Guo, Qiang and Landau, Peri and Hosemann, Peter and Wang, Yongqiang and Greer, Julia R. (2013) Helium Implantation Effects on the Compressive Response of Cu Nanopillars. Small, 9 (5). pp. 691-696. ISSN 1613-6810. http://resolver.caltech.edu/CaltechAUTHORS:20121115-151311708
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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.
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| 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. | |||||||||
| Group: | Kavli Nanoscience Institute | |||||||||
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| Record Number: | CaltechAUTHORS:20121115-151311708 | |||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20121115-151311708 | |||||||||
| Official Citation: | Guo, Q., Landau, P., Hosemann, P., Wang, Y. and Greer, J. R. (2012), Helium Implantation Effects on the Compressive Response of Cu Nanopillars. Small. doi: 10.1002/smll.201201614 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 35496 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 15 Nov 2012 23:23 | |||||||||
| Last Modified: | 23 Aug 2016 10:21 |
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