Thin films of Nb3Sn, Nb3Ga, and NbN deposited on sapphire substrates by different preparation techniques and diffusion wires were measured under hydrostatic pressures up to 15 kbar. The results on critical current and upper critical induction under pressure can be described by scaling laws similar to those already known for temperature as parameter. The anisotropies of the critical currents and fields depend on the microstructure of the samples. The pinning mechanisms are not changed under hydrostatic pressure, so that the pinning forces in these superconductors can be compared to existing pinning theories.
Similar content being viewed by others
References
C. C. Koch and D. S. Easton, Cryogenics 17, 391 (1977).
N. B. Brandt and E. Papp, Sov. Phys.—JETP 30, 595 (1970).
N. B. Brandt, J. V. Berman, and Y. P. Kurkin, Sov. Phys.—JETP, 42, 869 (1975).
W. A. Fietz and W. W. Webb, Phys. Rev. 178, 657 (1969).
E. J. Kramer, J. Appl. Phys. 44, 1360 (1973).
D. Dew-Hughes, Phil. Mag. 30, 293 (1974).
H. F. Braun, E. N. Haeussler, W. W. Sattler, and E. J. Saur, “High-Pressure and Low Temperature Physics”, in Proc. Int. Conf. on High Pressure and Low Temp. Phys., Cleveland, Ohio (1977), to be published.
J. Schawer, Diplomarbeit 1973, Giessen, unpublished.
D. Meyer, Diplomarbeit 1973, Giessen, unpublished.
G. W. Reppel and E. J. Saur, J. Low Temp. Phys. 17, 287 (1974).
D. Koch, G. Otto, and E. Saur, Phys. Lett. 4, 292 (1963).
H. Neubauer, Experiment. Techn. der Physik XX, 321 (1972).
H. Neubauer, Z. Phys. 226, 211 (1969).
B. Hillenbrand, H. Martens, H. Pfister, K. Schnitzke, and Y. Uzel, IEEE Trans. Magn. 13, 491 (1977).
Author information
Authors and Affiliations
Additional information
Supported by the Deutsche Forschungsgemeinschaft.
Rights and permissions
About this article
Cite this article
Sattler, W.W., Saur, E.J. Critical data of type II superconductors under hydrostatic pressure. J Low Temp Phys 34, 551–567 (1979). https://doi.org/10.1007/BF00114940
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00114940