Tri-critical behavior of the Blume Capel model on a diamond lattice
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- 作者：Jander P. Santosa ; b ; jander@ufsj.edu.br" class="auth_mail" title="E-mail the corresponding author ; F.C. Sá ; Barretoa ; c ; fcsabarreto@gmail.com" class="auth_mail" title="E-mail the corresponding author ; D.S. Rosad ; derick@ift.unesp.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Blume-Capel model ; Diamond lattice ; Critical temperature
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：423
- 期：Complete
- 页码：175-182
- 全文大小：875 K
文摘
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From the Bogoliubov inequality the mean field approximation is applied.
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Correlation identities for the Blume-Capel model on a diamond lattice are obtained.
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From the spin correlation identities the effective-field theory is applied.
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Lines of phase transitions of first order and continuous are obtained.
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Multicritical points are obtained according to this procedure.
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