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2007 | 111 | 5 | 781-789
Article title

Properties of the Bound States on a Hexagonal Lattice

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EN
Abstracts
EN
Two electrons on a lattice pose an interesting problem which can be solved exactly. When the effective interactions are strong enough, the bound states are formed. The properties of such bound pairs in an extended Hubbard model are examined for both signs of nearest neighbor hopping integral t. The stabilization of s*-wave pairing is found for t<0 and of f-wave for t>0. Phase diagrams for the existence of none, one or two s*-wave solutions are calculated.
Keywords
Year
Volume
111
Issue
5
Pages
781-789
Physical description
Dates
published
2007-05
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv111n515kz
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