Magnetization loop and critical current of porous Bi-based HTSC

TL;DR

This paper investigates the magnetization behavior and critical current of porous Bi-based high-temperature superconductors using experimental data and a theoretical model for granular superconductors.

Contribution

It applies the Val'kov -- Khrustalev model to describe magnetization hysteresis in porous Bi-based HTSC, providing insights into their magnetic properties.

Findings

Magnetization hysteresis loops are successfully described by the model.

Porous Bi-based HTSC exhibit specific magnetic characteristics.

The study enhances understanding of critical current behavior in these materials.

Abstract

The magnetization of porous $Bi_{1.8}Pb_{0.3}Sr_2Ca_2Cu_3O_x$ have been investigated. The experimental magnetization hysteretic loops of $M(H)$ were described in the frames of Val'kov -- Khrustalev model developed for type II granular superconductors.