New understanding of semiconductor magnetism revealed

e14news — Thu, 07 Oct 2021 02:53:12 GMT

Current Revision posted to Documents by e14news on 10/7/2021 2:53:12 AM
A team of scientists has pushed forward their understanding of how semiconductors change from an insulator to a metal with a new study.

The group from Princeton University looked into the transition point when electrons in the semiconductor change and found that they formed complex patterns similar to those seen in turbulent fluids.

Ali Yazdani, a professor of physics at the educational establishment, explained that it is the spacial structure of electron waves which show how well a material is likely to conduct electricity, since waves need to flow through the substance without being localised or stuck.

He remarked: "The way in which electrons undergo this transition in certain semiconductors also appears to play a big role in how they become magnetic."

Professor Yazdani described how this recent study found that electrons move in "jagged puddles" and if researchers could find a way of switching the magnetism of the material on and off, then smaller semiconductor chips could be developed.

Meanwhile, a recent report produced by a team of American and Chinese scientists indicated that an electric field can be used to improve the storage and release of hydrogen fuel.