Abstract
We study transport properties of thin films near the superconductor-insulator transition. Formulated in a phase representation, the key new feature of our model is the assumption of a local Ohmic dissipative mechanism. Coarse graining leads to a Ginzburg-Landau description, with non-Ohmic dynamics for the order parameter. For strong enough damping a new universality class is found. It is characterized by a nonuniversal dc conductivity, and a damping-dependent dynamical critical exponent. The formulation also provides a description of the magnetic-field-tuned transition. Several microscopic mechanisms are proposed as the origin of the dissipation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
