Atomic-scale observation of parallel development of super elasticity and reversible plasticity in GaAs nanowires

被引：27

作者：

Bao, Peite ^{[1
]}

Wang, Yanbo ^{[2
]}

Cui, Xiangyuan ^{[2
,3
]}

Gao, Qiang ^{[4
]}

Yen, Hung-Wei ^{[2
,3
]}

Liu, Hongwei ^{[3
]}

Yeoh, Wai Kong ^{[2
,3
]}

Liao, Xiaozhou ^{[2
]}

Du, Sichao ^{[1
]}

Tan, H. Hoe ^{[4
]}

Jagadish, Chennupati ^{[4
]}

Zou, Jin ^{[5
,6
]}

Ringer, Simon P. ^{[2
,3
]}

Zheng, Rongkun ^{[1
]}

机构：

[1] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[2] Univ Sydney, Sch Aerosp Mech & Mechatron Engn, Sydney, NSW 2006, Australia

[3] Univ Sydney, Australian Ctr Microscopy Microanal, Sydney, NSW 2006, Australia

[4] Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 0200, Australia

[5] Univ Queensland, Brisbane, Qld 4072, Australia

[6] Univ Queensland, Ctr Microscopy & Microanal, Brisbane, Qld 4072, Australia

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

LARGE-STRAIN PLASTICITY; MECHANICAL-PROPERTIES; NANOCRYSTALLINE ALUMINUM; INCIPIENT PLASTICITY; SI NANOWIRES; DEFORMATION; TEMPERATURE; COPPER; LIMIT; CRYSTALS;

D O I：

10.1063/1.4861846

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the atomic-scale observation of parallel development of super elasticity and reversible dislocation-based plasticity from an early stage of bending deformation until fracture in GaAs nanowires. While this phenomenon is in sharp contrast to the textbook knowledge, it is expected to occur widely in nanostructures. This work indicates that the super recoverable deformation in nanomaterials is not simple elastic or reversible plastic deformation in nature, but the coupling of both. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 29 条

[11] Twin-free uniform epitaxial GaAs nanowires grown by a two-temperature process [J].