Abstract:
Persistent currents in mesoscopic metallic rings induced by static magnetic fields are investigated by means of a Hamiltonian which incorporates diagonal disorder and the electron-electron interaction through a Hubbard term (U). Correlations are included up to second order perturbation theory which is shown to work accurately for U of the order of the hopping integral. If disorder is not very strong, interactions increase the current up to near its value for a clean metal. Averaging over ring lengths eliminates the first Fourier component of the current and reduces its value, which remains low after interactions are included. Copyright © 1996 Elsevier Science Ltd.
Registro:
Documento: |
Artículo
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Título: | Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings |
Autor: | Chiappe, G.; Vergés, J.A.; Louis, E. |
Filiación: | Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, 1428 Capital Federal, Buenos Aires, Argentina Depto. de Física Aplicada, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain Instituto de Ciencia de Materiales, Consejo Sup. de Invest. Cie., Univ. Autónoma de Madrid, E-28049 Madrid, Spain
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Palabras clave: | A. nanostructures; D. electron-electron interactions; D. electronic transport; Correlation methods; Electric currents; Electrons; Fourier transforms; Magnetic field effects; Perturbation techniques; Electron electron interactions; Hamiltonian; Hubbard term; Nanostructured materials |
Año: | 1996
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Volumen: | 99
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Número: | 10
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Página de inicio: | 717
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Página de fin: | 721
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DOI: |
http://dx.doi.org/10.1016/0038-1098(96)00181-0 |
Título revista: | Solid State Communications
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Título revista abreviado: | Solid State Commun
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ISSN: | 00381098
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CODEN: | SSCOA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v99_n10_p717_Chiappe |
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Citas:
---------- APA ----------
Chiappe, G., Vergés, J.A. & Louis, E.
(1996)
. Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings. Solid State Communications, 99(10), 717-721.
http://dx.doi.org/10.1016/0038-1098(96)00181-0---------- CHICAGO ----------
Chiappe, G., Vergés, J.A., Louis, E.
"Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings"
. Solid State Communications 99, no. 10
(1996) : 717-721.
http://dx.doi.org/10.1016/0038-1098(96)00181-0---------- MLA ----------
Chiappe, G., Vergés, J.A., Louis, E.
"Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings"
. Solid State Communications, vol. 99, no. 10, 1996, pp. 717-721.
http://dx.doi.org/10.1016/0038-1098(96)00181-0---------- VANCOUVER ----------
Chiappe, G., Vergés, J.A., Louis, E. Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings. Solid State Commun. 1996;99(10):717-721.
http://dx.doi.org/10.1016/0038-1098(96)00181-0