Transport mechanisms in HTS junctions

Golubov, A.A. and Devyatov, I.A. and Kupriyanov, M. Yu. and Gerritsma, G.J. and Rogalla, H. (1998) Transport mechanisms in HTS junctions. Journal of Physics and Chemistry of Solids, 59 (10-12). pp. 2053-2057. ISSN 0022-3697

PDF
Restricted to UT campus only: Request a copy
126Kb

Abstract:	Transport mechanisms in HTS Josephson Junctions are discussed theoretically. Two types of conductive channels are considered: geometrical constrictions and localized electronic states (LS). Temperature dependencies of excess and critical currents in ScS, SNcNS and SIS junctions are calculated in the framework of the models assuming transport via geometrical constrictions or resonant tunnelling via LS. The consequences of d-wave pairing symmetry are discussed qualitatively. We argue that both regimes of large and small widths of a channel in the momentum space are relevant to different types of HTS interfaces. The first regime is possibly realized at grain boundaries and HTS/noble metal interfaces, while the other — in semiconducting barriers. We discuss an applicability of these models to description of the data for critical currents in YBCO/PBCO ramp junctions and HTS SNS junctions.
Item Type:	Article
Copyright:	© 1998 Elsevier
Faculty:	Science and Technology (TNW)
Research Group:	Low Temperatures - Biomagnetism (LT)
Link to this item:	http://purl.utwente.nl/publications/73841
Official URL:	http://dx.doi.org/10.1016/S0022-3697(98)00186-3
Export this item as:	BibTeX EndNote HTML Citation Reference Manager

Show download statistics for this publication

Repository Staff Only: item control page

Metis ID: 128853