Zobrazeno 1 - 10
of 954
pro vyhledávání: '"Ritchie DA"'
Publikováno v:
J. Phys.: Condens. Matter 16, L279-L286 (2004)
We report an unusual insulating state in one-dimensional quantum wires with a non-uniform confinement potential. The wires consist of a series of closely spaced split gates in high mobility GaAs/AlGaAs heterostructures. At certain combinations of wir
Externí odkaz:
http://arxiv.org/abs/cond-mat/0406031
Autor:
Taktak, I, Kapfer, M, Nath, J, Roulleau, P, Acciai, M, Splettstoesser, J, Farrer, I, Ritchie, DA, Glattli, DC
Publikováno v:
Nature Communications (2041-1723) vol.13(2022)
Quasi-particles are elementary excitations of condensed matter quantum phases. Demonstrating that they keep quantum coherence while propagating is a fundamental issue for their manipulation for quantum information tasks. Here, we consider anyons, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8ffda4c363aceb4c506385f88e64e32
https://pubmed.ncbi.nlm.nih.gov/36195621
https://pubmed.ncbi.nlm.nih.gov/36195621
Autor:
Chen Ran, Xia Ruqiao, Griffiths Jonathan, Beere Harvey E., Ritchie David A., Michailow Wladislaw
Publikováno v:
Nanophotonics, Vol 13, Iss 10, Pp 1917-1928 (2024)
Field effect transistors have shown promising performance as terahertz (THz) detectors over the past few decades. Recently, a quantum phenomenon, the in-plane photoelectric effect, was discovered as a novel detection mechanism in gated two-dimensiona
Externí odkaz:
https://doaj.org/article/1b0ab2366930453db729d102ec3c8bfc
Autor:
Kamboj, VS, Singh, A, Ferrus, T, Beere, HE, Duffy, Liam, Hesjedal, T, Barnes, CHW, Ritchie, DA
Strong spin–momentum coupling in topological insulators gives rise to topological surface states, protected against disorder scattering by time reversal symmetry. The study of these exotic quantum states not only provides an opportunity to explore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f8d71e9294b3bf35a3bff9f8b5f17e6
Autor:
Delfanazari, K, Puddy, R, Ma, P, Yi, T, Cao, M, Richardson, CL, Farrer, I, Ritchie, DA, Joyce, H, Kelly, M, Smith, CG
In this paper, we experimentally demonstrate a hybrid superconducting-semiconducting (S-Sm) circuit consisting of eight planar and ballistic Nb-In0.75Ga0.25As-Nb Josephson junctions. E-beam lithography was used to fabricate the Josephson junctions on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90c1583ed9b80e1abd6b0bdd06d2f358
The efficiency of a solar cell can be substantially increased by opening new energy gaps within the semiconductor band gap. This creates additional optical absorption pathways which can be fully exploited under concentrated sunlight. Here we report a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9b60abbb430d2f9ccb5f9e7fa9e6ba86
https://nrl.northumbria.ac.uk/id/eprint/32350/8/acsphotonics.7b00673.pdf
https://nrl.northumbria.ac.uk/id/eprint/32350/8/acsphotonics.7b00673.pdf
Autor:
Knox, CS, Morrison, C, Herling, F, Ritchie, DA, Newell, O, Myronov, M, Linfield, EH, Marrows, CH
InAs/GaSb coupled quantum well heterostructures are important semiconductor systems with applications ranging from spintronics to photonics. Most recently, InAs/GaSb heterostructures have been identified as candidate two-dimensional topological insul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::e735339993988d419aa27434e76bc8c7
Autor:
Degl'Innocenti, R, Xiao, L, Kindness, SJ, Kamboj, VS, Wei, B, Braeuninger-Weimer, P, Nakanishi, K, Aria, AI, Hofmann, S, Beere, HE, Ritchie, DA
We present a fast room temperature terahertz detector based on graphene loaded plasmonic antenna arrays. The antenna elements, which are arranged in series and are shorted by graphene, are contacting source and drain metallic pads, thus providing bot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad227bf47e90e6129e01b1e7bd3d1f6c
Photonic crystals (PhCs) possess outstanding optical properties that can be exploited for chemical sensing. We utilized a three-dimensional close-packed PhC structure made of functionalized silica nanoparticles. They consist of alternating high and l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55b5de3234db3ddcd91deb2a8c12c9d4
Autor:
Astley, MR, Kataoka, M, Ford, CJB, Barnes, CHW, Anderson, D, Jones, GAC, Farrer, I, Ritchie, DA, Pepper, M
Using a non-invasive charge detection method, we detect a flow of electrons trapped in dynamic quantum dots. The dynamic quantum dots are defined by surface acoustic waves (SAWs) and move through a long depleted one-dimensional channel. A one-dimensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ae280b446acd5026e5553ae8cdfd8ff