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An ab initio investigation of how residual resistivity can decrease when an alloy is deformed
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Lowitzer, S., Koedderitzsch, D., Ebert, H., Tulip, P. R., Marmodoro, A. and Staunton, Julie B. (2010) An ab initio investigation of how residual resistivity can decrease when an alloy is deformed. EPL (Europhysics Letters), Vol.92 (No.3). Article: 37009. doi:10.1209/0295-5075/92/37009 ISSN 0295-5075.
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Official URL: http://dx.doi.org/10.1209/0295-5075/92/37009
Abstract
For a class of transition metal materials residual resistivity is observed to decrease when the materials are deformed and short-range order is removed. We investigate this counter-intuitive behavior with an ab initio theoretical study of the residual resistivity of several late transition metal-rich disordered alloys. The calculations are performed using the Korringa-Kohn-Rostoker (KKR) method applied to the Kubo-Greenwood formalism. The electronic effects arising from short-range ordering and clustering within the disorder are described using the non-local coherent-potential approximation (NL-CPA). We find a simple, general explanation of this K-state-like effect in terms of changes to the amplitude for d-electron hopping between majority late transition metal nearest-neighbor atoms at the Fermi energy. Copyright (C) EPLA, 2010
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | EPL (Europhysics Letters) | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0295-5075 | ||||
Official Date: | November 2010 | ||||
Dates: |
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Volume: | Vol.92 | ||||
Number: | No.3 | ||||
Number of Pages: | 5 | ||||
Page Range: | Article: 37009 | ||||
DOI: | 10.1209/0295-5075/92/37009 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
Funder: | DFG, Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | SPP 1145, SFB 689 |
Data sourced from Thomson Reuters' Web of Knowledge
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