Resonant tunneling through single layer heterostructures

Liu, H. C.
September 1987
Applied Physics Letters;9/28/1987, Vol. 51 Issue 13, p1019
Academic Journal
A new resonant tunneling process is discussed theoretically. The process relies on elastic intervalley transfers between different band minima, e.g., between Γ and X minima in a GaAs-AlAs system. Single layer GaAs-AlAs-GaAs heterostructures are analyzed. An effective mass envelope function approach is used, and a delta-function transfer potential at heterointerfaces is employed. A resonance in the transmission coefficient is clearly seen, which gives rise to a negative differential resistance region in the current-voltage characteristic.


Related Articles

  • Is intrinsic bistability really intrinsic tristability? Coon, D. D.; Bandara, K. M. S. V.; Zhao, H. // Applied Physics Letters;5/22/1989, Vol. 54 Issue 21, p2115 

    The issue of intrinsic bistability in resonant tunneling devices is examined analytically and quantitatively. The results indicate that the putative argument for intrinsic bistability is actually an argument for intrinsic tristability. If a third stable configuration really exists, it might be...

  • Resonant tunneling in (001)- and (111)-oriented III–V double-barrier heterostructures under transverse and longitudinal stresses. Albrecht, J. D.; Cong, L.; Ruden, P. P.; Nathan, M. I.; Smith, D. L. // Journal of Applied Physics;5/15/1996, Vol. 79 Issue 10, p7763 

    Presents calculations of the effects of external stress on the current-voltage characteristics of double-barrier (001)- and (111)-oriented resonant tunneling devices. Development of the resonant tunneling model; Results; Discussion.

  • Stability of binary logic tunneling phase states in dc-biased and ac-pumped single-electron tunnel junctions. Ohshima, T. // Applied Physics Letters;12/23/1996, Vol. 69 Issue 26, p4059 

    We have investigated the stability of phase states of single-electron tunneling oscillation phase locked by an external ac pump with twice the tunneling frequency using the Monte Carlo method. It has been shown that the lifetime of phase states depends strongly on the temperature, average...

  • Interband tunnel current between states of one, two, and three dimensions. Gilman, J. M. A.; O’Neill, A. G. // Journal of Applied Physics;3/15/1992, Vol. 71 Issue 6, p2741 

    Modifies the theory for interband tunneling to describe more effectively bipolar tunnel currents between states of either one, two, or three dimensions. Origin of the theory of interband tunneling for a conventional tunnel diode; Development of an expression for interband tunneling; Device...

  • An accurate semiclassical method to predict ground-state tunneling splittings. Tautermann, Christofer S.; Voegele, Andreas F.; Loerting, Thomas; Liedl, Klaus R. // Journal of Chemical Physics;8/1/2002, Vol. 117 Issue 5, p1967 

    A new method for calculating the ground-state tunneling splitting is presented. It is based on the semiclassical theory including recently derived corrections and it is the first method, which explicitly takes into account the whole conformational space between the minima and the transition...

  • TUNNELING SPECTROSCOPY OF THE ELECTRON-DOPED CUPRATE SUPERCONDUCTOR Pr[sub2-x]Ce[subx]CuO[sub4]. Biswas, A.; Fournier, P.; Smolyaninova, V. N.; Balci, H.; Higgins, J. S.; Budhani, A. R. C.; Greene, R. L. // International Journal of Modern Physics B: Condensed Matter Phys;8/30/2002, Vol. 16 Issue 20-22, p3175 

    The properties of electron(n)-doped cuprate superconductors show significant deviations from those of their hold(p)-doped counterparts. Experiments prior to 2000 suggested an s-wave pairing symmetry as opposed to d-wave pairing symmetry in hole-doped cuprates. Recent experiments have suggested...

  • High frequency components of current fluctuations in semiconductor tunneling barriers. Oriols, Xavier; Martı´n, Ferran; Sun˜e´, Jordi // Applied Physics Letters;5/27/2002, Vol. 80 Issue 21, p4048 

    The power spectral density of current noise in phase-coherent semiconductor tunneling scenarios is studied in terms of Bohm trajectories associated to time-dependent wave packets. In particular, the influence of the particles reflected by the barrier on the noise spectrum is analyzed. An...

  • Noise mechanisms in superconducting tunnel-junction detectors. Segall, K.; Wilson, C.; Frunzio, L.; Li, L.; Friedrich, S.; Gaidis, M. C.; Gaidis, M.C.; Prober, D. E.; Prober, D.E.; Szymkowiak, A. E.; Szymkowiak, A.E.; Moseley, S. H.; Moseley, S.H. // Applied Physics Letters;6/26/2000, Vol. 76 Issue 26 

    We present a theory and measurements of noise mechanisms in superconducting tunnel-junction detectors used as single-photon spectrometers. These mechanisms result from incomplete cooling of the excited quasiparticles in the tunnel-junction electrode. Due to the incomplete cooling, only a...

  • Quantum Discreteness Effects and Flicker Fluctuations in Tunneling Conductivity. Kuzovlev, Yu. E.; Medvedev, Yu. V.; Grishin, A. M. // Physics of the Solid State;May2002, Vol. 44 Issue 5, p843 

    An analysis of events in the tunneling junction shows that the interaction of one-electron processes in a many-electron system may be a source of scale-invariant low-frequency fluctuations of conductivity (the interaction consists in that the quantum probability of an electron transition depends...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics