November 2020

Researchers from the Tokyo University of Science have developed an all-solid redox device composed of magnetite (Fe₃O₄) thin film and a solid electrolyte containing lithium ions that successfully manipulated the magnetization angle at room temperature.

The researchers say they have developed a surprisingly simple yet efficient strategy to manipulate the magnetization angle in magnetite, a typical ferromagnetic material. This magnetization rotation is caused by the change of spin-orbit coupling due to electron injection into a ferromagnet. The new approach leverages a reversible electrochemical reaction.

Researchers from the University of New South wales (UNSW) discovered that removing random doping in quantum electronic devices dramatically improves their reproducibility. This could be highly useful in creating future quantum spintronics devices.

In their paper, the researchers show that the reproducibility problem in quantum devices comes from the random spatial position of dopants in quantum devices. This is why removing the dopants has such a big effect.