Scaling analysis of negative differential thermal resistance

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	Scaling analysis of negative differential thermal resistance
	Chan, Ho-Kei ; He, Dahai ; Hu, Bambi ; He DH(贺达海)
刊名	http://dx.doi.org/10.1103/PhysRevE.89.052126
	2014-05-19
英文摘要	NSFC [11047185, 11105112]; FRFCU of the People's Republic of China [2010121009]; Negative differential thermal resistance (NDTR) can be generated for any one-dimensional heat flow with a temperature-dependent thermal conductivity. In a system-independent scaling analysis, the general condition for the occurrence of NDTR is found to be an inequality with three scaling exponents: n(1)n(2) < -(1 + n(3)), where n(1) is an element of(-infinity,+infinity) describes a particular way of varying the temperature difference, and n(2) and n(3) describe, respectively, the dependence of the thermal conductivity on an average temperature and on the temperature difference. For cases with a temperature-dependent thermal conductivity, i.e. n(2) not equal 0, NDTR can always be generated with a suitable choice of n(1) such that this inequality is satisfied. The results explain the illusory absence of a NDTR regime in certain lattices and predict new ways of generating NDTR, where such predictions have been verified numerically. The analysis will provide insights for a designing of thermal devices, and for a manipulation of heat flow in experimental systems, such as nanotubes.
语种	英语
出版者	AMER PHYSICAL SOC
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92017]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Chan, Ho-Kei,He, Dahai,Hu, Bambi,et al. Scaling analysis of negative differential thermal resistance[J]. http://dx.doi.org/10.1103/PhysRevE.89.052126,2014.
APA	Chan, Ho-Kei,He, Dahai,Hu, Bambi,&贺达海.(2014).Scaling analysis of negative differential thermal resistance.http://dx.doi.org/10.1103/PhysRevE.89.052126.
MLA	Chan, Ho-Kei,et al."Scaling analysis of negative differential thermal resistance".http://dx.doi.org/10.1103/PhysRevE.89.052126 (2014).