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Phonon wave interference in graphene and boron nitride superlattice

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WOS被引频次:26
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成果类型:
期刊论文
作者:
Chen, Xue-Kun;Xie, Zhong-Xiang;Zhou, Wu-Xing;Tang, Li-Ming;Chen, Ke-Qiu
通讯作者:
Chen, KQ
作者机构:
[Tang, Li-Ming; Chen, Ke-Qiu; Chen, Xue-Kun; Zhou, Wu-Xing] Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha
[Tang, Li-Ming; Chen, Ke-Qiu; Chen, Xue-Kun; Zhou, Wu-Xing] 410082, China
[Xie, Zhong-Xiang] Department of Mathematics and Physics, Hunan Institute of Technology, Hengyang
[Xie, Zhong-Xiang] 421002, China
410082, China
通讯机构:
[Chen, KQ] Hunan Univ, Sch Phys & Elect, Dept Appl Phys, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
Lattice thermal conductivity - Nonequilibrium molecular dynamics simulation - Period length - Phonon spectrum - Thermal transport - Thermal transport properties
期刊:
APPLIED PHYSICS LETTERS
ISSN:
0003-6951
年:
2016
卷:
109
期:
2
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:物理学;WOS学科类别:Physics, Applied
入藏号:
WOS:000381155200044;EI:20162902622288
基金类别:
National Natural Science Foundation of China [11274105]; National Basic Research Program of China [2012CB932703]; Specialized Research Fund for the Doctoral Program of Higher Education of China [20130161130004]
机构署名:
本校为第一机构
院系归属:
数理科学与能源工程学院
摘要:
The thermal transport properties of the graphene and boron nitride superlattice (CBNSL) are investigated via nonequilibrium molecular dynamics simulations. The simulation results show that a minimum lattice thermal conductivity can be achieved by changing the period length of the superlattice. Additionally, it is found that the period length at the minimum shifts to lower values at higher temperatures, and that the depth of the minimum increases with decreasing temperature. In particular, at 200 K, the thermal conductivities of CBNSLs with certain specific period lengths are nearly equal to the corresponding values at 300 K. A detailed analysis of the phonon spectra shows that this anomalous thermal conductivity behavior is a result of strong phonon wave interference. These observations indicate a promising strategy for manipulation of thermal transport in superlattices. Published by AIP Publishing.
参考文献:
Balandin AA, 2008, NANO LETT, V8, P902, DOI 10.1021/nl0731872
Beloborodov IS, 2007, REV MOD PHYS, V79, P469, DOI 10.1103/RevModPhys.79.469
Beloborodov IS, 2004, PHYS REV B, V70, DOI 10.1103/PhysRevB.70.205120
Cahill DG, 2003, J APPL PHYS, V93, P793, DOI 10.1063/1.1524305
Capinski WS, 1999, PHYS REV B, V59, P8105, DOI 10.1103/PhysRevB.59.8105

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