Behavior of the mean spin on finite clusters in a model for the dilute Heisenberg antiferromagnet
作者:
J. W. Halley,
W. K. Holcomb,
期刊:
Journal of Applied Physics
(AIP Available online 1978)
卷期:
Volume 49,
issue 3
页码: 2153-2155
ISSN:0021-8979
年代: 1978
DOI:10.1063/1.324715
出版商: AIP
数据来源: AIP
摘要:
We report a study of the mean spin on finite clusters with 2, 3, 4, 5 and 6 spins in a linearized spin wave model for the dilute antiferromagnet on a square lattice due to Thorpe and Alben. For 2 and 3 spin clusters, the results are compared to the exact results and to the exact solution of the linearized Green’s function equations. We find that, as expected physically, the model treats this property of the small clusters in a manner which is neither self‐consistent nor in accord with exact results. We discuss briefly how these results affect the validity of the use of the Thorpe and Alben model for other more global quantities.
点击下载:
PDF
(147KB)
返 回