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Long-range two-hole bound states in t-J model

โœ Scribed by M.Yu. Kuchiev; O.P. Sushkov

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
220 KB
Volume
235-240
Category
Article
ISSN
0921-4534

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โœฆ Synopsis

Several series ,~f shallow long-range (l 7~, lattice spacing) two-hole bound states on the Need background axe found in the two-dimensional t-J model. Their binding energ'~ depend exponentially on the inverse value of the hole-spin-wave coupling constant. The possible role of these states in the formation of superconducting pairing is considered. The problem of mobile holes in the t-d model is closely related to high-To superconductivity. The t-J model with less than half-filling is defined by the Hamiltonian

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