التفاصيل البيبلوغرافية
| العنوان: |
Recovery of the persistent current induced by the electron-electron interaction in mesoscopic metallic rings |
| المؤلفون: |
Chiappe, G., Vergés, J.A., Louis, E. |
| المجموعة: |
Biblioteca Digital FCEN-UBA (Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires) |
| مصطلحات موضوعية: |
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 |
| الوصف: |
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. |
| نوع الوثيقة: |
journal/newspaper |
| اللغة: |
unknown |
| Relation: |
http://hdl.handle.net/20.500.12110/paper_00381098_v99_n10_p717_Chiappe |
| الاتاحة: |
https://hdl.handle.net/20.500.12110/paper_00381098_v99_n10_p717_Chiappe |
| Rights: |
info:eu-repo/semantics/openAccess ; http://creativecommons.org/licenses/by/2.5/ar |
| رقم الانضمام: |
edsbas.C3F5F1D |
| قاعدة البيانات: |
BASE |