Generalized correlation functions for conductance fluctuations and the mesoscopic spin Hall effect
arXiv:1212.1911 · doi:10.1103/PhysRevB.86.235112
Abstract
We study the spin-Hall conductance fluctuations in ballistic mesoscopic systems. We obtain universal expressions for the spin and charge current fluctuations, cast in terms of current-current autocorrelation functions. We show that the latter are conveniently parametrized as deformed Lorentzian shape lines, functions of an external applied magnetic field and the Fermi energy. We find that the charge current fluctuations show quite unique statistical features at the symplectic-unitary crossover regime. Our findings are based on an evaluation of the generalized transmission coefficients correlation functions within the stub model and are amenable to experimental test.
Accepted to be published - Physical Review B (PRB)
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- Spin Hall angle fluctuations in a disorder device
- Current Status of Nuclear Physics Research
- Universal Features of Spin Transport and Breaking of Unitary Symmetries
- Spin Hall angle in single-layer graphene