Large moment formation and thermodynamic properties of disordered spin ladders with site dilution

Yusuf, E. and Yang, K. (2003) Large moment formation and thermodynamic properties of disordered spin ladders with site dilution. Physical Review B, 67 14: 144409-1-144409-8. doi:10.1103/PhysRevB.67.144409

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Author Yusuf, E.
Yang, K.
Title Large moment formation and thermodynamic properties of disordered spin ladders with site dilution
Journal name Physical Review B   Check publisher's open access policy
ISSN 1098-0121
Publication date 2003-04-01
Year available 2003
Sub-type Article (original research)
DOI 10.1103/PhysRevB.67.144409
Open Access Status File (Publisher version)
Volume 67
Issue 14
Start page 144409-1
End page 144409-8
Total pages 8
Place of publication College Pk
Publisher American Physical Society
Language eng
Subject 240000 Physical Sciences
Abstract Low temperature properties of antiferromagnetic two-leg spin-1/2 ladders with bond randomness and site dilution (or doping with nonmagnetic impurities) are studied using the real-space renormalization-group technique. We find that for nonzero dopant concentrations the systems are driven into a phase dominated by large effective spins, i.e., the large spin phase. The susceptibility follows a universal Curie-like 1/T behavior at low temperature, regardless of the dopant concentration (as long as it is nonzero) and the strength of bond randomness. A very similar behavior has been found in ladders that are doped with magnetic impurities that carry spin-1.
Keyword Physics, Condensed Matter
Low-temperature Properties
Anti-ferromagnetic Chain
Nonmagnetic Impurities
Antiferromagnetic Correlations
Fixed-points
Systems
Srcu2o3
Enhancement
Transition
Randomness
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Physical Sciences Publications
 
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Created: Fri, 28 Mar 2008, 15:21:36 EST