Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1989-07-14
1991-04-02
Strecker, Gerard R.
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
324201, 324239, 505726, 505727, 505843, G01R 3312, G01N 2772, H01L 3900
Patent
active
050047264
ABSTRACT:
Apparatus and methodology for the rapid and inexpensive characterization of superconducting materials. The method and apparatus induces an alternating magnetic field in the sample to be tested. If the material is a superconductor odd harmonics are generated in the alternating magnetic response of the material near the transition temperature. The superconducting transitions are manifested by a peak or peaks in the odd harmonic components of the alternating magnetic response as a function of temperature. The peaks of the harmonic components are detected to indicate the presence and number of superconducting transitions.
REFERENCES:
patent: 4851762 (1989-07-01), Kim et al.
Journal of Applied Physics 52(11), Nov. 1981, pp. 6798-6805, "Superconducting Transition of Multiconnected Josephson Network".
Bhargava Rameshwar N.
Dorman Donald R.
Herko Samuel P.
Shaulov Avner A.
Botjer William L.
North American Philips Corp.
Strecker Gerard R.
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