TITLE

Spin-filter devices based on resonant tunneling antisymmetrical magnetic/semiconductor hybrid structures

AUTHOR(S)
Xu, H.Z.; Yafei Zhang
PUB. DATE
March 2004
SOURCE
Applied Physics Letters;3/15/2004, Vol. 84 Issue 11, p1955
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Spin filter devices based on resonant tunneling antisymmetrical magnetic-barrier structures are proposed and the spin-polarization properties are described. These devices can be realized by depositing one or two ferromagnetic stripes with perpendicular magnetization on top of two-dimensional electron gas. It is remarkable that the spin-filter efficiency of the transmission probability and the conductance through these devices could be reached completely (∼100%) in resonance, and that constant voltage applied to the metallic stripe of the systems could tune the spin polarization. These interesting features may lead to a practical voltage controlled spin filter. © 2004 American Institute of Physics.
ACCESSION #
12512667

 

Related Articles

  • GLOBAL MAGNETICS.  // MSW Management;Jul/Aug2007, Vol. 17 Issue 5, p89 

    The article evaluates the self-cleaning crossbelt magnetic separators from Mastermag.

  • How industrial plants benefit from apron feeder magnetic separators. Shuttleworth, Timothy G.; Stipicic, Carlos // Mining Engineering;Jan2011, Vol. 63 Issue 1, p41 

    The article explores the use of apron feeder magnetic separators at industrial plants. Apron feeders utilize sprockets and caterpillars, while belt feeders utilize rubber belts featuring motorized head pulleys. Among the differences of apron magnets from magnetic separation in mineral processing...

  • Quantitative characterization of magnetic separators: Comparison of systems with and without integrated microfluidic mixers. Torsten Lund-Olesen; Henrik Bruus; Mikkel Hansen // Biomedical Microdevices;Apr2007, Vol. 9 Issue 2, p195 

    Abstract  We present two new types of microfluidic passive magnetic bead separator systems as well as methods for performing quantitative characterizations of them. Both systems consist of a microfluidic channel with long rectangular magnetic elements of permalloy that are placed by the...

  • Fernox get a new buddy.  // Builders Merchants Journal;Nov2005, p38 

    Reports on the launch of Boiler Buddy magnetic filter for removal of dirt and debris for heating systems, by Fernox. Suitability of the Boiler Buddy to connect any condensing boiler; Citations on how the magnetic filter works; Features of the product.

  • Slon Magnetic Separator Applied to Upgrading the Iron Concentrate. Dahe, Xiong // Physical Separation in Science & Engineering;Jun2003, Vol. 12 Issue 2, p63 

    SLon vertical ring and pulsating high gradient magnetic separator is a new generation of a highly efficient equipment for processing weakly magnetic minerals[ 1 - 3 ]. It possesses advantages of a large beneficiation ratio, high recovery, a matrix that cannot easily be blocked and excellent...

  • Low-intensity magnetic separation: principal stages of a separator development - what is the next step? Bikbov, M.A.; Karmazin, V.V.; Bikbov, A.A. // Physical Separation in Science & Engineering;Jun2004, Vol. 13 Issue 2, p53 

    An analysis of the technological limitations of magnetite quartzite beneficiation illustrated the imperfections of the traditional classification by size. As an alternative to size classification, separation by the degree of magnetite grain liberation can be employed. Comparative analysis of the...

  • Slon magnetic separators applied in the ilmenite processing industry. Dahe, Xiong // Physical Separation in Science & Engineering;Sep/Dec2004, Vol. 13 Issue 3/4, p119 

    SLon vertical ring pulsating high gradient magnetic separators possess the advantages of a large beneficial ratio, high processing efficiency, strong adaptability, high resistance of the magnetic matrix to clogging, and high equipment availability. In recent years, these separators have been...

  • Magnets Do the Craziest Things! Hills, Robert F. // Saturday Evening Post;7/25/1953, Vol. 226 Issue 4, p24 

    The article discusses the things that magnets could do. As a salesman of Eriez, largest magnet makers in the world, found that magnets could be embarrassing when offered to the customers. A salesman has been in trouble when the secretary of the plant engineer yip as her hair was grabbed by the...

  • Magnetic filter keeps fluids clean.  // Machine Design;6/16/2005, Vol. 77 Issue 12, p74 

    Features Magnom filter from FCS. Use of magnetic fields in capturing ferrous and nonferrous objects in motorcycle engines; Applications of the filter; Resistance to fluid pressures and temperatures.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics