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Magnetic field; shielding; high-T_c coatings

Studies on the propagation of AC magnetic field through plasma-sprayed superconducting Y₁Ba₂Cu₃O_7−x coatings show that complete shielding is achieved up to a certain critical magnetic field strengthH₀. Increase in the thickness orJ_c of the specimen increases theH₀ value. Flux-trapping occurs in the specimen at high frequencies and the frequency at which it occurs increases with increase in specimenJ_c.

J Karthikeyan¹ A S Paithankar¹ P Chaddah^{1 2} N Venkatramani¹ K P Sreekumar¹ V K Rohatgi¹

1. Plasma Physics Division, Bhabha Atomic Research Centre, Bombay - 400 085, India
2. Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay - 400 085, India

Published

August 1991