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Göteborgs universitets publikationer

Magnetic properties of amorphous Fe93Zr7 films: Effect of light ion implantation

Författare och institution:
Atieh Zamani (-); Reda Moubah (-); Martina Ahlberg (Institutionen för fysik (GU)); Henry Stopfel (-); Unnar B Arnalds (-); Anders Hallén (-); Björgvin Hjörvarsson (-); Gabriella Andersson (-); Petra E Jönsson (-)
Publicerad i:
Journal of Applied Physics, 117 ( 14 ) s. 143903
ISSN:
0021-8979
E-ISSN:
1089-7550
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2015
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
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)B0.11 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.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Fysik ->
Den kondenserade materiens fysik
Postens nummer:
235288
Posten skapad:
2016-04-27 12:33
Posten ändrad:
2016-07-05 13:00

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