Thermal Conductivity of a Molecular Crystal with Rotational Degrees of Freedom: Orientational Defect Scattering

被引：0
|
作者：
A. I. Krivchikov
P. Stachowiak
E. Pisarska
A. Jeżowski
机构：
[1] National Academy of Sciences of Ukraine,Institute for Low Temperature Physics and Engineering
[2] Polish Academy of Sciences,Institute for Low Temperature and Structure Research
来源：
Journal of Low Temperature Physics | 2008年 / 150卷
关键词：
Thermal conductivity; Molecular crystal; Orientational disorder; Phonon scattering; Isotopic effects; Phase transition; 63.20.-e; 66.70.-f;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Measurements of thermal conductivity of solid methane-deuteromethane solutions at equilibrium vapor pressure in the temperature range 1.2÷20 K are reported. The obtained dependences of thermal conductivity on temperature and concentration can be explained qualitatively assuming that the dominant mechanism of phonon scattering is connected with the interaction of phonons with the rotational motion of the molecules in all of the three orientational phases of the CH4-CD4 system. The contribution of the orientational defect scattering to the thermal conductivity is discussed in frame of the model of local changes in the moments of inertia of molecules.
引用
下载
收藏
页码：323 / 329
页数：6
相关论文
共 50 条
  • [1] Thermal conductivity of a molecular crystal with rotational degrees of freedom: Orientational defect scattering
    Krivchikov, A. I.
    Stachowiak, P.
    Pisarska, E.
    Zowski, A.
    JOURNAL OF LOW TEMPERATURE PHYSICS, 2008, 150 (3-4) : 323 - 329
  • [2] Intercoupling of molecular conformational and orientational degrees of freedom in a nematic liquid crystal
    Aver'yanov, EM
    MOLECULAR MATERIALS, 2001, 14 (01): : 79 - 101
  • [3] THERMAL-CONDUCTIVITY OF A CRYSTAL WITH IMPURITIES OF INTERNAL DEGREES OF FREEDOM
    SEGAL, A
    PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1981, 106 (01): : 379 - 391
  • [4] Entanglement of molecular-orientation, rotational and orbital degrees of freedom in multiphoton orientational wave packets
    Mainos, C.
    Dutier, G.
    Grucker, J.
    Perales, F.
    Baudon, J.
    Ducloy, M.
    JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2008, 41 (03)
  • [5] Effect of Rotational Degrees of Freedom on Molecular Mobility
    Jafary-Zadeh, M.
    Reddy, C. D.
    Zhang, Yong-Wei
    JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (13): : 6800 - 6806
  • [6] Spectral effects of correlation between molecular conformational and orientational degrees of freedom in a nematic liquid crystal
    Aver'yanov, EM
    MOLECULAR MATERIALS, 2001, 14 (02): : 121 - 138
  • [7] GEOMETRICAL STRUCTURE OF TORSIONAL AND ROTATIONAL DEGREES OF FREEDOM IN DEFECT SYSTEMS
    HOLZ, A
    PHYSICA A, 1985, 131 (02): : 410 - 430
  • [8] Dynamics of the rotational degrees of freedom in an undercooled crystal of cyanoadamantane
    Affouard, F
    Descamps, M
    PHASE TRANSITIONS, 2003, 76 (9-10) : 781 - 785
  • [9] Effects of internal molecular degrees of freedom on the thermal conductivity of some glasses and disordered crystals
    Krivchikov, A. I.
    Korolyuk, O. A.
    Sharapova, I. V.
    Ll Tamarit, J.
    Bermejo, F. J.
    Pardo, L. C.
    Rovira-Esteva, M.
    Ruiz-Martin, M. D.
    Jezowski, A.
    Baran, J.
    Davydova, N. A.
    PHYSICAL REVIEW B, 2012, 85 (01)
  • [10] MOLECULAR FRICTION IN DILUTE GASES .2. THERMAL RELAXATION OF TRANSLATIONAL AND ROTATIONAL DEGREES OF FREEDOM
    SATHER, NF
    DAHLER, JS
    JOURNAL OF CHEMICAL PHYSICS, 1961, 35 (06): : 2029 - &
12345