Auflistung nach Schlagwort "Magnetic fields"

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  • Numerical modeling of a MEMS actuator considering several magnetic force calculation methods 
    Preisner, Thomas; Bolzmacher, Christian; Gerber, Andreas; Bauer, Karin; Quandt, Eckhard; Mathis, Wolfgang (Bingley : Emerald Group Publishing Ltd., 2011)
    Purpose: The purpose of this paper is to investigate the accuracy of different force calculation methods and their impact on mechanical deformations. For this purpose, a micrometer scaled actuator is considered, which ...
  • Optical spin noise of a single hole spin localized in an (InGa)as quantum dot 
    Dahbashi, Ramin; Hübner, Jens; Berski, Fabian; Pierz, Klaus; Oestreich, Michael (College Park, MD : American Physical Society, 2014)
    We advance spin noise spectroscopy to the ultimate limit of single spin detection. This technique enables the measurement of the spin dynamic of a single heavy hole localized in a flat (InGa)As quantum dot. Magnetic field ...
  • Optimization of novel phase separating IBS process 
    Jupé, Marco; Willemsen, Thomas; Malobabic, Sina; Schuba, Kornelia; Ristau, Detlev (Bellingham, WA : S P I E - International Society for Optical Engineering, 2015)
    During the last years, optical low loss components gained more and more industrial interest and led to novel approaches for the production in optical coating technology. The application of filtered deposition technologies ...
  • Phonon excitations of composite-fermion Landau levels 
    Schulze-Wischeler, F.; Hohls, Frank; Zeitler, U.; Reuter, D.; Wieck, A.D.; Haug, Rolf J. (College Park, MD : American Physical Society, 2004)
    The phonon excitations of fractional quantum Hall (FQH) states at filling factors ν =1÷3,2÷5, 4÷7, 3÷5, 4÷3, and 5÷3 were investigated. The excitations were found to be based on Landau-level transitions of composite fermions ...
  • Photoconductivity of graphene devices induced by terahertz radiation at various photon energies 
    Salman, M.; Gouider, F.; Friedemann, M.; Schmidt, H.; Ahlers, Franz-J.; Göthlich, M.; Haug, Rolf J.; Nachtwei, G. (College Park, MD : American Institute of Physics, 2013)
    The influence of a magnetic field on Landau levels (LLs) in graphene-based devices is described via the magneto-optical response induced by terahertz (THz) radiation. For single-layer graphene, the resonance energies of ...
  • Probing a Kondo-correlated quantum dot with spin spectroscopy 
    Kupidura, D.; Rogge, M.C.; Reinwald, M.; Wegscheider, W.; Haug, Rolf J. (College Park, MD : American Physical Society, 2006)
    We investigate the Kondo effect and spin blockade observed in a many-electron quantum dot and study the magnetic field dependence. At lower fields, a pronounced Kondo effect is found, which is replaced by the spin blockade ...
  • Resonant pulsed electromagnetic stirring of melt for effective grain fragmentation 
    Köppen, D.; Baake, E.; Gerstein, G.; Mrówka-Nowotnik, G.; Jarczyk, G. (Bristol : Institute of Physics Publishing, 2018)
    The paper describes the results of an experimental research, demonstrating and explaining the effect of grain fragmentation, caused by pulsed resonant electromagnetic stirring. In the experiments, 6082 aluminium alloy melt ...
  • Shot-noise at a Fermi-edge singularity: Non-Markovian dynamics 
    Ubbelohde, Niels; Roszak, K.; Hohls, Frank; Maire, Niels; Novotný, T.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2013)
    For an InAs quantum dot we study the current shot noise at a Fermi-edge singularity in low temperature cross-correlation measurements. In the regime of the interaction effect the strong suppression of noise observed at ...
  • Spin blockade in capacitively coupled quantum dots 
    Rogge, M.C.; Fühner, C.; Keyser, U.F.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2004)
    The spin blockade in capacitively coupled quantum dots was discussed using local anodic oxidation (LAO) and electron beam lithography. The tunability of the interdot coupling as a function of top gate voltage and magnetic ...
  • Spin-orbit coupling and anisotropy of spin splitting in quantum dots 
    Könemann, J.; Haug, Rolf J.; Maude, D.K.; Fal'Ko, V.I.; Altshuler, B.L. (College Park, MD : American Physical Society, 2005)
    In lateral quantum dots, the combined effect of both Dresselhaus and Bychkov-Rashba spin-orbit coupling is equivalent to an effective magnetic field ±BSO which has the opposite sign for sz=±1/2 spin electrons. When the ...
  • Suppression of decoherence in a graphene monolayer ring 
    Smirnov, D.; Rode, J.C.; Haug, Rolf J. (College Park, MD : American Institute of Physics, 2014)
    The influence of high magnetic fields on coherent transport is investigated. A monolayer graphene quantum ring is fabricated and the Aharonov-Bohm effect is observed. For increased magnitude of the magnetic field, higher ...
  • Terahertz detectors based on graphene 
    Gouider, Fathi; Salman, Majdi; Göthlich, Markus; Schmidt, Hennrik; Ahlers, Franz-J.; Haug, Rolf J.; Nachtwei, Georg (Bristol : Institute of Physics Publishing, 2013)
    In this study we present magnetotransport an magnetooptical data obtained in the magnetic field range 0T < B < 7T at detectors patterned in Corbino geometry on epitaxial graphene wafer using a Ge detector. We observed ...