Spin exchange and superconductivity in a t-J(')-V model for two-dimensional quarter-filled systems

Greco, Andrés, Merino, Jaime, Foussats, Adriana and McKenzie, Ross H. (2005) Spin exchange and superconductivity in a t-J(')-V model for two-dimensional quarter-filled systems. Physical Review B - Condensed Matter and Materials Physics, 71 14: 1-8. doi:10.1103/PhysRevB.71.144502

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads
UQ76056.pdf Full text (open access) application/pdf 99.26KB 9

Author Greco, Andrés
Merino, Jaime
Foussats, Adriana
McKenzie, Ross H.
Title Spin exchange and superconductivity in a t-J(')-V model for two-dimensional quarter-filled systems
Journal name Physical Review B - Condensed Matter and Materials Physics   Check publisher's open access policy
ISSN 1098-0121
1550-235X
Publication date 2005
Sub-type Article (original research)
DOI 10.1103/PhysRevB.71.144502
Open Access Status File (Publisher version)
Volume 71
Issue 14
Start page 1
End page 8
Total pages 8
Editor P. D. Adams
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2005
Language eng
Subject 240204 Condensed Matter Physics - Other
780102 Physical sciences
Abstract The effect of antiferromagnetic spin fluctuations on two-dimensional quarter-filled systems is studied theoretically. An effective t-J(')-V model on a square lattice which accounts for checkerboard charge fluctuations and next-nearest-neighbor antiferromagnetic spin fluctuations is considered. From calculations based on large-N theory on this model it is found that the exchange interaction J(') increases the attraction between electrons in the d(xy) channel only, so that both charge and spin fluctuations work cooperatively to produce d(xy) pairing.
Keyword Physics, Condensed Matter
Hubbard-model
Instabilities
Limit
State
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 06:13:27 EST