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

Journal Article · Mon Jan 04 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3295508· OSTI ID:21371422

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

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

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.

• OSTI ID: 21371422
• Journal Information: AIP Conference Proceedings, Vol. 1199, 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; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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