Magnetic properties of amorphous Fe93Zr7 films: Effect of light ion implantation
2015 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 117, no 14, 143903Article in journal (Refereed) Published
The Curie temperature (T-c) of amorphous FeZr alloys can be greatly enhanced by doping with light elements. In this investigation, ion implantation is used to dope Fe93Zr7 thin films with H, He, B, C, and N. Extended X-ray absorption fine structure measurements confirm that the amorphous structure is preserved upon implantation for all samples, except for the N-implanted sample which is partially crystallized. The Curie temperature increases from 124 K for the pristine FeZr sample to about 400 K for the (FeZr)B-0.11 sample. The increase of T-c is proportional to the increase in the average Fe-Fe distance, which allows us to conclude that the dominant cause of the T-c enhancement of amorphous Fe93Zr7 upon doping is a volume effect.
Place, publisher, year, edition, pages
2015. Vol. 117, no 14, 143903
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-252143DOI: 10.1063/1.4917212ISI: 000352967400008OAI: oai:DiVA.org:uu-252143DiVA: diva2:809395
FunderSwedish Research Council