Coherent spin dynamics in nanopatterned ferromagnet-semiconductor hybrids at room-temperature

Hohage, P E; Nannen, J; Bacher, G; Wahle, M; Fischer, S F; Kunze, U; Reuter, D; Wieck, A D

doi:10.1063/1.3295508

Title: Coherent spin dynamics in nanopatterned ferromagnet-semiconductor hybrids at room-temperature

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Abstract

We used time-resolved Kerr rotation to study the coherent spin dynamics of electrons in Py-GaAs hybrid structures up to room temperature. The geometry of the nanopatterned Py wires was varied in a wide range to modify the fringe field from the ferromagnets and thus the Larmor frequency of the precessing electron spins compared to a reference. At room temperature, the observed fringe field effect is in good agreement with theory while at low temperatures additional strain effects occur.

Authors:

Hohage, P E; Nannen, J; Bacher, G ^[1]; Wahle, M; Fischer, S F; Kunze, U ^[2]; Reuter, D; Wieck, A D ^[3]

Werkstoffe der Elektrotechnik and CeNIDE, Universitaet Duisburg-Essen, Bismarckstrasse 81, D-47057 Duisburg (Germany)
Lehrstuhl fuer Werkstoffe und Nanoelektronik, Ruhr-Universitaet Bochum, Universitaetsstrasse 150, D-44780 Bochum (Germany)
Lehrstuhl fuer Angewandte Festkoerperphysik, Ruhr-Universitaet Bochum, Universitaetsstrasse 150, D-44780 Bochum (Germany)

Publication Date:: Mon Jan 04 00:00:00 EST 2010

OSTI Identifier:: 21371422

Resource Type:: Journal Article

Journal Name:: AIP Conference Proceedings

Additional Journal Information:: Journal Volume: 1199; Journal Issue: 1; Conference: 29. international conference on the physics of semiconductors, Rio de Janeiro (Brazil), 27 Jul - 1 Aug 2008; Other Information: DOI: 10.1063/1.3295508; (c) 2009 American Institute of Physics; Journal ID: ISSN 0094-243X

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRONS; FERROMAGNETIC MATERIALS; FERROMAGNETISM; GALLIUM ARSENIDES; KERR EFFECT; MOLECULAR BEAM EPITAXY; NANOSTRUCTURES; ROTATION; SEMICONDUCTOR MATERIALS; SPIN; STRAINS; TEMPERATURE DEPENDENCE; TIME RESOLUTION; WIRES; ANGULAR MOMENTUM; ARSENIC COMPOUNDS; ARSENIDES; CRYSTAL GROWTH METHODS; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; ELEMENTARY PARTICLES; EPITAXY; FERMIONS; GALLIUM COMPOUNDS; LEPTONS; MAGNETIC MATERIALS; MAGNETISM; MATERIALS; MOTION; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PNICTIDES; RESOLUTION; TIMING PROPERTIES

Citation Formats


                    Hohage, P E, Nannen, J, Bacher, G, Wahle, M, Fischer, S F, Kunze, U, Reuter, D, and Wieck, A D. Coherent spin dynamics in nanopatterned ferromagnet-semiconductor hybrids at room-temperature.  United States: N. p., 2010. 
        Web.  doi:10.1063/1.3295508.

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                    Hohage, P E, Nannen, J, Bacher, G, Wahle, M, Fischer, S F, Kunze, U, Reuter, D, & Wieck, A D. Coherent spin dynamics in nanopatterned ferromagnet-semiconductor hybrids at room-temperature.  United States.  https://doi.org/10.1063/1.3295508

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                    Hohage, P E, Nannen, J, Bacher, G, Wahle, M, Fischer, S F, Kunze, U, Reuter, D, and Wieck, A D. 2010.  
        "Coherent spin dynamics in nanopatterned ferromagnet-semiconductor hybrids at room-temperature".  United States.  https://doi.org/10.1063/1.3295508.

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@article{osti_21371422,

  title        = {Coherent spin dynamics in nanopatterned ferromagnet-semiconductor hybrids at room-temperature},

  author       = {Hohage, P E and Nannen, J and Bacher, G and Wahle, M and Fischer, S F and Kunze, U and Reuter, D and Wieck, A D},

  abstractNote = {We used time-resolved Kerr rotation to study the coherent spin dynamics of electrons in Py-GaAs hybrid structures up to room temperature. The geometry of the nanopatterned Py wires was varied in a wide range to modify the fringe field from the ferromagnets and thus the Larmor frequency of the precessing electron spins compared to a reference. At room temperature, the observed fringe field effect is in good agreement with theory while at low temperatures additional strain effects occur.},

  doi          = {10.1063/1.3295508},

  url          = {https://www.osti.gov/biblio/21371422},
  journal      = {AIP Conference Proceedings},

  issn         = {0094-243X},

  number       = 1,

  volume       = 1199,

  place        = {United States},

  year         = {Mon Jan 04 00:00:00 EST 2010},

  month        = {Mon Jan 04 00:00:00 EST 2010}

}

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