The d-wave resonance valence bond state

The properties of strongly correlated electron models in the form of ladders are reviewed. The groundstate of undoped and lightly doped two chain ladders described by the t-J model is a realization of a d-wave resonance valence bond state. Although many properties are those of lightly doped insulato...

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Bibliographic Details
Published inThe Journal of physics and chemistry of solids Vol. 56; no. 12; pp. 1663 - 1667
Main Authors Rice, T.M., Troyer, M., Tsunetsugu, H.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.1995
Elsevier
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states
Electronic structure
Exact sciences and technology
Physics
Properties of type I and type II superconductors
Strongly correlated electron systems; heavy fermions
Strongly correlated systems; heavy fermions
Superconductivity
Electronic structure
Strong correlation
High-Tc superconductors
Theoretical study
Hubbard model
t-J model
RVB model
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Summary:The properties of strongly correlated electron models in the form of ladders are reviewed. The groundstate of undoped and lightly doped two chain ladders described by the t-J model is a realization of a d-wave resonance valence bond state. Although many properties are those of lightly doped insulators, the strong magnetic polarizability modifies the dispersion relation for quasiparticles to resemble a metal with a large Fermi surface. Some discussion is given of possible relationships of the ladder systems to a two dimensional planar t-J model and of a possible origin of the spin-gap in underdoped cuprates.
ISSN:0022-3697
1879-2553
DOI:10.1016/0022-3697(95)00143-3