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.
| Original language | English |
|---|---|
| Pages (from-to) | 64-68 |
| Number of pages | 5 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 304 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Sep 1 |
Keywords
- Amorphous Ge-Fe alloys
- High Curie temperature
- Magnetic properties
- Thin films
ASJC Scopus subject areas
- Condensed Matter Physics
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Song, S. H., & Lim, S. H. (2006). Magnetic properties of amorphous Ge-Fe thin films. Journal of Magnetism and Magnetic Materials, 304(1), 64-68. https://doi.org/10.1016/j.jmmm.2006.01.133