Auflistung nach Schlagwort "conductance"

Sortiert nach: Sortierung: Ergebnisse:

  • Adsorbate induced refacetting: Pb chains on Si(557) 
    Czubanowski, M.; Schuster, A.; Akbari, S.; Pfnür, Herbert; Tegenkamp, Christoph (Bristol : IOP Publishing Ltd., 2007)
    The structure on the atomic and mesoscopic scale of Pb adsorbed on Si(557) has been investigated by high-resolution low energy electron diffraction (SPA-LEED). Depending on Pb coverage in the range between 1.2 and 1.6 ...
  • Correlation-function spectroscopy of inelastic lifetime in heavily doped GaAs heterostructures 
    Könemann, J.; König, P.; Schmidt, T.; McCann, E.; Fal’ko, V.I.; Haug, Rolf J. (College Park, MD : American Physical Society, 2001)
    Measurements of resonant tunneling through a localized impurity state are used to probe fluctuations in the local density of states of heavily doped GaAs. The measured differential conductance is analyzed in terms of ...
  • Flux-quantum-modulated Kondo conductance in a multielectron quantum dot 
    Fühner, C.; Keyser, U.F.; Haug, Rolf J.; Reuter, D.; Wieck, A.D. (College Park, MD : American Physical Society, 2002)
    We investigate a lateral semiconductor quantum dot with a large number of electrons in the limit of strong coupling to the leads. A Kondo effect is observed and can be tuned in a perpendicular magnetic field. This Kondo ...
  • How geometry affects sensitivity of a differential transformer for contactless characterization of liquids 
    Berger, Marc; Zygmanowski, Anne; Zimmermann, Stefan (Basel : MDPI, 2021)
    The electrical and dielectric properties of liquids can be used for sensing. Specific appli-cations, e.g., the continuous in-line monitoring of blood conductivity as a measure of the sodium concentration during dialysis ...
  • Phonons in InAs/AlAs single quantum dots observed by optical emission 
    Sarkar, D.; Van Der Meulen, H.P.; Calleja, J.M.; Becker, J.M.; Haug, Rolf J.; Pierz, Klaus (College Park, MD : American Physical Society, 2005)
    Photoluminescence emission spectra of self-assembled single InAs/AlAs quantum dots with variable size reveal typical sharp lines below 1.8 eV, corresponding to transitions between fully confined states. Above this energy ...
  • Role of domain walls in the abnormal photovoltaic effect in BiFeO 3 
    Bhatnagar, Akash; Roy Chaudhuri, Ayan; Kim, Young Heon; Hesse, Dietrich; Alexe, Marin (London : Nature Publishing Group, 2013)
    Recently, the anomalous photovoltaic (PV) effect in BiFeO 3 (BFO) thin films, which resulted in open circuit voltages (V oc) considerably larger than the band gap of the material, has generated a revival of the entire field ...
  • Shot noise in resonant tunneling through a zero-dimensional state with a complex energy spectrum 
    Nauen, A.; Hohls, Frank; Könemann, J.; Haug, Rolf J. (College Park, MD : American Physical Society, 2004)
    We investigate the noise properties of a GaAs/AlxGa 1-xAs resonant-tunneling structure at bias voltages where the current characteristic is determined by single electron tunneling. We discuss the suppression of the shot ...