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Ground-State Phase Diagram of Transverse Spin-2 Ising Model with Longitudinal Crystal-Field 被引量：5

Ground-State Phase Diagram of Transverse Spin-2 Ising Model with Longitudinal Crystal-Field
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摘要 <正> The transverse spin-2 Ising ferromagnetic model with a longitudinal crystal-field is studied within themean-field theory based on Bogoliubov inequality for the Gibbs free energy.The ground-state phase diagram and thetricritical point are obtained in the transverse field Ω/zJ-longitudinal crystal D/zJ field plane.We find that there are thefirst order-order phase transitions in a very small range of D/zJ besides the usual first order-disorder phase transitionsand the second order-disorder phase transitions. The transverse spin-2 Ising ferromagnetic model with a longitudinal crystal-field is studied within the mean-field theory based on Bogoliubov inequality for the Gibbs free energy. The ground-state phase diagram and the tricritical point are obtained in the transverse field Ω/ zJ-longitudinal crystal D / zJ field plane. We find that there are the first order-order phase transitions in a very small range of D /zJ besides the usual first order-disorder phase transitions and the second order-disorder phase transitions,
作者 ZHAO Jie WEI Guo-Zhu XU Xing-Guang
机构地区 College of Science College of Science
出处 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第4期749-753,共5页 理论物理通讯（英文版）
关键词 纵向晶场 相位图 相变化 极值 transverse spin-2 Ising model longitudinal crystal field ground state phase diagram first orderorder phase transition
分类号 O41 [理学—理论物理]
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参考文献15

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同被引文献16

  • 1赵杰,许星光,魏国柱.S=2的单轴各向异性横向Ising模型的基态磁性质[J].石油化工高等学校学报,2006,19(1):89-92. 被引量：3
  • 2储德清,王立敏,张景萍,王荣顺.以杂环做端基的高自旋双自由基分子的理论研究[J].东北师大学报（自然科学版）,2007,39(1):81-83. 被引量：6
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  • 10JIANG WEI,WEI GUOZHU,Xin Zihua.Properties of ground state in the spi-3-2 transverse Ising model with crystal field[J].Phys Stst Sol B,2002,218:553-559.

引证文献5

二级引证文献3

Communications in Theoretical Physics
2006年 第4期

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