Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1805439 | Journal of Magnetism and Magnetic Materials | 2006 | 5 Pages |
Abstract
Thin films of Ge100−xFex (x in at%) alloys, fabricated by thermal co-evaporation, have an amorphous structure at compositions x<∼40, although an unidentified crystalline phase with an FCC symmetry also exists at low Fe content. Magnetization versus temperature curves show that saturation magnetization is non-zero (1 to 2.5 emu/cm3) and remains nearly unchanged up to the highest measured temperature of 350 K. Magnetic hysteresis loops at room temperature show a typical ferromagnetic shape, complete saturation occurring by 1–2 kOe. These results may indicate ferromagnetic ordering at room temperature. No definite tendency is observed in the compositional dependence of saturation magnetization.
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Physical Sciences and Engineering
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Condensed Matter Physics
Authors
S.H. Song, S.H. Lim,