Crossover and scaling in a two-dimensional field-tuned superconductor

Abstract

Using an analysis similar to that of Imry and Wortis, it is shown that the apparent first order superconductor to metal transition, which has been claimed to exist at low values of the magnetic field in a two-dimensional field-tuned system at zero temperature,can be consistentlyinterpreted as a sharp crossover from a strong superconductor to an inhomogeneous state, which is a weak superconductor. The true zero-temperature superconductor to insulator transition within the inhomogenous state is conjectured to be that of randomly diluted XY model. An explaination of the observed finite temperature approximate scaling of resistivity close to the critical point is speculated within this model.

5 pages, 2 figures, corrected and modified according to referee Reports

References in corpus (1)

• Superconductor-Insulator Transition in a Capacitively Coupled Dissipative Environment

Cited by in corpus (5)

• Magnetically Induced Metallic Phase in Superconducting Tantalum Films
• Anomalous quantum metal in a 2D crystalline superconductor with intrinsic electronic non-uniformity
• Non-thermal origin of nonlinear transport across magnetically induced superconductor-metal-insulator transition
• Observation of a subgap density of states in superconductor-normal metal bilayers in the Cooper limit
• Evidence of spatial inhomogeneity near the onset of magnetically induced insulating state in superconducting thin films