Hole Pairing In Antiferromagnetically Correlated Layered Oxides
Data(s) |
01/06/1988
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Resumo |
We have considered a two-band Hubbard model having interlaced Cu-3d(x2−y2) and O-2p(x, y) orbitals representing the CuO2 square planes. Simple CuO2 -cluster calculation suggests that the additional holes created by doping stay mainly on oxygen. Motion of an oxygen hole interlacing with the antiferromagnetically correlated background of copper spins, creates a string of high energy spin configuration of finite length giving mass renormalization. Another hole of opposite spin can now anneal this string tension providing a triangular pairing potential for large pair momentum. The latter implies unusual Bose condensation of the wake-bound compact Bose-like pairs on a non-zero momentum shell. Effect of disorder favouring condensation at the mobility edge is pointed out. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/21749/1/pdf.pdf Kumar, Narendra (1988) Hole Pairing In Antiferromagnetically Correlated Layered Oxides. In: Physica C, 153 . pp. 1227-1228. |
Publicador |
Elsevier Science |
Relação |
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVJ-46MNHW7-21&_user=512776&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000025298&_version=1&_urlVersion=0&_userid=512776&md5=1c08c859eb4b0f41bb02ebacb5ac137c http://eprints.iisc.ernet.in/21749/ |
Palavras-Chave | #Physics |
Tipo |
Journal Article PeerReviewed |