Asymmetric reversal in aged high concentration CuMn alloy.
J Phys Condens Matter
; 25(8): 086003, 2013 Feb 27.
Article
in En
| MEDLINE
| ID: mdl-23361044
The magnetic hysteresis loops of an aged Cu(81.2)Mn(18.8) alloy sample exhibit significant asymmetric reversal at low temperatures, with high sensitivity to the cooling field. Much of the observed behaviour was explained by considering an ensemble of coherent, ferromagnetically aligned clusters interacting with a randomized spin glass component. A modified Stoner-Wohlfarth model was successfully applied to the data using Monte Carlo simulations, in order to gain insight into the dependence of the cluster shape anisotropy and exchange anisotropy on the cooling field. This model suggested that ferromagnetic clusters grow as the cooling field increases.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Copper
/
Alloys
/
Magnetic Fields
/
Magnets
/
Glass
/
Manganese
Type of study:
Clinical_trials
/
Health_economic_evaluation
Language:
En
Journal:
J Phys Condens Matter
Journal subject:
BIOFISICA
Year:
2013
Document type:
Article
Affiliation country:
Australia
Country of publication:
Reino Unido