Nb, Nb-Ar ... Nb-Ge

The phenomenon of superconductivity has gained a new
interest since the recent discovery of materials with
transition temperatures above 77K. The research on the new
substances has increasingly contributed to the progress of
materials science.
In volume III/21 the reported data on superconducting
materials, from the discovery of this phenomenon to the
present days of intensive research on high-Tc
superconductors, are compiled. The data comprise various
modifications of a material, e.g. bulk state, thin films,
implanted or filamentary wires. Where available, data
obtained under high presure or after high energy particle
irradiation are also tabulated. A particular effort was made
topresent not only the superconducting data for a given
substance, but also the complete characterization of the
analyzed samples. This characterizationcomprises the
metallurgical and the crystallographical analysis as well as
the analysis of other physical properties.
The goal of the volume is to establish a complete and
reliable compilation of critically reviewed experimental
data, excluding purely theoretical works.
The large amount of publications, more than 40.000 since
1913, requires a subdivision of the data in several
subvolumes, the second of which is presented herewith. No
such complete collection exists elsewhere, so that these
tables should respond to a real need of both physicists and
material scientists.