise paramagnetic state below a temperature T_CF, where an ionic spin of cluster 1 forms a singlet pair with a corresponding ionic spin of cluster 2. The conducting electrons (CEs) for T>=T_c and both the CEs and the Cooper pairs (CPs) for T=T>=T_c, with d-wave symmetry which superimposes over the BCS superconducting state (SS) energy gap for T | | Source: | arXiv, cond-mat/0504162 | | Services: | Forum | Review | PDF | Favorites | |
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