ORVB Mean-Field Calculation in the Tight-Binding Model with Anti-Ferromagnetic Exchange

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dc.creatorChau, Ling-Lie
dc.creatorHuang, Ding-Wei
dc.date1995-07-01
dc.date.accessioned2026-07-07T03:07:47Z
dc.date.available2026-07-07T03:07:47Z
dc.descriptionWe give a mean-field calculation for the odd-resonating-valence-bond ORVB pairing scheme. We obtain interesting quasi-particle excitation energy $E_{\bf k}$ as a function of momentum ${\bf k}$. It is distinctively different from those of the $d_{x^2-y^2}$-wave, the anisotropic-s-wave, and the p-wave. It is a gapless theory for superconductivity with well defined Fermi surface. The ground state of the ORVB scheme is not an eigenstate of the parity or the time-reversal transformation, thus both symmetries are violated. Some of them are already manifested in $E_{\bf k}\neq E_{-{\bf k}} $. It is interesting to find out if such pairing order-parameter scheme exits in some materials in nature.
dc.description12 pages, uses phyzzx
dc.identifierhttps://arxiv.org/abs/cond-mat/9506143
dc.identifierhttp://arxiv.org/abs/cond-mat/9506143
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/27303
dc.subjectCondensed Matter
dc.titleORVB Mean-Field Calculation in the Tight-Binding Model with Anti-Ferromagnetic Exchange
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