Internal friction in the superconducting ceramic (BiPb)2Sr2Ca2Cu3Oy in the 6-290 K temperature range

B. K. Kardashev, S. P. Nikanorov, B. I. Smirnov, Michael T. Lanagan, N. Chen, K. C. Goretta

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Abstract

Damping of ultrasonic longitudinal vibrations in the superconducting (BiPb)2Sr2Ca2Cu3Oy, ceramic has been studied in the 6-290 K temperature range by the composite oscillator technique at vibrational strain amplitudes of up to 3 × 10-5. The amplitude-dependent internal friction, which is observed to exist at both room and helium temperatures, was found to be practically absent in the 100-140 K interval. The results obtained are attributed to specific features of dislocation motion in this material. Data on the effect of magnetic field on the acoustic characteristics at 7 K are presented.

Original languageEnglish (US)
Pages (from-to)1775-1780
Number of pages6
JournalPhysics of the Solid State
Volume38
Issue number11
StatePublished - Nov 1 1996

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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