Tokyo University of Science: Artificial fabrication of high performance magnetic materials – Next Generation Spintronics Devices
Precise control of pulsed laser deposition equipment and development technology of high performance magnetic material L10 – FeNi derived from meteorite was developed.
With the depletion of scarce resources and the growing seriousness of energy problems, realization of high performance magnetic materials with low environmental burden is required.
“L10 type FeNi ordered alloy (L10 – FeNi)”
It has a special structure in which iron (Fe) and nickel (Ni) are regularly arranged on atomic scale.
It is excellent in magnetic properties called magnetic moment and magnetic anisotropy.
Research group:
Analysis of natural meteorite and analysis of electron spin state have been carried out.
In this research, focusing on pulsed laser deposition method, artificial creation of L10-FeNi was performed.
The pulsed laser deposition method is characterized by being able to produce an almost ideal thin film at the atomic layer scale.
Through this study, the research group demonstrated for the first time in the world that pulsed laser deposition is useful for making L10 – FeNi.
L10 – FeNi
It shows rare earth free high magnetic function.
Applications such as next generation spintronic devices and highly efficient motors for electric vehicles.
As a new environmental energy technology, we can expect various social developments.
Physical property analysis:
SPring-8: X-ray structural analysis using ‘BL 46 XU’
Superconducting Quantum Interference Magnetometer: The University of Tokyo Institute for Physical Properties,
Atomic Force Microscope: Tokyo University of Science
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