Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings

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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...

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Autores principales: Chiappe, G., Vergés, J.A., Louis, E.
Formato: JOUR
Materias:
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
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00381098_v99_n10_p717_Chiappe
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00381098_v99_n10_p717_Chiappe
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spelling todo:paper_00381098_v99_n10_p717_Chiappe2023-10-03T14:49:08Z Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings Chiappe, G. Vergés, J.A. Louis, E. 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 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00381098_v99_n10_p717_Chiappe
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Chiappe, G.
Vergés, J.A.
Louis, E.
Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
topic_facet 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
description 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.
format JOUR
author Chiappe, G.
Vergés, J.A.
Louis, E.
author_facet Chiappe, G.
Vergés, J.A.
Louis, E.
author_sort Chiappe, G.
title Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
title_short Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
title_full Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
title_fullStr Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
title_full_unstemmed Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
title_sort recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings
url http://hdl.handle.net/20.500.12110/paper_00381098_v99_n10_p717_Chiappe
work_keys_str_mv AT chiappeg recoveryofthepersistentcurrentinducedbytheelectronelectroninteractioninmesoscopicmetallicrings
AT vergesja recoveryofthepersistentcurrentinducedbytheelectronelectroninteractioninmesoscopicmetallicrings
AT louise recoveryofthepersistentcurrentinducedbytheelectronelectroninteractioninmesoscopicmetallicrings
_version_ 1807318108138897408

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