Lambert, Colin and Hui, V. C. (1990) Localisation of excitations by particle-hole scattering in inhomogeneous superconductors. Physica B: Condensed Matter, 165-16 (2). pp. 1107-1108. ISSN 0921-4526Full text not available from this repository.
We demonstrate that the quasi-particle excitations of a two dimensional inhomogeneous superconductor may be localised by spatial fluctuations in the order parameter Δ (r). Two models of disorder are introduced. In the first, the magnitude of Δ (r) varies randomly, but the phase is constant. In the second, the phase varies randomly with position, but the magnitude of Δ (r) is constant. A finite size scaling technique is used to compute the inverse localisation length of long strips of finite width. The results suggest that for a two dimensional superconductor, fluctuations in |Δ(r)| can localise excitations, while fluctuations in the phase alone cannot.
|Journal or Publication Title:||Physica B: Condensed Matter|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||24 Oct 2012 10:17|
|Last Modified:||03 Nov 2015 16:28|
Actions (login required)