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Updated: Jan 14, 2026
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Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
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Anomalous Hall, Nernst, and spin Hall effects in CoMnCrGa: a first-principles study
Anurodh Sharma1, Srivani Javvaji2, Lakhansingh Kowachi1
1Department of Pure and Applied Physics, Guru Ghasidas Vishwavidyalaya, Koni, Bilaspur 495009, Chhattisgarh, India.
Summary
The quaternary Heusler compound CoMnCrGa shows potential for spintronics and thermoelectric devices. Its high spin polarization and tunable anomalous Nernst conductivity make it ideal for advanced applications.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Spintronics
Background:
- Quaternary Heusler compounds are explored for advanced electronic applications.
- Spintronic devices require materials with high spin polarization and efficient spin-to-charge conversion.
Purpose of the Study:
- To investigate the electronic and transport properties of CoMnCrGa using first-principles calculations.
- To evaluate its potential for spintronic and transverse thermoelectric applications.
Main Methods:
- Comprehensive first-principles calculations were employed.
- Electronic band structure and Berry curvature were analyzed.
- Anomalous Hall and Nernst conductivities were computed.
Main Results:
- CoMnCrGa exhibits a ferromagnetic ground state with nearly half-metallic character and high spin polarization.
- Significant anomalous Hall and Nernst conductivities were predicted near the Fermi level.
- Large spin Hall conductivity was observed due to strong spin-orbit coupling and Berry curvature.
Conclusions:
- CoMnCrGa is a promising material for spintronic and spin-caloritronic devices.
- Its tunable anomalous Nernst conductivity and robust ferromagnetism are key advantages.
- The material offers potential for next-generation thermoelectric and spintronic applications.
Keywords:
Nernst Hall effectSpin Hall effectanomalous Hall effectelectronic structuremagnetocaloric effectMore Related Videos
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