Researchers tune magnetic properties in ferrimagnetic material using electrical pulses
A team led by Professor Jung-Il Hong at DGIST successfully altered the spin configuration of a ferrimagnetic alloy using current pulses to lower its compensation temperature.
Electrical signals adjust magnetic states
The research group applied electrical current pulses directly to the material without changing its composition or thickness. This method lowered the compensation temperature by approximately 110 K compared to previous standards. The study was published in the journal Advanced Functional Materials.
Benefits for memory devices
Ferrimagnets contain two opposing magnetizations that cancel each other out at a specific temperature known as the compensation temperature. Controlling these states near that temperature allows for rapid and efficient manipulation of magnetic properties. Such control is essential for developing high-speed and high-density spintronic memory devices.
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