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Chain formation in a monolayer of dipolar hard spheres under an external field
Luo, L; Chen, XS; Chen, XS (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
2011
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
ISSN1674-7348
卷号54期号:9页码:1555-1560
摘要The phase behavior of a monolayer of dipolar hard spheres under an external field, which makes all dipoles of the monolayer orientate along its direction, is investigated. Using integral equation theory in the reference hypernetted chain (RHNC) approximation we calculate the correlation functions, which are used to obtain the response matrix of grand potential with respect to density fluctuations. The smallest eigenvalue of this response matrix determines the stability of the monolayer. When the smallest eigenvalue approaches zero, the monolayer becomes unstable and the corresponding eigenvector characterizes this instability. At dilute densities, with decreasing temperature the dipoles of the monolayer begin to form chains and simultaneously condensate. At medium and high densities, however, the dipoles of the monolayer have a stronger tendency to form dipolar chains with decreasing temperature and there is no condensation. The part of specific heat related to potential energy is investigated and found to increase sharply near the temperature of dipolar chain formation. This is in accordance with a sharp decrease in potential energy induced by the formation of a dipolar chain.
部门归属[Luo Liang; Chen XiaoSong] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China
关键词Nonspherical Particles Fluids Simulation Mixtures Equation Density
学科领域Physics
资助者National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005]
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收录类别SCI
语种英语
资助者National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005] ; National Natural Science Foundation of China [10835005]
WOS记录号WOS:000293797100001
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14285
专题理论物理所SCI论文
通讯作者Chen, XS (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Luo, L,Chen, XS,Chen, XS . Chain formation in a monolayer of dipolar hard spheres under an external field[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2011,54(9):1555-1560.
APA Luo, L,Chen, XS,&Chen, XS .(2011).Chain formation in a monolayer of dipolar hard spheres under an external field.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,54(9),1555-1560.
MLA Luo, L,et al."Chain formation in a monolayer of dipolar hard spheres under an external field".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 54.9(2011):1555-1560.
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