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Stable magnetostructural coupling with tunable magnetoresponsive effects in hexagonal ferromagnets
Enke Liu1, Wenhong Wang, Lin Feng
1State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China.
Nature Communications
|May 31, 2012
Summary
Researchers achieved stable magnetostructural coupling in MnNiGe:Fe alloys, enabling tunable magnetoresponsive effects over a wide temperature range for advanced material applications.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Solid State Chemistry
Background:
- Magnetostructural coupling is key to magnetoresponsive effects in martensitic-transition systems.
- Combining these effects can lead to multifunctional material applications.
Purpose of the Study:
- To demonstrate stable magnetostructural coupling in MnNiGe:Fe alloys.
- To achieve tunable magnetoresponsive effects over a broad temperature range.
Main Methods:
- Investigated MnNiGe:Fe alloys.
- Analyzed magnetostructural coupling and magnetoresponsive effects.
- Studied magnetic-field-induced martensitic transition.
Main Results:
- Achieved stable magnetostructural coupling from 350 K to 70 K.
- Demonstrated tunable magnetoresponsive effects in MnNiGe:Fe alloys.
- Observed a magnetic-field-induced martensitic transition from paramagnetic austenite to ferromagnetic martensite.
Conclusions:
- Stable magnetostructural coupling is feasible in hexagonal phase-transition systems.
- Broad tunability of magnetoresponsive effects can be attained.
- MnNiGe:Fe alloys show potential for multifunctional applications.
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