Physics – Condensed Matter – Superconductivity
Scientific paper
2008-09-09
Eur. Phys. J. B 65, 213 (2008)
Physics
Condensed Matter
Superconductivity
Scientific paper
10.1140/epjb/e2008-00352-1
The time-averaged and low--frequency noise transport properties were investigated in the vicinity of the superconductor--insulator transition for a Bi$_2$Sr$_{2-x}$La$_{x}$CuO$_{6+\delta}$ ($x=0.3$) thin film. The results are consistent with a superconductor (metal) embedded in a strong insulator, the latter showing two-dimensional variable range hopping properties. The weak insulator behavior -- if any -- is attributed to the metallic inclusions only.
Fruchter Luc
Li Zaidong
Raffy H.
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