Short Range Order in Ag-Mg Alloys

  • Yan Liu
  • R. G. Jordan
  • S. L. Qiu
  • G. M. Stocks
Chapter
Part of the NATO ASI Series book series (NSSE, volume 256)

Abstract

We have calculated the electronic structure in a series of disordered Ag Mg alloys. We find that there are well-defined, parallel regions of Fermi surface in the 〈110〉 directions that can give rise to concentration waves (as first proposed by Györffy and Stocks in Cu-Pd alloys). We show that the vector spanning such regions is directly related to the positions of satellite peaks observed in the electron diffuse scattering and that the calculated variation of the peak splittings with Mg content is in excellent agreement with the experimentally measured values.

Keywords

Fermi Surface Parallel Region Direct Correlation Function Range Order Parameter Satellite Spot 
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References

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Copyright information

© Springer Science+Business Media Dordrecht 1994

Authors and Affiliations

  • Yan Liu
    • 1
  • R. G. Jordan
    • 1
  • S. L. Qiu
    • 1
  • G. M. Stocks
    • 2
  1. 1.Alloy Research Center, Department of PhysicsFlorida Atlantic UniversityBoca RatonUSA
  2. 2.Metals and Ceramics DivisionOak Ridge National LaboratoryOak RidgeUSA

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