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

Solid State Communications

Volumn 99, Issue 10, 1996, Pages 717-721

  Chiappe, G ^a   Verges J A ^b,c   Louis, E ^b  

^a UNIVERSIDAD DE BUENOS AIRES   (Argentina)

^b UNIVERSITY OF ALICANTE   (Spain)

^c UNIVERSIDAD AUTÓNOMA DE MADRID   (Spain)

Author keywords

A. nanostructures; D. electron electron interactions; D. electronic transport

Indexed keywords

CORRELATION METHODS; ELECTRIC CURRENTS; ELECTRONS; FOURIER TRANSFORMS; MAGNETIC FIELD EFFECTS; PERTURBATION TECHNIQUES;

ELECTRON ELECTRON INTERACTIONS; HAMILTONIAN; HUBBARD TERM;

NANOSTRUCTURED MATERIALS;

EID: 0030244148     PISSN: 00381098     EISSN: None     Source Type: Journal    
DOI: 10.1016/0038-1098(96)00181-0     Document Type: Article

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24. Note that although the qualitative behavior of the current vs U was correctly described in [7], the actual increments in its amplitude were much lower than those obtained here, likely due to the spinless fermions model and/or the small rings investigated in [7]. On the other hand, the maximum in the current vs U is not accounted for by means of renormalization group equations which do not incorporate 4kf impurity scattering [9], as discussed in [10]. We finally note that this maximum was already observed in the behavior of the localization length for the Anderson-Hubbard Hamiltonian [18].