Researchers have achieved a major breakthrough by generating quantum spin currents in graphene—without relying on bulky ...

Scientists from TU Delft (The Netherlands) have observed quantum spin currents in graphene for the first time without using ...

A Hall effect sensor could measure the magnetic slip angle of the stir bar, and provide useful readings of liquid viscosity. ... The circuit uses an integrator and a comparator.

This paper demonstrates a self-powered vibration sensor based on a three-dimensional (3D) graphene field effect transistor (GFET). A 3D microtubular cantilever structure is adopted to develop the ...