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Manipulating spin and charge in magnetic semiconductors using superconducting vortices

2005/05/01 by Mona Berciu, Tatiana G. Rappoport, B. Janko +1 · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.mes-hall #cond-mat.supr-con

paper · pdf · doi:10.1038/nature03559

published as Nature 435, 71-75 (2005) - 05/05/2005 · 13 pages, 4 figures

openalex publication_date 2005/05/01 · arxiv created 2005/05/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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.

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