Effect of "pseudorotation" on cyclopentane isochoric thermal conductivity

被引：0
|
作者：
Revyakin, V. P. [1 ]
Revyakina, M. G. [2 ]
Revyakin, G. V. [2 ]
机构：
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkiv, Ukraine
[2] V N Karazin Kharkiv Natl Univ, UA-61022 Kharkiv, Ukraine
来源：
LOW TEMPERATURE PHYSICS | 2023年 / 49卷 / 04期
关键词：
molecular crystals; thermal conductivity; librwations; pseudorotation; HEAT-TRANSFER; FORCE-FIELD; CONFORMATIONS; PHASES;
D O I：
10.1063/10.0017586
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The isochoric heat conductivity in plastic phases I and II solid cyclopentane(C5H10) is investigated. Various temperature dependents of heat conductivity indicate various characteristics of a rotary motion of molecules in these phases. In phase II, the motion of the molecules has mainly character of libration, and in phase I, is close to the hindered rotation. In a phase I of cyclopentane an increase in the slope of isochoric heat conductivity with the growth of the density of samples is revealed. Such behavior of heat conductivity is not characteristic of molecular crystals and can point to a contribution of "pseudorotation" to heat transfer. In phase II, cyclopentane the behavior of heat conductivity is close to a case of strong scattering of phonons.
引用
收藏
页码：448 / 452
页数：5
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