Absence of a Zero Temperature Vortex Solid Phase in Strongly Disordered Superconducting Bi Films

Details Absence of a Zero Temperature Vortex Solid Phase in Strongly Disordered Superconducting Bi Films Absence of a Zero Temperature Vortex Solid Phase in Strongly Disordered Superconducting Bi Films

1999-09-22

arxiv.org/abs/cond-mat/9909329v1

Physics

Condensed Matter

Strongly Correlated Electrons

REVTEX, 4 pages, 3 figures

Scientific paper

10.1103/PhysRevB.61.R9245

We present low temperature measurements of the resistance in magnetic field of superconducting ultrathin amorphous Bi films with normal state sheet resistances, $R_N$, near the resistance quantum, $R_Q={\hbar\over {e^2}}$. For $R_NR_Q$ there is no vortex solid and, hence, no zero resistance state in magnetic field. We describe how disorder induced quantum and/or mesoscopic fluctuations can eliminate the vortex solid and also discuss implications for the magnetic-field-tuned superconductor-insulator transition.

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