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Longitudinal-Random-Field Mixed Ising Model with Arbitrary Spins
Alternative TitleLongitudinal-Random-Field Mixed Ising Model with Arbitrary Spins
Liang YaQiu1; Wei GuoZhu2; Xu XiaoJuan1; Song GuoLi2
2010
Source PublicationCOMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
Volume53Issue:5Pages:957-962
AbstractThe longitudinal-random-field mixed Ising model consisting of arbitrary spin values has been studied by the use of an effective field theory with correlations (EFT). The phase diagrams of systems with mixed spins: sigma = 1/2, S = 1; sigma = 1/2, S = 3/2 are plotted. Not only the discontinuity at T = 0 K, is found when both longitudinal fields are trimodal distributed, but also the tricritical behavior is observed in these phase diagrams between the bimodal and trimodal distributions of longitudinal fields, which is different from the single-spin one. The appearance of tricritical point is independent of the coordination number and spin values.
Other AbstractThe longitudinal-random-field mixed Ising model consisting of arbitrary spin values has been studied by the use of an effective field theory with correlations (EFT). The phase diagrams of systems with mixed spins: σ = 1/2, S = 1; σ = 1/2, S = 3/2 are plotted. Not only the discontinuity at T = 0 K, is found when both longitudinal fields are trimodal distributed, but also the tricritical behavior is observed in these phase diagrams between the bimodal and trimodal distributions of longitudinal fields, which is different from the single-spin one. The appearance of tricritical point is independent of the coordination number and spin values.
KeywordTRICRITICAL POINTS THERMODYNAMICAL PROPERTIES RENORMALIZATION-GROUP UNIAXIAL ANISOTROPY PHASE-TRANSITIONS CRITICAL-BEHAVIOR SYSTEMS TEMPERATURES 1ST-ORDER SPIN-1/2 mixed Ising model random field phase diagram tricritical point
Indexed ByCSCD
Language英语
Funding Project[Research Fund of Education Department] ; [Science and Technology Department] ; [National Natural Science Foundation of China] ; [National 211 Development Fund for Key Engineering Program of Liaoning University] ; [Youth Foundation of Liaoning University]
CSCD IDCSCD:3891643
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/151233
Collection中国科学院金属研究所
Affiliation1.辽宁大学
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Liang YaQiu,Wei GuoZhu,Xu XiaoJuan,et al. Longitudinal-Random-Field Mixed Ising Model with Arbitrary Spins[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2010,53(5):957-962.
APA Liang YaQiu,Wei GuoZhu,Xu XiaoJuan,&Song GuoLi.(2010).Longitudinal-Random-Field Mixed Ising Model with Arbitrary Spins.COMMUNICATIONS IN THEORETICAL PHYSICS,53(5),957-962.
MLA Liang YaQiu,et al."Longitudinal-Random-Field Mixed Ising Model with Arbitrary Spins".COMMUNICATIONS IN THEORETICAL PHYSICS 53.5(2010):957-962.
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