In0.75Ga0.25As on GaAs submicron rings and their application for coherent nanoelectronic devices (Articolo in rivista)

Type
Label
  • In0.75Ga0.25As on GaAs submicron rings and their application for coherent nanoelectronic devices (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Carillo, F; Biasiol, G; Frustaglia, D; Giazotto, F; Sorba, L; Beltram, F (2006)
    In0.75Ga0.25As on GaAs submicron rings and their application for coherent nanoelectronic devices
    in Physica. E, Low-dimensional systems and nanostructures (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Carillo, F; Biasiol, G; Frustaglia, D; Giazotto, F; Sorba, L; Beltram, F (literal)
Pagina inizio
  • 53 (literal)
Pagina fine
  • 56 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 32 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INFM, NEST, I-56126 Pisa, Italy; Scuola Normale Super Pisa, I-56126 Pisa, Italy; INFM, NEST, I-34012 Trieste, Italy; CNR, Lab Nazl, TASC, INFM, I-34012 Trieste, Italy; Univ Modena, I-41100 Modena, Italy (literal)
Titolo
  • In0.75Ga0.25As on GaAs submicron rings and their application for coherent nanoelectronic devices (literal)
Abstract
  • Electron-phase modulation in magnetic and electric fields will be presented in In0.75Ga0.25As Aharonov-Bohm (AB) rings. The zero Schottky barrier of this material made it possible to nanofabricate devices with radii down to below 200 nm without carrier depletion. We shall present a fabrication scheme based on wet and dry etching that yielded excellent reproducibility, very high contrast of the oscillations and good electrical gating. The operation of these structures is compatible with closed-cycle refrigeration and suggests that this process can yield coherent electronic circuits that do not require cryogenic liquids. The InGaAs/AlInAs heterostructure was grown by MBE on a GaAs substrate [F. Capotondi, G. Biasiol, D. Ercolani, V. Grillo, E. Carlino, F. Romanato, L. Sorba, Thin Solid Films 484 (2005) 4001, and in light of the large effective g-factor and the absence of the Schottky barrier is a material system of interest for the investigation of spin-related effects [W. Desrat, F. Giazotto, V. Pellegrini, F. Beltram, F. Capotondi, G. Biasiol, L. Sorba, D.K. Maude, Phys. Rev. B 69 (2004) 245324; W. Desrat, F. Giazotto, V. Pellegrini, M. Governale, F. Beltram, F. Capotondi, G. Biasiol, L. Sorba, Phys. Rev. B 71 (2005) 153314; J. Nitta, T. Akazaki, H. Takayanagi, T. Enoki, Phys. Rev. Lett. 78 (1997) 1335] and the realization of hybrid superconductor/semiconductor devices [Th. Schdpers, A. Kaluza, K. Neurohr, J. Malindretos, G. Crecelius, A. van der Hart, H. Hardtdegen, H. Uth, Appl. Phys. Lett. 71 (1997) 3575]. (c) 2006 Elsevier B.V. All rights reserved. (literal)
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