Lambert, Colin (1991) Generalized Landauer formulae for quasi-particle transport in disordered superconductors. Journal of Physics: Condensed Matter, 3 (34). pp. 6579-6587. ISSN 0953-8984Full text not available from this repository.
When a quasi-particle current passes into a disordered superconductor, from ideal normal leads connected to external reservoirs, a finite electrical resistance R(S) arises from scattering processes within the superconductor. A new formula for R(S) is obtained, which reduces to the well-known Landauer formula in the absence of superconductivity. If R0, R(a) (T0, T(a)) are reflection (transmission) coefficients associated with normal and Andreev scattering respectively, one finds, in one dimension at zero temperature, R(S) = (h/2e2)(R0 + T(a) + delta)/(R(a) + T0 - delta) where delta is a small parameter arising from the absence of inversion symmetry. Generalizations of this result to finite temperatures and higher dimensions are also obtained.
|Journal or Publication Title:||Journal of Physics: Condensed Matter|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||24 Oct 2012 10:25|
|Last Modified:||18 Jun 2015 06:05|
Actions (login required)