Transition temperature scaling in weakly coupled two-dimensional Ising models
Transition temperature scaling in weakly coupled two-dimensional Ising models
复制标题
弱耦合二维 Ising 模型中的转变温度标度
DOI:
10.1016/j.physa.2019.123276
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Moodie J
中科院分区:
文献类型:
--
作者:
Moodie J
We investigate the proposal that for weakly coupled two-dimensional magnets the transition temperature scales with a critical exponent which is equivalent to that of the susceptibility in the underlying two-dimensional model, γ. Employing the exact diagonalization of transfer matrices we can determine the critical temperature for Ising models accurately and then fit to approximate this critical exponent. We find an additional logarithm is required to predict the transition temperature, stemming from the fact that the heat capacity exponent α tends to zero for this Ising model, complicating the elementary prediction. We suggest that the excitations of the transfer matrix correspond to thermalized topological excitations of the model and find that even the simplest model exhibits significant changes of behavior for the most relevant of these excitations as the temperature is varied.
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影响因子:
3.3
作者:
Lipowski, A
通讯作者:
Lipowski, A
DOI:
10.1007/bf01313197
发表时间:
1978
期刊:
Zeitschrift für Physik B Condensed Matter
影响因子:
--
作者:
T. Burkhardt
通讯作者:
T. Burkhardt
影响因子:
--
作者:
M. Fisher
通讯作者:
M. Fisher
影响因子:
3.7
作者:
J. Xavier;F. C. Alcaraz;D. P. Lara;J. A. Plascak
通讯作者:
J. A. Plascak
DOI:
10.1016/0378-4371(75)90021-7
发表时间:
1976
影响因子:
3.3
作者:
M.P Nightingale
通讯作者:
M.P Nightingale