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Updated: Jan 24, 2026
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Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
Published on: October 5, 2013
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Thermally driven anomalous Hall effect transitions in FeRh.
Adrian Popescu1, Pablo Rodriguez-Lopez2,3, Paul M Haney4
1Department of Physics, University of South Florida, Tampa, Florida 33620, USA.
Physical Review. B
|May 17, 2019
Summary
Iron rhodium (FeRh) alloys show tunable magnetic properties useful for spintronics. This study reveals FeRh
Area of Science:
- Condensed matter physics
- Materials science
- Spintronics
Background:
- Controllable magnetic phase transitions are crucial for advanced spintronics applications.
- Iron rhodium (FeRh) is a metallic alloy known for its thermally driven antiferromagnetic-to-ferromagnetic phase transition.
Purpose of the Study:
- Investigate the electronic structure of FeRh.
- Analyze its intrinsic anomalous Hall, spin Hall, and anomalous Nernst response properties.
- Understand the influence of magnetic phase transitions on these properties.
Main Methods:
- First-principles calculations
- Electronic structure analysis
- Berry curvature calculations
Main Results:
- Energy band structures and Berry curvatures show significant signatures in Hall effects.
- Anomalous Hall and Nernst effects are suppressed in the antiferromagnetic (AFM) state.
- A sign change in spin Hall conductivity occurs across the AFM-to-ferromagnetic transition.
Conclusions:
- FeRh exhibits distinct Hall effects related to its magnetic phases.
- FeRh can function as a spin current detector, distinguishing spin Hall effects.
- The material's phase transition offers a scheme for spin current detection.
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