Observation of Coulomb staircases of both tunneling current and displacement current in nanomechanical double barrier tunneling structures

Kouhei Nagano; Atsushi Okuda; Yutaka Majima

doi:10.1063/1.1493228

Observation of Coulomb staircases of both tunneling current and displacement current in nanomechanical double barrier tunneling structures

Applied Physics Letters ◽

10.1063/1.1493228 ◽

2002 ◽

Vol 81 (3) ◽

pp. 544-546 ◽

Cited By ~ 19

Author(s):

Kouhei Nagano ◽

Atsushi Okuda ◽

Yutaka Majima

Keyword(s):

Tunneling Current ◽

Displacement Current ◽

Double Barrier ◽

Barrier Tunneling

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Observation of Displacement Current Staircase and Negative Differential Resistance in Nanomechanical Double-Barrier Tunneling Structures with Scanning Vibrating Probe

Japanese Journal of Applied Physics ◽

10.1143/jjap.42.2458 ◽

2003 ◽

Vol 42 (Part 1, No. 4B) ◽

pp. 2458-2461 ◽

Cited By ~ 4

Author(s):

Yasuo Azuma ◽

Kouhei Nagano ◽

Yutaka Majima

Keyword(s):

Negative Differential Resistance ◽

Differential Resistance ◽

Displacement Current ◽

Vibrating Probe ◽

Double Barrier ◽

Barrier Tunneling

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RESONANT TUNNELING IN DOUBLE BARRIER SEMICONDUCTOR NANO-STRUCTURES

International Journal of Modern Physics B ◽

10.1142/s0217979295001142 ◽

1995 ◽

Vol 09 (23) ◽

pp. 3039-3051

Author(s):

DILIP K. ROY ◽

AJIT SINGH

Keyword(s):

Quantum Measurement ◽

Current Density ◽

Resonant Tunneling ◽

Tunneling Current ◽

Double Barrier ◽

Tunneling Diode ◽

Nano Structures ◽

Current Densities ◽

Double Barrier Resonant Tunneling ◽

Measurement Approach

The principles of operation of a double barrier resonant tunneling diode (DBRTD) giving rise to negative differential conductivity effect are first reviewed. Next, the physics of resonant tunneling based on (i) the time-independent conventional approach and (ii) the time-dependent quantum measurement approach, as applied to a DBRTD, is discussed. Expressions for the resonant tunneling current densities through the barriers are then derived on the ideas of quantum measurement. Through the well the current, however, flows by the conventional mechanism. The three current density magnitudes are found to be identical under resonant conditions. Finally, an expression for the resonant tunneling current density due to a group of incident electrons is derived.

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Resonant interband tunneling current in InAs/AlSb/GaSb/AlSb/InAs double barrier diodes

Journal of Applied Physics ◽

10.1063/1.368208 ◽

1998 ◽

Vol 84 (3) ◽

pp. 1460-1466 ◽

Cited By ~ 12

Author(s):

Hiroto Kitabayashi ◽

Takao Waho ◽

Masafumi Yamamoto

Keyword(s):

Tunneling Current ◽

Double Barrier ◽

Interband Tunneling

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The waveform separation of displacement current and tunneling current using a scanning vibrating probe

Thin Solid Films ◽

10.1016/s0040-6090(01)01070-7 ◽

2001 ◽

Vol 393 (1-2) ◽

pp. 204-209 ◽

Cited By ~ 5

Author(s):

Yutaka Majima ◽

Setsuri Uehara ◽

Tomohiko Masuda ◽

Atsushi Okuda ◽

Mitsumasa Iwamoto

Keyword(s):

Tunneling Current ◽

Displacement Current ◽

Vibrating Probe

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SINGLE-ELECTRON TUNNELING IN DOUBLE-BARRIER NANOSTRUCTURES

International Journal of Modern Physics B ◽

10.1142/s021797929200116x ◽

1992 ◽

Vol 06 (13) ◽

pp. 2321-2343 ◽

Cited By ~ 3

Author(s):

V.J. GOLDMAN ◽

BO SU ◽

J.E. CUNNINGHAM

Keyword(s):

Coulomb Blockade ◽

Resonant Tunneling ◽

Electron Tunneling ◽

Tunneling Current ◽

Theoretical Models ◽

Single Electron ◽

Double Barrier ◽

Current Voltage ◽

Tunneling Devices ◽

Resonant Tunneling Devices

We review experimental study of charge transport in nanometer double-barrier resonant tunneling devices. Heterostructure material is asymmetric: one barrier is substantially less transparent than the other. Resonant tunneling through size-quantized well states and single-electron charging of the well are thus largely separated in the two bias polarities. When the emitter barrier is more transparent than the collector barrier, electrons accumulate in the well; incremental electron occupation of the well is accompanied by Coulomb blockade leading to sharp steps of the tunneling current. When the emitter barrier is less transparent, the current reflects resonant tunneling of just one electron at a time through size-quantized well states; the current peaks and/or steps (depending on experimental parameters) appear in current-voltage characteristics. Magnetic field and temperature effects are also reviewed. Good agreement is achieved in comparison of many features of experimental data with simple theoretical models.

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