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Comparison of acoustic properties of ceramics copper-oxide and YBCO(x) in the 5-310 K temperature range.

[In Russian. / En russe.]

Author(s) : PAL-VAL L. N., PAL-VAL P. P., NACIK V. D., et al.

Type of article: Article

Summary

The comparative study of ultrasound absorption and velocity in these ceramic samples (x = 6.95 and 6.3) is made at 5-310 K and the frequency interval 47-370 kilohertz. It is shown that the ultrasound absorption on spectra of these samples is similar in the temperature intervals 30-60 and 235-250 K. It is more different in the temperature range 100-200 K. The temperature dependences of sound velocity are investigated in the ceramics copper-oxide for the first time. Some phase transition seems to take place and the hysteresis is supposed to be due to the development of a low-temperature phase domain structure.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1993-0688
  • Languages: Russian
  • Source: Fiz. nizk. Temp. - vol. 18 - n. 2
  • Publication date: 1992
  • Document available for consultation in the library of the IIR headquarters only.

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