Document Detail

Strongly Disordered TiN and NbTiN s-Wave Superconductors Probed by Microwave Electrodynamics.
MedLine Citation:
PMID:  23005319     Owner:  NLM     Status:  In-Data-Review    
We probe the effects of strong disorder (2.4<k_{F}l<8.6) on superconductivity in thin films of niobium titanium nitride and titanium nitride by measuring the microwave electrodynamics in coplanar waveguide resonators. We find a gradual evolution of the electromagnetic response with disorder, deviating from BCS theory, for both materials. This result can be understood as due to changes in the quasiparticle density of states, induced by the short elastic scattering length. The observations are consistent with a model using an effective pair breaker, dependent on the level of disorder.
E F C Driessen; P C J J Coumou; R R Tromp; P J de Visser; T M Klapwijk
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Publication Detail:
Type:  Journal Article     Date:  2012-09-07
Journal Detail:
Title:  Physical review letters     Volume:  109     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-09-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  107003     Citation Subset:  IM    
Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands.
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