spintronics tagged posts

André Dankert, Saroj P. Dash. Electrical gate control of spin current in van der Waals heterostructures at room temperature. Nature Communications, 2017; 8: 16093 DOI: 10.1038/NCOMMS16093

Graphene Flagship researchers at Chalmers University of Technology in Gothenburg, Sweden have showed a graphene-based spin field-effect transistor operating at room temperature. Using the spin of the electrons in graphene and other layered material heterostructures they have produced working devices as a step towards integrating spintronic logic and memory devices. Current semiconductor logic devices within our computers use the flow and control of electronic charge for information processing. Spintronic memory devices use electron spin to store information...

MELRAM cell and the electric scheme for the magnetic state identification.

A team from France and Russia has now developed a magnetoelectric random access memory (MELRAM) cell that has the potential to increase power efficiency, and decrease heat waste, by orders of magnitude for read operations at room temperature. The research could aid production of devices such as instant-on laptops, close-to-0-consumption flash drives, and data storage centers that require much less air conditioning.

Billions of transistors can now be etched onto single chips in a space the size of a dime, but at some point, increasing this number for even better performance using the same space will not be possible...

These images show light patterns generated by a rhenium-based crystal using a laser method called optical second-harmonic rotational anisotropy. At left, the pattern comes from the atomic lattice of the crystal. At right, the crystal has become a 3-D quantum liquid crystal, showing a drastic departure from the pattern due to the atomic lattice alone. Credit: Hsieh Lab/Caltech

Physicists at the Institute for Quantum Information and Matter at Caltech have discovered the first 3D quantum liquid crystal – a new state of matter that may have applications in ultrafast quantum computers of the future...

Scientists find twisting 3D Raceway for Electrons in Nanoscale Crystal Slices

Mysterious quantum properties in material point to new applications in electronics. Researchers have created an exotic 3D racetrack for electrons in ultrathin slices of a nanomaterial they fabricated at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) The international team of scientists from Berkeley Lab, UC Berkeley, and Germany observed, for the first time, a unique behavior in which electrons rotate around one surface, then through the bulk of the material to its opposite surface and back.

The possibility of developing “topological matter” that can carry electrical current on its surface without loss at room temperature has attracted significant interest in the research communit...