Magnetic Domains in Magnetostrictive Fe-Ga Alloys
Lorentz microscopy was applied to the observation of magnetic domains in iron-gallium (Fe-Ga) alloys. Results did not show any link between the magnetic domains and the magnetostriction enhancement by Ga addition, but did reveal that the drastic decrease in magnetostriction for Fe-31.2 at. % Ga was due to the presence of large scale precipitates. Magnetic domain features did not change in the alloys of A2, D0{sub 3}, A2+D0{sub 3}, A2+B2+D0{sub 3}, and A2+fine scale precipitates. Large scale precipitates within the slow-cooled Fe-31.2 at. % Ga affected both the distribution and wall motion of magnetic domains.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-07CH11358
- OSTI ID:
- 947172
- Report Number(s):
- IS-J 7340
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 18 Vol. 93; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetoelasticity of Fe-Si single crystals
Effects of phase transformation on the microstructures and magnetostriction of Fe-Ga and Fe-Ga-Zn ferromagnetic shape memory alloys
Influence of composition and heat treatment on damping and magnetostrictive properties of Fe–18%(Ga + Al) alloys
Journal Article
·
Tue Apr 20 00:00:00 EDT 2010
· Journal of Applied Physics
·
OSTI ID:985361
Effects of phase transformation on the microstructures and magnetostriction of Fe-Ga and Fe-Ga-Zn ferromagnetic shape memory alloys
Journal Article
·
Thu May 07 00:00:00 EDT 2015
· Journal of Applied Physics
·
OSTI ID:22409942
Influence of composition and heat treatment on damping and magnetostrictive properties of Fe–18%(Ga + Al) alloys
Journal Article
·
Wed Jul 16 00:00:00 EDT 2014
· Acta Materialia
·
OSTI ID:1227144