南方科技大学知识苑(SUSTech KC): Dimer rattling mode induced low thermal conductivity in an excellent acoustic conductor

题名	Dimer rattling mode induced low thermal conductivity in an excellent acoustic conductor
作者	Qi，Ji 1,2; Dong，Baojuan 1; Zhang，Zhe 1,2; Zhang，Zhao 1,2; Chen，Yanna 3; Zhang,Qiang 4; Danilkin,Sergey 5; Chen,Xi 6,7; He，Jiaming 6; Fu，Liangwei 8; Jiang，Xiaoming 9; Chai，Guozhi 10; Hiroi，Satoshi 3; Ohara，Koji 11; Zhang，Zongteng 1,2; Ren，Weijun 1; Yang，Teng 1,2; Zhou，Jianshi 6; Osami，Sakata 3; He，Jiaqing8 ; Yu，Dehong 5; Li，Bing 1,2; Zhang，Zhidong 1,2
通讯作者	Yu，Dehong; Li，Bing
发表日期	2020-12-01
DOI	10.1038/s41467-020-19044-w
发表期刊	Nature Communications 影响因子和分区
ISSN	2041-1723
EISSN	2041-1723
卷号	11 期号:1
摘要	A solid with larger sound speeds usually exhibits higher lattice thermal conductivity. Here, we report an exception that CuP has a quite large mean sound speed of 4155 m s, comparable to GaAs, but single crystals show very low lattice thermal conductivity of about 4 W m K at room temperature, one order of magnitude smaller than GaAs. To understand such a puzzling thermal transport behavior, we have thoroughly investigated the atomic structures and lattice dynamics by combining neutron scattering techniques with first-principles simulations. This compound crystallizes in a layered structure where Cu atoms forming dimers are sandwiched in between P atomic networks. In this work, we reveal that Cu atomic dimers vibrate as a rattling mode with frequency around 11 meV, which is manifested to be remarkably anharmonic and strongly scatters acoustic phonons to achieve the low lattice thermal conductivity.
相关链接	[Scopus记录]
收录类别	SCI
语种	英语
重要成果	NI论文
学校署名	其他
资助项目	National Natural Science Foundation of China[11934007][11804346] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-JSC002] ; Liaoning Revitalization Talents Program[XLYC1807122] ; NSF[MRSEC DMR-1720595]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000582681400009
出版者	NATURE RESEARCH
Scopus记录号	2-s2.0-85092570270
来源库	Scopus
引用统计	被引频次[WOS]：34
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/203731
专题	理学院_物理系
作者单位	1.Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,72 Wenhua Road,110016,China 2.School of Materials Science and Engineering,University of Science and Technology of China,Shenyang,110016,China 3.Synchrontron X-ray station at SPring-8,Research Network and Facility Services Division,National Institute for Materials Science (NIMS),Hyogo,1-1-1 Kouto, Sayo-Cho, Sayo-Gun,679-5148,Japan 4.Spallation Neutron Source,Oak Ridge National Laboratory,Oak Ridge,37831,United States 5.Australian Nuclear Science and Technology Organisation,Kirrawee,Locked Bag 2001,NSW 2232,Australia 6.Department of Mechanical Engineering,University of Texas at Austin,Austin,78712,United States 7.Department of Electrical and Computer Engineering,University of California,Riverside,92521,United States 8.Department of Physics,Southern University of Science and Technology,Shenzhen,518005,China 9.State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,350002,China 10.Key Lab for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University,Lanzhou,730000,China 11.SPring-8,Diffraction and Scattering Division,Japan Synchrotron Radiation Research Institute,Hyogo,1-1-1 Kouto, Sayo-Cho, Sayo-Gun,679-5198,Japan
推荐引用方式 GB/T 7714	Qi，Ji,Dong，Baojuan,Zhang，Zhe,et al. Dimer rattling mode induced low thermal conductivity in an excellent acoustic conductor[J]. Nature Communications,2020,11(1).
APA	Qi，Ji.,Dong，Baojuan.,Zhang，Zhe.,Zhang，Zhao.,Chen，Yanna.,...&Zhang，Zhidong.(2020).Dimer rattling mode induced low thermal conductivity in an excellent acoustic conductor.Nature Communications,11(1).
MLA	Qi，Ji,et al."Dimer rattling mode induced low thermal conductivity in an excellent acoustic conductor".Nature Communications 11.1(2020).