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Plasticity in inhomogeneously strained Au nanowires studied by Laue microdiffraction

Published online by Cambridge University Press:  28 May 2018

Z. Ren ,
T.W. Cornelius ,
C. Leclere ,
A. Davydok ,
J. -S. Micha ,
O. Robach ,
G. Richter  and
O. Thomas
Z. Ren
Affiliation:
Aix Marseille Univ, Univ de Toulon, CNRS, IM2NP UMR 7334, 13397 Marseille, France
T.W. Cornelius*
Affiliation:
Aix Marseille Univ, Univ de Toulon, CNRS, IM2NP UMR 7334, 13397 Marseille, France
C. Leclere
Affiliation:
Aix Marseille Univ, Univ de Toulon, CNRS, IM2NP UMR 7334, 13397 Marseille, France
A. Davydok
Affiliation:
Aix Marseille Univ, Univ de Toulon, CNRS, IM2NP UMR 7334, 13397 Marseille, France
J. -S. Micha
Affiliation:
CRG-IF BM32 Beamline, European Synchrotron (ESRF), CS40220, 38043 Grenoble Cedex 9, France Université Grenoble Alpes, CEA/INAC, UMR CNRS SPrAM, 17 rue des Martyrs, 38054 Grenoble, France
O. Robach
Affiliation:
CRG-IF BM32 Beamline, European Synchrotron (ESRF), CS40220, 38043 Grenoble Cedex 9, France Université Grenoble Alpes, CEA/INAC/MEM, 17 rue des Martyrs, 38054 Grenoble, France
G. Richter
Affiliation:
Max Planck Institute for Intelligent Systems, Heisenbergstrasse 3, 70569 Stuttgart, Germany
O. Thomas
Affiliation:
Aix Marseille Univ, Univ de Toulon, CNRS, IM2NP UMR 7334, 13397 Marseille, France
*
*(Email: thomas.cornelius@im2np.fr)
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Abstract

Plasticity in as-grown gold nanowires deformed in three-point bending configuration was studied by Laue microdiffraction. One-dimensional orientation maps of the Au crystal along the nanowire were generated from which the deformation profile was inferred. The crystal lattice was found to rotate continuously around the Au $[\bar{2}11]$ direction, which is transverse to the wire axis evidencing the storage of geometrically necessary dislocations (GNDs). The analysis of the diffraction peak shape points to the activation of multiple slip systems in contrast to the formation of wedge shaped twins predicted by MD simulations.

Keywords

nanostructurex-ray diffraction (XRD)dislocations
Type
Articles
Information
MRS Advances , Volume 3 , Issue 39: Characterization, Modeling and Theory , 2018 , pp. 2331 - 2339
Copyright
Copyright © Materials Research Society 2018 

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