Electronic devices 'could be revolutionised by TMR'

e14news — Thu, 07 Oct 2021 02:26:59 GMT

Current Revision posted to Documents by e14news on 10/7/2021 2:26:59 AM
The memory contained in future electronic devices could be improved by a process called tunnel magnetoresistance (TMR), according to a team of researchers.

Scientists at Helmholtz-Zentrum Berlin and the French facility CNRS separated two thin layers of magnetic material using an insulator that is about a millionth of a millimetre thick, which creates a tunnel that only a few electrons can get through.

When researchers oriented the intrinsic angular momentum - or spin - of these electrons in both layers of the TMR device, a form of memory that is capable of rapid and repeated data writes is formed.

This process allows information to be stored permanently, which scientists involved in the project believe could improve random access memory.

By manipulating the electron spins using an electric field on the insulator, the tunnelling of such particles can also be influenced.

As a result of the "switched state" of the item once current is removed, scientists believe the model could be used for PC memory using very little power.

According to Tech On, the process could realise 10Gb MRAM using perpendicular magnetisation film.