Quantum cables as transport spectroscope for quasi-one-dimensional density of states of cylindrical quantum wires

Zeng, Z. Y.; Zeng, Z.Y.; Xiang, Y.; Zhang, L. D.; Zhang, L.D.
September 2000
Applied Physics Letters;9/25/2000, Vol. 77 Issue 13
Academic Journal
We propose that quantum cables can be used as a kind of transport spectroscope to obtain directly the quasi-one-dimensional (Q1D) density of states (DOS) of cylindrical quantum wires. By simultaneously measuring the direct current through the cylindrical quantum wire and the leaky tunneling current into its neighboring wire at desirable temperatures, one can obtain detailed information about the Q1D DOS and subband structure of the cylindrical quantum wire. © 2000 American Institute of Physics.


Related Articles

  • Intersubband population inversion in quantum wire structures. Briggs, S.; Jovanovic, D.; Leburton, J. P. // Applied Physics Letters;5/15/1989, Vol. 54 Issue 20, p2012 

    When the spacing between subbands in a quantum wire is equal to the optic phonon energy a situation occurs under longitudinal field conditions where the upper subband population is enhanced with respect to the lower subband. We focus our investigation on the case where a third, intermediate...

  • Resonant tunneling of two-dimensional electrons into one-dimensional subbands of a quantum wire. Zaslavsky, A.; Tsui, D.C.; Santos, M.; Shayegan, M. // Applied Physics Letters;4/1/1991, Vol. 58 Issue 13, p1440 

    Studies the resonant tunneling of two-dimensional electrons into one-dimensional subbands of a quantum wire. Identification of the tunneling by negative differential resistance features in the transport characteristics; Agreement of the bias positions with simple tunneling theory estimates.

  • Resonant tunneling of two-dimensional electrons through a quantum wire: A negative transconductance device. Luryi, Serge; Capasso, Federico // Applied Physics Letters;12/15/1985, Vol. 47 Issue 12, p1347 

    A novel three-terminal resonant-tunneling structure is proposed in which the double potential barrier is defined within the plane of a two-dimensional (2-D) electron gas. The resonant tunneling of 2-D electrons into a 1-D "quantum wire" is controlled not only by a source-to-drain voltage but...

  • Arrays of (Zn,Mn)S quantum wires with well-defined diameters below 10 nm. Chen, L.; Klar, P. J.; Heimbrodt, W.; Brieler, F. J.; Fröba, M.; Krug von Nidda, H.-A.; Kurz, T.; Loidl, A. // Journal of Applied Physics;1/15/2003, Vol. 93 Issue 2, p1326 

    Zn[sub 1 - x]Mn[sub x]S with x = 1% to 30% were formed inside the ordered pore systems of different mesoporous SiO[sub 2] matrices. Due to the highly ordered host structure, regular arrays of Zn[sub 1 - x]Mn[sub x]S quantum wires with diameters of 3.1 nm and 5.6 nm, respectively, separated by 2...

  • Spontaneous Spin Polarization of Electrons in Quantum Wires. Shelykh, I. A.; Bagraev, N. T.; Ivanov, V. K.; Klyachkin, L. E. // Semiconductors;Jan2002, Vol. 36 Issue 1, p65 

    The quantum conductance staircase of the one-dimensional (1D) channel is analyzed for a weak filling of the lower 1D subbands, when the exchange electron-electron interaction of carriers dominates over their kinetic energy. Main attention is paid to considering the behavior of the...

  • Saturation of phase coherence length in GaAs/AlGaAs on-facet quantum wires. Fukai, Yoshino K.; Yamada, Syoji; Nakano, Hayato // Applied Physics Letters;5/21/1990, Vol. 56 Issue 21, p2123 

    Phase coherence length L[lowercase_phi_synonym] of on-facet quantum wires is determined at temperatures down to 50 mK by three methods: magnetoresistance, conductance fluctuation amplitude, and the conductance fluctuation correlation field. It is found that L[lowercase_phi_synonym] saturates...

  • Emission wavelength engineering of InAs/InP(001) quantum wires. Fuster, D.; Gonz�lez, L.; Gonz�lez, Y.; Mart�nez-Pastor, J.; Ben, T.; Ponce, A.; Molina, S. I. // European Physical Journal B -- Condensed Matter;Aug2004, Vol. 40 Issue 4, p433 

    In this work we have studied the dependence of the optical properties of self-assembled InAs quantum wires (QWr) grown on InP(001) on the growth temperature of the InP cap layer, as a mean for controlling the InAs QWr size. Our main result is that we can tune the emission wavelength of InAs QWr...

  • Band structures and optical properties of Ga1-xInxAs quantum wires grown by strain-induced... Li, ang-Xin; Chang, Yia-Chung // Journal of Applied Physics;12/1/1998, Vol. 84 Issue 11, p6162 

    Provides information on a study which investigated the band structures and optical matrix elements of strained multiple quantum wires (QWR). Theoretical background; Experimental approach; Results and discussions; Conclusion.

  • Resonant tunneling through a bend in a quantum wire. Jian Wang; Hong Guo // Applied Physics Letters;2/3/1992, Vol. 60 Issue 5, p654 

    Examines the resonant tunneling through a corner in two-dimensional L-shape quantum wire. Effect of double potential barrier insertion on transmission properties of quantum wire; Role of resonant tunneling in reflection elimination at the corner region; Control of transmission peak at resonant...


Read the Article


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

Try another library?
Sign out of this library

Other Topics