"Phonon" scattering beyond perturbation theory

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 高性能陶瓷和超微结构国家重点实验室 > 期刊论文

	"Phonon" scattering beyond perturbation theory
	Qiu, WuJie 1,2; Ke, XueZhi 2; Xi, LiLi 1; Wu, LiHua 1,3; Yang, Jiong 3; Zhang, WenQing 1,3
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2016-02-01
卷号	59 期号:2
关键词	part-crystalline state sublattice disorder lattice thermal conductivity
英文摘要	Searching and designing materials with intrinsically low lattice thermal conductivity (LTC) have attracted extensive consideration in thermoelectrics and thermal management community. The concept of part-crystalline part-liquid state, or even part-crystalline part-amorphous state, has recently been proposed to describe the exotic structure of materials with chemical-bond hierarchy, in which a set of atoms is weakly bonded to the rest species while the other sublattices retain relatively strong rigidity. The whole system inherently manifests the coexistence of rigid crystalline sublattices and fluctuating noncrystalline substructures. Representative materials in the unusual state can be classified into two categories, i.e., caged and non-caged ones. LTCs in both systems deviate from the traditional T-1 relationship (T, the absolute temperature), which can hardly be described by small-parameter-based perturbation approaches. Beyond the classical perturbation theory, an extra rattling-like scattering should be considered to interpret the liquid-like and sublattice-amorphization-induced heat transport. Such a kind of compounds could be promising high-performance thermoelectric materials, due to the extremely low LTCs. Other physical properties for these part-crystalline substances should also exhibit certain novelty and deserve further exploration.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	LATTICE THERMAL-CONDUCTIVITY ; ENHANCED THERMOELECTRIC PERFORMANCE ; FILLED SKUTTERUDITE ANTIMONIDES ; BULK THERMOELECTRICS ; METALLIC GLASSES ; ELECTRON ; FIGURE ; MERIT ; TEMPERATURE ; CRYSTALS
收录类别	SCI
语种	英语
WOS记录号	WOS:000368074700011
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/23282]
专题	上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.E China Normal Univ, Dept Phys, Shanghai 200241, Peoples R China 3.Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China
推荐引用方式 GB/T 7714	Qiu, WuJie,Ke, XueZhi,Xi, LiLi,et al. "Phonon" scattering beyond perturbation theory[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59(2).
APA	Qiu, WuJie,Ke, XueZhi,Xi, LiLi,Wu, LiHua,Yang, Jiong,&Zhang, WenQing.(2016)."Phonon" scattering beyond perturbation theory.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59(2).
MLA	Qiu, WuJie,et al.""Phonon" scattering beyond perturbation theory".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59.2(2016).