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Electronic Structure of bcc Cr-Ru Alloys in the Region of Coexisting Antiferromagnetism and Superconductivity

Published online by Cambridge University Press:  28 February 2011

D. D. Johnson  and
W. E. Pickett
D. D. Johnson
Affiliation:
Permanent address: Sandia National Laboratory, Livermore, CA 94550
W. E. Pickett
Affiliation:
Complex Systems Theory Branch, Code 4692, Naval Research Laboratory, Washington, DC 20375-5000
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Abstract

The self-consistent Korringa-Kohn-Rostoker coherent potential approximation (KKR-CPA) method is applied to determine the changes in the Cr electronic structure due to addition of up to 30% Ru. The results provide an interpretation of the coexisting antiferromagnetism and superconductivity in terms of specific pieces of Fermi surface. The strong nesting which occurs for the Cr Fermi surface survives the addition of at least 20% Ru, in agreement with the observed persistence of antiferromagnetism into this region.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 141: Symposium T – Atomic Scale Calculations in Materials Science , 1988 , 115
Copyright
Copyright © Materials Research Society 1989

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