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RESIDUAL HIGH FREQUENCY ABSORPTION AND MEMORY EFFECTS IN YBCO CERAMICS IN WEAK MAGNETIC FIELDS.

[In Russian. / En russe.]

Author(s) : KIRICHENKO A. Ja., CERPAK N. T.

Type of article: Article

Summary

THE DEPENDENCE OF HIGH FREQUENCY ABSORPTION IN THESE SUPERCONDUCTING CERAMICS ON THE MAGNETIC STATE OF A SAMPLE IS SHOWN. FIVE SUCH STATES FOR 2 COOLING REGIMES WERE INVESTIGATED. A SUPERCONDUCTING SAMPLE MAY HAVE THE SAME DECREMENT AT A DIFFERENT MAGNETIC PREHISTORY OF THE SAMPLE. MEMORY EFFECTS ARE REVEALED WITH THE REMOVAL OF A MAGNETIC FIELD, WHEN THE DECREMENTS OBTAIN DIFFERENT VALUES DEPENDING ON THE PREHISTORY. THE EXPERIMENTSWERE CARRIED OUT AT 78 K AT A FREQUENCY OF 2.5 MHERTZ IN THE FIELDS UP TO 160 OERSTEDS. THE RELATION BETWEEN THE DECREMENTS FOR 3 MAGNETIC STATES OF THE SAMPLE IS OBTAINED.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1991-1973
  • Languages: Russian
  • Source: Fiz. nizk. Temp. - vol. 16 - n. 6
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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