Publication: Spin-polarized electron momentum density distributions in Pd<inf>1-x</inf>Co<inf>x</inf>alloys
Issued Date
2002-01-01
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ISSN
01631829
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2-s2.0-17344379032
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Mahidol University
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SCOPUS
Bibliographic Citation
Physical Review B - Condensed Matter and Materials Physics. Vol.65, No.2 (2002), 244421-244427
Suggested Citation
J. W. Taylor, J. A. Duffy, J. Poulter, A. M. Bebb, M. J. Cooper, J. E. McCarthy, D. N. Timms, J. B. Staunton, F. Itoh, H. Sakurai, B. L. Ahuja Spin-polarized electron momentum density distributions in Pd<inf>1-x</inf>Co<inf>x</inf>alloys. Physical Review B - Condensed Matter and Materials Physics. Vol.65, No.2 (2002), 244421-244427. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/20243
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Title
Spin-polarized electron momentum density distributions in Pd<inf>1-x</inf>Co<inf>x</inf>alloys
Abstract
The spin-polarized momentum densities of disordered single-crystal Pd1-xCoxhave been studied using the magnetic Compton scattering technique, for the compositions x = 0.6 and 0.28. Magnetic Compton profiles have been measured along the three principle crystallographic directions in each sample, and compared with theoretical profiles calculated using the Korringa-Kohn-Rostoker coherent-potential approximation method. The calculated and measured spin-polarized momentum distributions, as revealed by their magnetic Compton profiles, are in excellent agreement. However the calculated spin moment for the composition with x = 0.6 is some 10% smaller than that measured experimentally, and for x = 0.28, the deviation becomes 15%. These differences are attributed to the effect of order in the samples, which becomes increasingly important in the Pd-rich side of the phase diagram. The orbital component to the magnetization has been determined as 0.08 and 0.18μBfor Pd0.4Co0.6and Pd0.72Co0.28, respectively.