Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Datenquelle
Materialart
Erscheinungszeitraum
  • 1
    Digitale Medien
    Digitale Medien
    Self-consistent Monte Carlo particle transport with model quantum tunneling dynamics: Application to the intrinsic bistability of a symmetric double-barrier structure (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 5975-5981 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: The intrinsic bistability in a symmetric resonant tunneling device (RTD) is simulated by the ensemble particle Monte Carlo technique, coupled with a simple model of the space- and time-dependent particle quantum dynamics inside the double-barrier region of the RTD. This model particle quantum dynamics is based upon the phase-time delay, which is obtained from a piecewise-linear-potential Airy function approach to the calculation of the transmission amplitude. An unambiguous hysteresis in the negative differential resistance (NDR) region of the current-voltage (I-V) characteristic is observed for a symmetric AlGaAs/GaAs double-barrier structure. The dynamical accumulation of carriers in the well is seen to be the cause of this marked bistability/hysteresis. However, the plateau-like features of the I-V curve are not resolved, although oscillations in the quantum well carrier density in the NDR are prominent. This article strongly suggests that a more accurate treatment of the space- and time-dependent particle quantum dynamics across the RTD is of paramount importance.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.351907
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Random telegraphic noise in double barrier systems (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 63 (1993), S. 2652-2654 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: A random telegraphic noise (RTN) in a resonant tunneling device (RTD) has been found through a self-consistent particle Monte Carlo (MC) simulation with model quantum dynamics. The onset of RTN coincides with the onset of tunneling conduction, and with the onset of the low-current valley region of the current-voltage (I-V) characteristic. The simulation demonstrates the presence of the statistical capture and release of tunneling charged particles by the quantum well, which is similar to the capture and release of electrons by electron traps (defects, etc.). It is proposed that this may represent a novel mechanism for explaining the experimentally observed RTN behavior of large-area double-barrier structures since it is not restricted to small-area devices.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.110410
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    The surface tension of4He: Low-temperature behavior (1989)
    Springer
    Journal of low temperature physics 76 (1989), S. 121-128 
    Details
    ISSN: 1573-7357
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The low-temperature surface tension of4He is calculated in the excitation approximation based upon a fundamental microscopic theory. The low-temperature behavior is shown to be due entirely to the effects of the coexistence curve. The role of the excitations in surface tension calculations is clarified, and it is found that only bulk excitations contribute to the surface tension and that the excitations can be ignored up to 2.2 K with an error of about 1%. Consequently, the introduction of surface excitations must be interpreted as an attempt to calculate the effects of the coexistence curve on the surface tension.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00681579
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...