ISSN:
1432-0630
Keywords:
74.50
;
74.70.V
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract fine structure was observed in the conductance curve of a tunneling junction composed of a single crystalline Bi2212 and an evaporated SnO2 film. It is similar to those of Bi2212-GaAs mechanical junctions and there is a certain correspondence between the structure and the phonon density of states. Thus the previous conclusion that the structure is due to phonons has been complemented by this work. The energy gap 2Δ was 57 meV at 13 K and T c was 78 K. 2Δ(0)/k B T c is then 8.3. Δ(T) showed the BCS-like temperature dependence.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00323676
