Zobrazeno 1 - 10
of 10
pro vyhledávání: '"I. M. Castleton"'
Autor:
Michelle Y. Simmons, I. M. Castleton, J. E. F. Frost, Alex R. Hamilton, David A. Ritchie, Michael Pepper, A. G. Davies
Publikováno v:
Physica B: Condensed Matter. :157-161
We report the experimental study of a system comprising two parallel quasi-one-dimensional (1D) ballistic wires formed in a GaAs-Al x Ga 1− x As double quantum well structure. A unique surface gate geometry allows the device to be tuned smoothly fr
Autor:
Gac Jones, David A. Ritchie, David Cobden, G. Pilling, Paul L. McEuen, I. M. Castleton, Edmund H. Linfield, Raghuveer Parthasarathy
Publikováno v:
Europhysics Letters (EPL). 41:327-332
We find that, under appropriate conditions, electrons can pass a barrier etched across a two dimensional electron gas (2DEG) by field emission from the GaAs/AlGaAs heterojunction into a second, low-density 2DEG formed deep in the substrate. The curre
Autor:
Chi-Te Liang, Michael Pepper, Zhen-Li Ji, J. E. F. Frost, I. M. Castleton, Karl-Fredrik Berggren, David A. Ritchie, Tomas Lundberg
Publikováno v:
Semiconductor Science and Technology. 12:875-880
We have performed low-temperature conductance measurements on a quantum dot. For zero magnetic field we find transmission resonances in the regions between successive ballistic quantized conductance plateaus. The results of the conductance measuremen
Autor:
Michael Pepper, David A. Ritchie, K. M. Brown, G. A. C. Jones, I. M. Castleton, Edmund H. Linfield, M. P. Grimshaw, N. K. Patel, Atsushi Kurobe
Publikováno v:
Semiconductor Science and Technology. 11:703-711
Lateral transport studies of double quantum wells have led to the observation of large nonlinear transconductances. This can arise from mobility modulation and resonant tunnelling. In this paper, by measuring samples with different coupling, we are a
Autor:
M. P. Grimshaw, David A. Ritchie, A. Kurobe, Michael Pepper, G. A. C. Jones, I. M. Castleton, Edmund H. Linfield, K. M. Brown
Publikováno v:
Physical Review B. 50:8024-8027
We present a study of electron transport in coupled quantum-well structures controlled by both front and back gates. The resonant resistance enhancement is systematically investigated by varying the mobility in each quantum well. We show that a large
Autor:
David A. Ritchie, K. M. Brown, M. P. Grimshaw, Michael Pepper, Atsushi Kurobe, G. A. C. Jones, I. M. Castleton, Edmund H. Linfield
Publikováno v:
Semiconductor Science and Technology. 9:1744-1747
Results are presented on electron transport in a wide-quantum-well dual-channel velocity modulation transistor, where both front and back gates modulate the resistance through variation of the mobility, whilst maintaining a constant carrier concentra
Autor:
K. M. Brown, Michael Pepper, M. P. Grimshaw, David A. Ritchie, G. A. C. Jones, I. M. Castleton, Atsushi Kurobe, Edmund H. Linfield
Publikováno v:
Physical Review B. 50:4889-4892
Autor:
C. J. B. Ford, Charles G. Smith, I. M. Castleton, Crispin H. W. Barnes, Chi-Te Liang, J. E. F. Frost, David A. Ritchie, Michael Pepper
We have measured the low-temperature transport properties of a quantum dot formed in a one-dimensional channel. In zero magnetic field this device shows quantized ballistic conductance plateaus with resonant tunneling peaks in each transition region
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d7874f9b9702c765df0dd1d88a0b668
Autor:
J. E. F. Frost, Michael Pepper, Charles G. Smith, G. A. C. Jones, I. M. Castleton, D. A. Ritchie, Edmund H. Linfield, Andrew S. Dzurak, Chi-Te Liang, Mark Field
Publikováno v:
Quantum Transport in Ultrasmall Devices ISBN: 9781461358091
Ballistic electron transport in the two-dimensional electron gas (2DEG) formed at a GaAs/AlxGai_xAs heterojunction has been studied in depth both experimentally and theoretically in recent years, and remains an active research area. One-dimensional (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf3a6100f016a7b4b9c9fb474b38b4c1
https://doi.org/10.1007/978-1-4615-1967-6_10
https://doi.org/10.1007/978-1-4615-1967-6_10
Autor:
G. A. C. Jones, Chi-Te Liang, I. M. Castleton, C. J. B. Ford, David A. Ritchie, J. E. F. Frost, Edmund H. Linfield, Michael Pepper, Charles G. Smith
Publikováno v:
Physical review. B, Condensed matter. 49(19)