Temperature dependence investigation of dissipation processes in strongly anisotropic high-temperature superconductors of Bi-Pb-Sr-Ca-Cu-O system synthesized using solar energy

TL;DR

This study examines how temperature affects damping and vibration in Bi-Pb-Sr-Ca-Cu-O high-temperature superconductors, revealing a 'chaos' region that suggests the presence of additional magnetic phases above the critical temperature.

Contribution

It provides new insights into the temperature-dependent dissipation processes and phase behavior in anisotropic HTSC materials synthesized with solar energy.

Findings

Identification of a 'chaos' temperature region between 107-138 K.

Observation of ripples in dissipation and oscillation frequency.

Evidence suggesting existence of higher-temperature magnetic phases.

Abstract

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.