Zobrazeno 1 - 10
of 57
pro vyhledávání: '"J. Waldie"'
Autor:
K. Das Gupta, A. F. Croxall, J. Waldie, C. A. Nicoll, H. E. Beere, I. Farrer, D. A. Ritchie, M. Pepper
Publikováno v:
Advances in Condensed Matter Physics, Vol 2011 (2011)
Recently, it has been possible to design independently contacted electron-hole bilayers (EHBLs) with carrier densities 500) also appears in both layers despite electron mobilities of above ∼106cm2V−1s−1 and hole mobilities over ∼105cm2V−1s
Externí odkaz:
https://doaj.org/article/6603b4d04f764c29bb3ced029880f5e8
Autor:
David A. Ritchie, Thomas M. Mitchell, Nikita W. Almond, R. Wallis, Binbin Wei, Harvey E. Beere, Stephen J. Kindness, J. Waldie, Yuqing Wu, Riccardo Degl'Innocenti, Wladislaw Michailow, Peter Spencer
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
An antenna-coupled dual-gated two-dimensional electron gas (2DEG) based on a GaAs-AlGaAs heterostructure shows a pronounced response to 2 THz radiation. The device is shown to be a direct detector, and its photoresponse arises without any source-drai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48c94d89a0c014c80b32f97526ac9b44
https://doi.org/10.1109/irmmw-thz46771.2020.9370817
https://doi.org/10.1109/irmmw-thz46771.2020.9370817
Publikováno v:
Physical Review B. 99
We present observations of an anisotropic resistance state at Landau level filling factor $\nu=5/2$ in a two-dimensional hole system (2DHS), which occurs for certain values of hole density $p$ and average out-of-plane electric field $E_\perp$. The 2D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ed3de21a440fe9939adc4f2e29cb1e0
https://doi.org/10.1103/physrevb.99.195420
https://doi.org/10.1103/physrevb.99.195420
Autor:
D. J. Waldie
Publikováno v:
Boom. 6:92-98
The habits of 19th century Californians framed what becoming Californian would mean. Bitterly for Californians today, those habits did not come with a moral compass. The California Dream had been limitless in its promise of health, wealth, and happin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad4a34e2ccf3a35025eff02697ecf23d
https://doi.org/10.1525/boom.2016.6.4.92
https://doi.org/10.1525/boom.2016.6.4.92
Autor:
C. B. Beauchamp, L. V. Levitin, Patrick See, Harvey E. Beere, G. Creeth, Andrew Casey, S. Dimitriadis, D. A. Ritchie, J. Waldie, J. T. Nicholls, Ian Farrer
Publikováno v:
Applied Physics Letters. 117:162104
To cool a high mobility two-dimensional electron gas (2DEG) at a GaAs–AlGaAs heterojunction to milliKelvin temperatures, we have fabricated low resistance Ohmic contacts based on alloys of Au, Ni, and Ge. The Ohmic contacts have a typical contact r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d8115eaaa4cda1e574c14b93cde128a
https://doi.org/10.1063/5.0028217
https://doi.org/10.1063/5.0028217
Akademický článek
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Autor:
Harvey E. Beere, J. Waldie, Riccardo Degl'Innocenti, Oleg Mitrofanov, R. Wallis, James A. Harrington, Jeffrey E. Melzer, David A. Ritchie, Carlos M. Bledt
As the ambition behind THz quantum cascade laser based applications continues to grow, abandoning free-space optics in favor of waveguided systems promises major improvements in targeted, easy to align, and robust radiation delivery. This is especial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::402bdf18b5c1ed1486e71ead2ef35890
https://doi.org/10.1117/12.2250530
https://doi.org/10.1117/12.2250530
Autor:
Ian Farrer, Ugo Siciliani de Cumis, J. Llandro, David A. Ritchie, J. Waldie, A. F. Croxall, Harvey E. Beere, Deepyanti Taneja
We present GaAs/AlGaAs double quantum well devices that can operate as both electron-hole (e-h) and hole-hole (h-h) bilayers, with separating barriers as narrow as 5 nm or 7.5 nm. With such narrow barriers, in the h-h configuration, we observe signs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ffc4e515c63bf9d0b377299cf30d7e0
https://eprints.whiterose.ac.uk/113226/1/1%2E4976505.pdf
https://eprints.whiterose.ac.uk/113226/1/1%2E4976505.pdf
Autor:
K. Das Gupta, J. Waldie, Ian Farrer, Harvey E. Beere, B. Zheng, David A. Ritchie, A. F. Croxall, Francois Sfigakis
We present measurements of Coulomb drag in an ambipolar GaAs/AlGaAs double quantum well structure that can be configured as both an electron-hole bilayer and a hole-hole bilayer, with an insulating barrier of only 10 nm between the two quantum wells.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ffd826b2eba2864472312f0d87798d6e
https://eprints.whiterose.ac.uk/122282/1/1%2E4941760.pdf
https://eprints.whiterose.ac.uk/122282/1/1%2E4941760.pdf
Autor:
D. J. Waldie, Neil Campbell
Publikováno v:
Western American Literature. 46:228-249
"An assemblage of habits": D. J. Waldie and Neil Campbell—a suburban conversation D. J. Waldie, Neil Campbell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a391bd2e36e449e812fc742a658cddab
https://doi.org/10.1353/wal.2011.0066
https://doi.org/10.1353/wal.2011.0066