Magnetism and thermodynamics of the anisotropic frustrated spin-1 Heisenberg antiferromagnet on a body-centered cubic lattice

详细信息    查看全文

• 作者：Bin-Zhou Mi^a ; ^b ; ^{mbzfjerry2008@126.com}
• 关键词：A. Frustrated spin-1 Heisenberg antiferromagnet ; D. Thermodynamic properties ; C. Spin anisotropy and single-ion anisotropy ; E. Double-time Green's function method
• 刊名：Solid State Communications
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：251
• 期：Complete
• 页码：79-87
• 全文大小：1034 K
• 卷排序：251

文摘

Magnetism and thermodynamics of the anisotropic frustrated spin-1 Heisenberg antiferromagnet on the body-centered cubic lattice for Néel phase is investigated. Double-time Green's function technique is used. Quantum fluctuation is suppressed by spin anisotropy and single-ion anisotropy, by contrast, is strengthened by frustration. The respective effects of spin anisotropy and single-ion anisotropy on thermodynamic quantities (internal energy and free energy) are examined. The effect of the spin anisotropy on the sublattice magnetization and internal energy is larger than that of the single-ion anisotropy in which two kinds of anisotropy coexist.