Acoustic and double elastic shock waves in single-crystal graphene

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期刊论文

作者：

Long, X. J.;Cai, Y.*;Jian, W. R.;Wang, L.*;Luo, S. N.

通讯作者：

Cai, Y.;Wang, L.

作者机构：

[Long, X. J.] Yangtze Normal Univ, Sch Elect Informat Engn, Chongqing 408100, Peoples R China.

[Luo, S. N.; Cai, Y.] Peac Inst Multiscale Sci, Chengdu 610031, Sichuan, Peoples R China.

[Luo, S. N.; Cai, Y.] Southwest Jiaotong Univ, Minist Educ, Lab Adv Technol Mat, Chengdu 610031, Sichuan, Peoples R China.

[Luo, S. N.; Cai, Y.] Southwest Jiaotong Univ, Inst Mat Dynam, Chengdu 610031, Sichuan, Peoples R China.

[Jian, W. R.] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA.

通讯机构：

[Cai, Y.] P

[Cai, Y.] S

[Wang, L.] H

Peac Inst Multiscale Sci, Chengdu 610031, Sichuan, Peoples R China.

Southwest Jiaotong Univ, Minist Educ, Lab Adv Technol Mat, Chengdu 610031, Sichuan, Peoples R China.

语种：

英文

期刊：

Journal of Applied Physics

ISSN：

0021-8979

年：

2020

卷：

127

期：

页码：

055101

DOI：

10.1063/1.5132925

基金类别：

National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China [11847098]; Natural Science Foundation of ChongqingNatural Science Foundation of Chongqing [cstc2018jcyjAX0448]

机构署名：

本校为通讯机构

院系归属：

理学院

摘要：

Double elastic shock waves are rarely observed in two-dimensional (2D) materials and normally unexpected for elastically isotropic 2D crystals such as graphene. With large-scale molecular dynamics simulations, we show that in single-crystal graphene shock-loaded along nonzigzag and nonarmchair directions, double elastic shock waves (quasilongitudinal and quasitransverse) can emerge. Quantitative acoustic wave equation analysis reveals that shock-induced symmetry reduction in lattice, as well as in elastic stiffness tensor, gives rise to the normally...

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Acoustic and double elastic shock waves in single-crystal graphene

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