Phonon anharmonicity in bulk ZrTe5

doi:10.1002/jrs.6261

	Phonon anharmonicity in bulk ZrTe5
	Xu, Lihuan 2; Wang, Wei 1,3; Xie, Qiyun 2; Hu, Chengxiang 2; Chen, Limin 2; Zheng, Jiajin 2; Yin, Handi 4; Cheng, Guofeng 4; Ai, Xiaoqian 5
刊名	JOURNAL OF RAMAN SPECTROSCOPY
	2021-10-05
页码	9
关键词	anharmonicity phonons Raman spectroscopy thermoelectric material ZrTe5
ISSN号	0377-0486
DOI	10.1002/jrs.6261
通讯作者	Xie, Qiyun(qyxie@njupt.edu.cn) ; Cheng, Guofeng(gfcheng@mail.sic.ac.cn)
英文摘要	The study of phonon scattering processes is urgent for advancing the thermoelectric material with low thermal conductivity for commercial application. In this work, Raman scattering spectroscopy is utilized to quantify the temperature dependence of vibrational modes in ZrTe5 crystals, which enables the investigation on anharmonic contributions. We mainly focus on the temperature range from 80 up to 400 K due to noticeable surface oxidation at higher temperature. The phonon behaviors can be fully described by the model considering two mechanisms of the lattice thermal expansion effects and intrinsic anharmonicity. The four-phonon processes are non-negligible and even stronger than the three-phonon processes at high temperature. The phonon lifetime is greatly reduced by the enhancement of phonon scattering, contributing to the low thermal conductivity in ZrTe5 single crystals.
资助项目	Postgraduate Research & Practice Innovation Program of Jiangsu Province[SJCX20_0246] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[SJCX19_0278] ; Scientific Research Foundation of Nanjing University of Posts & Telecommunications[NY218021] ; Scientific Research Foundation of Nanjing University of Posts & Telecommunications[NY220186] ; National Natural Science Foundation of China[11404169] ; National Natural Science Foundation of China[51602159] ; National Natural Science Foundation of China[11704196]
WOS关键词	ULTRALOW THERMAL-CONDUCTIVITY ; LATTICE-DYNAMICS ; RAMAN-SPECTRA ; FIGURE ; MERIT
WOS研究方向	Spectroscopy
语种	英语
出版者	WILEY
WOS记录号	WOS:000703380600001
内容类型	期刊论文
源URL	[http://119.78.100.183/handle/2S10ELR8/297455]
专题	中国科学院上海药物研究所
通讯作者	Xie, Qiyun; Cheng, Guofeng
作者单位	1.Nanjing Tech Univ, Jiangsu Natl Synerget Innovat Ctr Adv Mat, Key Lab Flexible Elect, Nanjing, Peoples R China 2.Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Peoples R China 3.Nanjing Tech Univ, Jiangsu Natl Synerget Innovat Ctr Adv Mat, Inst Adv Mat, Nanjing, Peoples R China 4.Chinese Acad Sci, Anal & Testing Ctr Inorgan Mat, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 5.Jiangsu Second Normal Univ, Coll Phys & Elect Engn, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Lihuan,Wang, Wei,Xie, Qiyun,et al. Phonon anharmonicity in bulk ZrTe5[J]. JOURNAL OF RAMAN SPECTROSCOPY,2021:9.
APA	Xu, Lihuan.,Wang, Wei.,Xie, Qiyun.,Hu, Chengxiang.,Chen, Limin.,...&Ai, Xiaoqian.(2021).Phonon anharmonicity in bulk ZrTe5.JOURNAL OF RAMAN SPECTROSCOPY,9.
MLA	Xu, Lihuan,et al."Phonon anharmonicity in bulk ZrTe5".JOURNAL OF RAMAN SPECTROSCOPY (2021):9.