Physics – Condensed Matter – Superconductivity
Scientific paper
2008-10-30
Physics
Condensed Matter
Superconductivity
10 pages, 0 figures
Scientific paper
The investigation of temperature dependence of damping and period of vibrations of HTSC superconductive cylinder of Bi-Pb-Sr-Ca-Cu-O system suspended by a thin elastic thread and performing axial-torsional vibrations in a magnetic field at temperatures above the critical one for the main phase Tc=107 K were carried out. It was observed some "chaos" temperature region in the temperature interval 107-138 K, where it is seen separate ripples of dissipation and oscillation frequency. It is assumed that the "chaos" region could point to a possibility of existence of other magnetic and more high-temperature phases as single islands in a normal materials matrix.
Acrivos J. V.
Ashimov S. M.
Chigvinadze J. G.
Gulamova D. D.
Machaidze T. V.
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