Asymmetric reversal in aged high concentration CuMn alloy

No Thumbnail Available
File version
Author(s)
Barnsley, LC
Gray, E MacA
Webb, CJ
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2013
Size
File type(s)
Location
License
Abstract

The magnetic hysteresis loops of an aged Cu81.2Mn18.8 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.

Journal Title

Journal of Physics: Condensed Matter

Conference Title
Book Title
Edition
Volume

25

Issue

8

Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
Item Access Status
Note
Access the data
Related item(s)
Subject

Condensed matter physics

Electronic and magnetic properties of condensed matter; superconductivity

Materials engineering

Nanotechnology

Persistent link to this record
Citation
Collections