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Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
Published on: November 7, 2017
A TDPAC study of static and dynamic magnetic behaviour
1Physics Department and Centre for the Physics of Materials, McGill University, 3600 University Street, Montreal, QC, H3A 2T8, Canada. webbt@physics.mcgill.ca
Summary
This study applies time differential perturbed γ-γ angular correlation (TDPAC) to magnetic relaxation in a-FexHf100-x systems. Findings confirm partial bond frustration as the key physics governing magnetic fluctuations.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Nuclear Techniques
Background:
- Anisotropic magnetic relaxation presents challenges for characterization.
- Understanding magnetic fluctuations is crucial for materials development.
Purpose of the Study:
- To apply the time differential perturbed γ-γ angular correlation (TDPAC) technique to study magnetic relaxation.
- To investigate the a-FexHf100-x system for insights into magnetic phenomena.
Main Methods:
- Utilized TDPAC to probe magnetic relaxation dynamics.
- Analyzed zero-frequency component decay and phenomenological decay rate (λ).
- Constructed zero-field magnetic phase diagram from static and dynamic data.
Main Results:
- Observed decay of the zero-frequency component characterized by λ.
- Demonstrated consistency between magnetic phase diagram, λ temperature dependence, and partial bond frustration.
- Confirmed that magnetic fluctuations are well-characterized by spectral features, unaffected by static fields or disorder.
Conclusions:
- The a-FexHf100-x system exhibits magnetic behavior governed by partial bond frustration.
- TDPAC is effective for characterizing magnetic fluctuations in complex systems.
- Simple spectral features adequately describe magnetic fluctuations, even under challenging conditions.
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