Physics – Condensed Matter – Materials Science
Scientific paper
2009-02-09
J. Appl. Phys. 105 (2009) 07B109
Physics
Condensed Matter
Materials Science
16 pages, 4 figures
Scientific paper
10.1063/1.3075989
The authors developed a new analysis approach for evaluation of atomic ordering in full-Heusler alloys, which is extension of the commonly used Webster model. Our model can give accurate physical formalism for the degree of atomic ordering in the L21 structure, including correction with respect to the fully disordered A2 structure, i.e., the model can directly evaluate the degree of L21-ordering under a lower ordering structure than the complete B2-ordering structure. The proposed model was applied to full-Heusler Co2FeSi alloy thin films formed by rapid thermal annealing. The film formed at TA = 800 C showed a relatively high degree of L21-ordering of 83 % under a high degree of B2-ordering of 97 %.
Nakane Ryosho
Sugahara Satoshi
Takamura Yota
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