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Karadamoglou, J; Papanicolaou, N; Wang, X; Zotos, X; Wang, X , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Magnon dispersion and thermodynamics in CsNiF3
Source PublicationPHYSICAL REVIEW B
KeywordMatrix Renormalization-group Heisenberg Chain Magnetic-field Quantum Ferromagnets Temperature Anisotropy Heat
AbstractWe present an accurate transfer matrix renormalization group calculation of the thermodynamics in a quantum spin-1 planar ferromagnetic chain. We also calculate the field dependence of the magnon gap and confirm the accuracy of the magnon dispersion derived earlier through a 1/n expansion. We are thus able to examine the validity of a number of previous calculations and further analyze a wide range of experiments on CsNiF3 concerning the magnon dispersion, magnetization, susceptibility, and specific hear. Although it is not possible to account for all data with a single set of parameters, the overall qualitative agreement is good and the remaining discrepancies may reflect a departure from ideal quasi-one-dimensional model behavior. Finally, we present some indirect evidence to the effect that the popular interpretation of the excess specific heat in terms of sine-Gordon solitons may not be appropriate.
2001
ISSN0163-1829
Volume63Issue:22Pages:-
Subject AreaPhysics
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12737
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWang, X , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Recommended Citation
GB/T 7714
Karadamoglou, J,Papanicolaou, N,Wang, X,et al. Magnon dispersion and thermodynamics in CsNiF3[J]. PHYSICAL REVIEW B,2001,63(22):-.
APA Karadamoglou, J,Papanicolaou, N,Wang, X,Zotos, X,&Wang, X , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2001).Magnon dispersion and thermodynamics in CsNiF3.PHYSICAL REVIEW B,63(22),-.
MLA Karadamoglou, J,et al."Magnon dispersion and thermodynamics in CsNiF3".PHYSICAL REVIEW B 63.22(2001):-.
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