2 research outputs found
Manipulating spin and charge in magnetic semiconductors usingsuperconducting vortices
The continuous need for miniaturization and increase in device speed exerts
pressureon the electronics industry to explore new avenues of information
processing. One possibility is to use the spin to store, manipulate and carry
information. Indeed,spintronics may hold the promise of providing such a new
paradigm. However, all spintronics applications are faced with formidable
challenges in attempting to find fastand efficient ways to create, transport,
detect, control and manipulate spin textures and currents. Here we show how
most of these operations can be performed in arelatively simple manner in a
hybrid system consisting of a superconducting (SC) film and a paramagnetic
diluted magnetic semiconductor (DMS) quantum well (QW). Ourproposal is based on
the observation that the inhomogeneous magnetic fields of the SC create local
spin and charge textures in the DMS, leading to effects such as
Blochoscillations, an unusual Quantum Hall Effect, etc. We exploit the recent
progress in manipulating magnetic flux bundles (vortices) in superconductors
and show howthese can create, manipulate and control the spin textures in DMS.Comment: 13 pages, 4 figure