Noisy dynamics of magnetic flux in mesoscopic cylinders
نویسندگان
چکیده
We study magnetic fluxes and currents in mesoscopic systems of cylindrical symmetry like rings, toroids and cylinders. We analyze the time evolution of the magnetic flux and the characteristic time of a formation of the ordered state. We investigate how, starting from some symmetric initial state, the magnetic flux or the current approach their corresponding asymptotic state.
منابع مشابه
ar X iv : c on d - m at / 0 20 64 78 v 1 2 5 Ju n 20 02 Currents in System of Noisy Mesoscopic Rings
A semi-phenomenological model is proposed to study dynamics and steady-states of magnetic fluxes and currents in mesoscopic rings and cylinders at non-zero temperature. The model is based on a Langevin equation for a flux subject to zero-mean thermal equilibrium Nyquist noise. Quenched randomness, which mimics disorder, is included via the fluctuating parameter method. In the noiseless case, th...
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