Probable observation in tunneling of two distinct gaps and {Tc}`s in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}
- Polytechnic Univ., Brooklyn, NY (United States)
- Argonne National Lab., IL (United States)
- Oak Ridge National Lab., TN (United States)
The tunneling conductance G(V,T) of (Pb film)-I-BI{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} junctions on cleaved ab planes typically reveals two gap features. The inner gap {Delta}{sub i} closes, in a BCS-like fashion, at a temperature T{sub ci} below the crystal {Tc} (90K). We can explain the inner gap behaviour {Delta}{sub i}(T), and anomalous observation of the Pb gap at V=O, on a model assuming three superconducting layers per cell, between which carriers hop and pair.
- Research Organization:
- Argonne National Lab., IL (United States); Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10148828
- Report Number(s):
- ANL/MSD/PP--73106; ON: DE94011472
- Country of Publication:
- United States
- Language:
- English
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