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Title: Structural perturbations within nanocrystalline Cu probed by EXAFS
Authors: Johannessen, B
Kluth, P
Glover, CJ
Foran, GJ
Ridgway, MC
Keywords: Beams
Electromagnetic radiation
Heat treatments
Ionizing radiations
Transition elements
Issue Date: 31-Jan-2005
Publisher: Australian Institute of Physics
Citation: Johannessen, B., Kluth, P., Glover, C. J., Foran, G. J., & Ridgway, M. C. (2005). Structural perturbations within nanocrystalline Cu probed by EXAFS. Paper presented to the 29th Condensed Matter and Materials Meeting, "Australian Institute of Physics Sixteenth Biennial Congress", Canberra, 2005, 31 January - 4 February 2005. Retrieved from:
Abstract: Extended x-ray absorption fine structure (EXAFS) spectroscopy has emerged as an invaluable synchrotron radiation technique for determining the short-range atomic structure in a vast range of diverse materials. Cu nanocrystals (NCs) were synthesised by high-energy ion beam implantation and thermal annealing. We present results of EXAFS measurements determining the first nearest neighbour Cu environment and quantify significant concentration- and annealing-temperature-dependent structural perturbations as compared to a bulk Cu standard. In particular we observe and explain an enhanced structural disorder involving both a suppressed coordination number and bondlength contraction.
ISBN: 0-9598064-8-2
Appears in Collections:Conference Publications

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