Abstract
Stable Hartree-Fock solutions consisting of parallel arrays of line defects in the antiferromagnetic order are found in the large-U Hubbard model, in two dimension near to half-filling. The excess holes are bound by a gain in kinetic energy of order t to form charged-soliton lines. There is a close parallel to one dimension. Quantum fluctuations are not treated but are expected to be important.
Keywords
Hartree–Fock methodPhysicsHubbard modelDimension (graph theory)AntiferromagnetismKinetic energySolitonQuantum electrodynamicsHartreeQuantum mechanicsCondensed matter physicsOrder (exchange)Line (geometry)Nonlinear systemGeometry
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Publication Info
- Year
- 1989
- Type
- article
- Volume
- 39
- Issue
- 13
- Pages
- 9749-9752
- Citations
- 426
- Access
- Closed
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Cite This
Didier Poilblanc,
T. M. Rice
(1989).
Charged solitons in the Hartree-Fock approximation to the large-<i>U</i>Hubbard model.
Physical review. B, Condensed matter
, 39
(13)
, 9749-9752.
https://doi.org/10.1103/physrevb.39.9749
Identifiers
- DOI
- 10.1103/physrevb.39.9749