Auflistung nach Schlagwort "Magnetic field effects"

Auflistung nach Schlagwort "Magnetic field effects"

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  • Anomalous spin dephasing in (110) GaAs quantum wells: Anisotropy and intersubband effects 
    Döhrmann, S.; Hägele, D.; Rudolph, J.; Bichler, M.; Schuh, D.; Oestreich, Michael (College Park, MD : American Physical Society, 2004)
    The anisotropic spin dephasing in (110) quantum wells (QW) from 6 K up to room temperature was investigated. It was found that intersubband scattering constitutes a new spin dephasing mechanism that is necessary to explain ...
  • Chopped sample heating for quantitative profile analysis of low energy electron diffraction spots at high temperatures 
    Kury, P.; Zahl, P.; Horn-von Hoegen, M.; Voges, C.; Frischat, Hannes; Günter, H.-L.; Pfnür, Herbert; Henzler, M. (College Park, MD : American Institute of Physics, 2004)
    Spot profile analysis low energy electron diffraction (SPA-LEED) is one of the most versatile and powerful methods for the determination of the structure and morphology of surfaces even at elevated temperatures. In setups ...
  • Competition between Kondo Screening and Quantum Hall Edge Reconstruction 
    Heine, A.W.; Tutuc, D.; Zwicknagl, G.; Haug, Rolf J. (College Park, MD : American Physical Society, 2016)
    We report on a Kondo correlated quantum dot connected to two-dimensional leads where we demonstrate the renormalization of the g factor in the pure Zeeman case. i.e., for magnetic fields parallel to the plane of the quantum ...
  • Direct measurement of the g factor of composite fermions 
    Schulze-Wischeler, F.; Mariani, E.; Hohls, Frank; Haug, Rolf J. (College Park, MD : American Physical Society, 2004)
    The activation gap δ of the fractional quantum Hall states was measured as a function of the perpendicular magnetic field. A linear dependence of δ on magnetic field was observed while approaching the spin-polarization ...
  • Magnetic control of electric-field domains in semiconductor superlattices 
    Schmidt, T.; Jansen, A.G.M.; Haug, Rolf J.; Klitzing, K.V.; Eberl, K. (College Park, MD : American Physical Society, 1998)
    Applying magnetic fields up to B = 29 T, we investigate the formation of electric-field domains in Landau-quantized semiconductor superlattices. Surprisingly, the electric-field distribution remains determined by the subband ...
  • Observation of the local structure of landau bands in a disordered conductor 
    Schmidt, T.; Haug, Rolf J.; Fal'ko, V.I.; v. Klitzing, K.; Förster, A.; Lüth, H. (College Park, MD : American Physical Society, 1997)
    The local density of states of heavily doped GaAs is explored at high magnetic fields, where only a single or few Landau bands are occupied. Our experiment is based on resonant tunneling through impurity states and images ...
  • Parametric amplification of matter waves in dipolar spinor Bose-Einstein condensates 
    Deuretzbacher, Frank; Gebreyesus, Garu; Topic, Oliver; Scherer, Manuel; Lücke, Bernd; Ertmer, Wolfgang; Arlt, Jan J.; Klempt, Carsten; Santos, Luis (College Park, MD : American Physical Society, 2010)
    Spin-changing collisions may lead under proper conditions to the parametric amplification of matter waves in spinor Bose-Einstein condensates. Magnetic dipole-dipole interactions, although typically very weak in alkalimetal ...
  • Physical and chemical induced spin crossover 
    Renz, Franz (Bristol : IOP Publishing Ltd., 2010)
    Physical spin crossover (spin transition), one of the most fascinating dynamic electronic structure phenomena occurring in coordination compounds of third row transition metal ions, mostly of iron(II), iron(III) and ...
  • Three-beam atom interferometer 
    Hinderthür, H.; Pautz, A.; Rieger, V.; Ruschewitz, F.; Peng, J.L.; Sengstock, K.; Ertmer, Wolfgang (American Physical Society, 1997)
    We present an atom interferometer based on the interference of three partial matter waves in three different internal and external states. Coherent laser excitation acts as a beamsplitter to create a superposition state ...