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Mesoscopic Charge Relaxation | | Simon E. Nigg
; Rosa Lopez
; Markus Buttiker
; | | Date: |
23 Jun 2006 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | | Abstract: | We consider charge relaxation in the mesoscopic equivalent of an RC circuit. For a single-channel, spin-polarized contact, self-consistent scattering theory predicts a universal charge relaxation resistance equal to half a resistance quantum independent of the transmission properties of the contact. This prediction is in good agreement with recent experimental results. We use a tunneling Hamiltonian formalism and show in Hartree-Fock approximation, that at zero temperature the charge relaxation resistance is universal even in the presence of Coulomb blockade effects. We explore departures from universality as a function of temperature and magnetic field. | | Source: | arXiv, cond-mat/0606603 | | Services: | Forum | Review | PDF | Favorites | |
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