TY - JOUR
T1 - Magnetic properties of amorphous Ge-Fe thin films
AU - Song, S. H.
AU - Lim, S. H.
N1 - Funding Information:
Financial support from the Research Center of Advanced Magnetic Materials at CNU is gratefully acknowledged. The authors wish to thank W. B. Paek for her help in structural characterizations.
PY - 2006/9
Y1 - 2006/9
N2 - 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.
AB - 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.
KW - Amorphous Ge-Fe alloys
KW - High Curie temperature
KW - Magnetic properties
KW - Thin films
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U2 - 10.1016/j.jmmm.2006.01.133
DO - 10.1016/j.jmmm.2006.01.133
M3 - Article
AN - SCOPUS:33646874375
VL - 304
SP - 64
EP - 68
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - 1
ER -