Electrical Transport in Low-Dimensional Semiconductors

Quantum well and Quantum wire structures grown on patterned substrates makes possible the preparation of novel 2D and 1D electron gas systems useful for studies of quantum transport phenomena. Among these are the effects of quantized conductance, quantum contact resistance and Luttinger liquid behavior.


2D electron gas systems

  • High mobility on misoriented substrates
  • 2D electron gas on V-grooved substrates

 

1D electron gas systems

  • Quantized conductance
  • Quantum contact resistance
  • Luttinger liquid behavior

Selected publications:
 

  • D. Kaufman, Y. Berk, B. Dwir, A. Rudra, A. Palevski and E. Kapon,
    “Conductance Quantization in V-Groove Quantum Wires”
    Phys. Rev. B (Rapid Comm.) 59 R10433-10436 (1999).
  • E. Pelucchi, N. Moret, B. Dwir, D.Y. Oberli, A. Rudra, N. Gogneau, A. Kumar, E. Kapon, E. Levy and A. Palevski,
    “Sub-meV Photoluminescence Linewidth and >106 cm2/Vs Electron Mobility in AlGaAs/GaAs Quantum Wells Grown by Metallorganic Vapor Phase Epitaxy on Slightly Misoriented Substrates”
    J. Appl. Phys. 99, 093515 (2006).
  • E. Levy, A. Tsukernik, M.Karpovski, A. Palevski, B. Dwir, E. Pelucchi, A. Rudra, E. Kapon and Y. Oreg,
    “Luttinger-liquid behavior in weakly disordered quantum wires”
    Phys. Rev. Lett. 97, Art. No.196802 (2006)