The effect of charge transfer on the transition temperatures of binary alloys

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Abstract

Short range pair interactions are derived in order to calculate the Madelung energy of random binary alloys. It is pointed out that the energy contribution due to charge fluctuations is proportional to the on-site term in mean field theory. The effect of charge transfer on phase transitions is then demonstrated in the case of CuxAu1-x systems. In our example, it is found that by including charge corrections the transition temperatures are in better agreement with experiment than when using the bare generalized peturbation method pair interactions.

Original languageEnglish
Pages (from-to)737-743
Number of pages7
JournalPhilosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume73
Issue number5
Publication statusPublished - May 1996

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Mean field theory
Binary alloys
binary alloys
Superconducting transition temperature
Charge transfer
Phase transitions
transition temperature
charge transfer
Experiments
interactions
energy

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "Short range pair interactions are derived in order to calculate the Madelung energy of random binary alloys. It is pointed out that the energy contribution due to charge fluctuations is proportional to the on-site term in mean field theory. The effect of charge transfer on phase transitions is then demonstrated in the case of CuxAu1-x systems. In our example, it is found that by including charge corrections the transition temperatures are in better agreement with experiment than when using the bare generalized peturbation method pair interactions.",
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AB - Short range pair interactions are derived in order to calculate the Madelung energy of random binary alloys. It is pointed out that the energy contribution due to charge fluctuations is proportional to the on-site term in mean field theory. The effect of charge transfer on phase transitions is then demonstrated in the case of CuxAu1-x systems. In our example, it is found that by including charge corrections the transition temperatures are in better agreement with experiment than when using the bare generalized peturbation method pair interactions.

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