Published March 11, 2013
| public
Journal Article
Helium Implantation Effects on the Compressive Response of Cu Nanopillars
Abstract
A fabrication methodology for 120 nm-diameter, <111>-oriented single crystalline Cu nanopillars which are uniformly implanted with helium is described. Uniaxial compression experiments reveal that their yield strength is 30% higher than that of their unimplanted counterparts. This study sheds light on the fundamental understanding of the deformation mechanism of irradiated metallic nanocrystals, and has important implications for the interplay between irradiation-induced defects and the external sample dimensions in the nanoscale.
Additional Information
© 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received: July 9, 2012. Revised: September 24, 2012. Article first published online: 12 Nov. 2012. The authors gratefully acknowledge the financial support of the US Department of Energy, Office of Basic Energy Sciences through JRG's Early Career grant. The authors also acknowledge the critical support and infrastructure provided for this work by the Kavli Nanoscience Institute at Caltech. Q. Guo would like to thank Andrew T. Jennings for providing the data for as-fabricated Cu pillars. Access to the ion implantation facility was partially supported by Center for Integrated Nanotechnologies (CINT), a DOE nanoscience center jointly operated by Los Alamos and Sandia National Laboratories.Additional details
- Eprint ID
- 35496
- DOI
- 10.1002/smll.201201614
- Resolver ID
- CaltechAUTHORS:20121115-151311708
- Department of Energy (DOE)
- Kavli Nanoscience Institute
- Center for Integrated Nanotechnologies (CINT)
- Created
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2012-11-15Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Kavli Nanoscience Institute