Abstract:
We study the influence of e-e interactions on persistent currents in mesoscopic metallic rings by means of a Hamiltonian which incorporates diagonal disorder (substitional impurities) and where correlations are included up to 2nd order perturbation theory. The results are depending on the degree of disorder. If the disorder introduced by the impurities is not very strong, e-e 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 amplitude, which remains low after interactions are included.
Registro:
Documento: |
Artículo
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Título: | Effects of correlations and disorder on the persistent current in mesoscopic metallic rings |
Autor: | Chiappe, G.; Verges, J.A.; Louis, E. |
Filiación: | Departamento de Física, Universidad de Buenos Aires, Pabellon I, 1428 Capital Federal, Buenos Aires, Argentina Departamento de Física Aplicada, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain
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Año: | 1996
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Volumen: | 84
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Número: | 3
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Página de inicio: | 227
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Página de fin: | 231
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Título revista: | Anales des la Asociacion Quimica Argentina
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ISSN: | 03650375
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03650375_v84_n3_p227_Chiappe |
Referencias:
- Buttiker, M., Imry, Y., Landauer, R., (1983) Phys. Lett., 96 A, p. 365
- Chandrasekhar, V., Webb, R.A., Brady, M.J., Ketchen, M.B., Gallagherand, W.J., Kleinsasser, A., (1991) Phys. Rev. Lett., 67, p. 3578
- Levy, L.P., Dolan, G., Dunsmuir, J., Bouchiat, H., (1990) Phys. Rev. Lett., 64, p. 2074
- Ramin, M., Reulet, B., Bouchiat, H., (1995) Phys. Rev. B, 51, p. 5582
- M. Kamal, Z.H. Musslimani and A. Auerbach, preprint (1995); Galan, J., Verges, J.A., Martin-Rodero, A., (1993) Phys. Rev. B, 48, p. 13654
- Note that this approximation is already beyond the first order perturbation theory used in Refs. (4,5); Ma, M., (1982) Phys. Rev. B, 26, p. 5097
- Verges, J.A., Louis, E., Flores, F., Anda, E.V., (1987) Phys. Rev. B, p. 7146
- note; Kato, H., Yoshioka, D., (1994) Phys. Rev. B, 50, p. 4943
- Abraham, M., Berkovits, R., (1993) Phys. Rev. Lett., 70, p. 1509
Citas:
---------- APA ----------
Chiappe, G., Verges, J.A. & Louis, E.
(1996)
. Effects of correlations and disorder on the persistent current in mesoscopic metallic rings. Anales des la Asociacion Quimica Argentina, 84(3), 227-231.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03650375_v84_n3_p227_Chiappe [ ]
---------- CHICAGO ----------
Chiappe, G., Verges, J.A., Louis, E.
"Effects of correlations and disorder on the persistent current in mesoscopic metallic rings"
. Anales des la Asociacion Quimica Argentina 84, no. 3
(1996) : 227-231.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03650375_v84_n3_p227_Chiappe [ ]
---------- MLA ----------
Chiappe, G., Verges, J.A., Louis, E.
"Effects of correlations and disorder on the persistent current in mesoscopic metallic rings"
. Anales des la Asociacion Quimica Argentina, vol. 84, no. 3, 1996, pp. 227-231.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03650375_v84_n3_p227_Chiappe [ ]
---------- VANCOUVER ----------
Chiappe, G., Verges, J.A., Louis, E. Effects of correlations and disorder on the persistent current in mesoscopic metallic rings. 1996;84(3):227-231.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03650375_v84_n3_p227_Chiappe [ ]