French hospital trials ‘socially assistive’ robots to help the elderly

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A research team led by Professor Sir Andre Geim has found that good old graphene can reach a record-breaking above 100% in magnetic fields of standard permanent magnets (of about 1. The phenomenon of linear magnetoresistance has puzzled scientists for more than a century since it was first observed.

This is orders-of-magnitude higher than magnetoresistivity found in any other system at such temperatures.the intrinsic behavior in this regime is often obscured by charge inhomogeneity but thermal excitations can overcome the disorder at elevated temperatures and create an electron–hole plasma of Dirac fermions.Undoped high-quality graphene at room temperature offers an opportunity to explore an entirely new regime that in principle could be discovered even a decade ago but somehow was overlooked by everyone.

the plasma exhibits giant parabolic magnetoresistivity reaching more than 100 per cent in a magnetic field of 0.This is perhaps not so surprising because the cooler your sample the more interesting its behavior usually becomes.

The current Manchester work provides important clues about the origins of the strange metal behavior and of the linear magnetoresistance.

Researchers from The University of Manchester have finally reported record-high magnetoresistance that appears in graphene under ambient conditions.all you have to do is select it from the upgrade plan tab and checkout.

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