Magnetic graphene (that can switch between conductor and insulator) may represent a novel way to create 2-dimensional materials. It could also be used in the development of next-generation electronics and memory storage devices.

“Magnetism from the arrangement of electron spins is used in most memory devices, and is important for developing new technologies such as spintronics, which could transform the way in which computers process information.
Despite graphene’s extraordinary strength and conductivity, the fact that it is not magnetic limits its application in areas such as magnetic storage and spintronics, and so researchers have been searching for magnetic materials which could be incorporated with graphene-based devices.


“Despite its amazing qualities, graphene is not magnetic. This limits its application in magnetic storage and spintronics.
Scientists have, therefore, been searching for a magnetic material which they could incorporate with graphene-based devices.
In this latest study, researchers squashed layers of trithiohypophosphate under high pressure – approximately 10 gigapascals. Under that pressure, the material switched between conductor and insulator, a phenomenon we call a Mott transition. They could also change its conductivity by altering the pressure….
FePS3 , which scientists sometimes refer to as magnetic graphene, can switch from insulator to conductor, researchers found. The material’s ability to switch occurs under high pressure.
Scientists at the University of Cambridge believe this phenomenon has potential applications in next-generation electronics. It could also be used in the development of memory storage devices.
The researchers, from the University of Cambridge, Institut Laue-Langevin, and Diamond Light Source, wrote about their work in the prestigious journal Physical Review Letters (citation below). The authors were C. R. S. Haines, M. J. Coak, A. R. Wildes, G. I. Lampronti, C. Liu, P. Nahai-Williamson, H. Hamidov, D. Daisenberger, and S. S. Saxena.
The authors say that their findings will aid in understanding the dynamic relationship between the material’s structural and electronic properties. Magnetic graphene may represent a novel way to create 2-dimensional materials.

Read full article here Magnetic graphene can switch between conductor and insulator  See also Magnetic graphene switches between insulator and conductor

Source: Alerts

Read more graphene news over here.

Spread the graphene