Researchers Put a New Spin on Graphene Chips

Among the PC-plus polycarbonate candidate substances for future processor production is graphene, a sheet of carbon atoms arranged in hexagonal lattice. One hurdle to the usage of graphene as a semiconductor material in chips as well as for storage is a lack of magnetism.

A semiconductor approach called doping may be used with the addition of magnetic impurities to induce magnetism in graphene. But the doping process will disrupt the valuable properties that are electronic of the stuff.

Investigators in the University California at Riverside may have found a means to get magnetism in graphene while maintaining electronic equipment properties. By transferring a graphene sheet very close to an electrical insulator with magnetic properties they claim to have overcome the difficulty.

The investigators said the technique may be applied in chips that use electronic spin to store data, also called spintronics, if perfected.

“Placing graphene on an insulating magnetic substrate could make the substance ferromagnetic without touching its extraordinary conductivity,” the investigators claimed in summarizing the outcomes.

“The graphene assumes electronic properties that are new to ensure that new quantum phenomena can appear. These properties can cause new electronic devices which can be more sturdy and multifunctional.”