The hole spin model for oxides

Ramakrishnan, T. V. (1988) The hole spin model for oxides Physica C: Superconductivity, 153-155 (1). pp. 555-559. ISSN 0921-4534

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A model of mobile 0-holes hybrized with Cu-spins on a square lattice is examined. A variational groundstate wavefunction which interpolates smoothly between n.n. RVB and Néel limits gives a Néellike minimum. A hole in an AF lattice polarizes it locally and becomes quite mobile. Two n.n. holes attract. Finally we speculate how holes can stabilize a spin liquid state.

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Deposited On:25 May 2011 11:08
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