Conference

### Large Phase Separation and Superconductivity in the Copper Oxide Chain

Abstract:

The phase diagram of the copper-oxide chain as a function of density and the nearest-neighbour Coulomb interaction, V, is determined. Phase separation takes place above a critical value of $V$ when the Cu2+ to Cu+ valence fluctuations dominate. In the proximity of the phase separation boundary the superconducting correlations are the most divergent. We identify the parameter regions where the Luttinger Liquid theory applies and calculate the contours of the charge-charge correlation exponent ...

Publication status:
Published

### Authors

Vermeulen, C More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Chemistry, Physical and Theoretical Chem
Gagliano, ER More by this author
Publisher:
Publ by Elsevier Science Publishers B.V.
Volume:
194
Issue:
pt 2
Pages:
1455-1456
Publication date:
1994-07-13
DOI:
ISSN:
0921-4526
URN:
Source identifiers:
44387
Local pid:
pubs:44387
Keywords: