Magnetism and point defect in B2-type CoFe alloys
| Autor: | Hiroki Ishibashi, N. Tadachi, H. Kohata, Mineo Kogachi |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Condensed matter physics Magnetic moment Mechanical Engineering Demagnetizing field Metals and Alloys General Chemistry Electron magnetic dipole moment Magnetic susceptibility Magnetization Paramagnetism Magnetic anisotropy Magnetic shape-memory alloy Mechanics of Materials Materials Chemistry |
| Zdroj: | Intermetallics. 13:535-542 |
| ISSN: | 0966-9795 |
| DOI: | 10.1016/j.intermet.2004.09.012 |
| Popis: | Magnetic behavior of B2-type Co 1− c Fe c alloys (0.4≤ c ≤0.6) is studied as functions of composition and quenching temperature. Obtained mean magnetic moment shows increase with composition up to c ≈0.52 and then changes its slope. Furthermore, the moment decreases with quenching temperature in the B2-phase region, while it remains constant in the A2-phase region. The relation between the observed magnetic moment and the point defect properties is discussed. As a result, the change in the magnetic moment is found to be proportional to the square of the long-range order parameter. This relation is explained by noting the magnetic moment on Fe atom, which is assumed to depend on the number of nearest neighbor Co atoms. |
| Databáze: | OpenAIRE |
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