Superconducting properties of ultrathin Bi2Sr2CaCu2O8+x single crystals
Abstract
We use Ar-ion milling to thin Bi2Sr2CaCu2O8+x (Bi2212) single crystals down to a few nanometers or one to two (CuO2)2 layers. In decreasing the thickness, the superconducting transition temperature gradually decreases to zero and the in-plane resistivity increases to large values indicating the existence of a superconductor-insulator transition in ultrathin Bi2212 single crystals.
- Publication:
-
Journal of Applied Physics
- Pub Date:
- August 2005
- DOI:
- 10.1063/1.2006992
- arXiv:
- arXiv:cond-mat/0507109
- Bibcode:
- 2005JAP....98c3913Y
- Keywords:
-
- 74.72.Hs;
- 74.10.+v;
- 74.62.Bf;
- 74.25.Fy;
- Bi-based cuprates;
- Occurrence potential candidates;
- Effects of material synthesis crystal structure and chemical composition;
- Transport properties;
- Condensed Matter - Superconductivity
- E-Print:
- 17 pages, 6 figures, to appear in J. Appl. Phys. 98(3) 2005