Magnetic measurements and kinetic energy of the superconducting condensate in SmBa_2Cu_3O_{7-\delta}

TL;DR

This study investigates the in-field kinetic energy of the superconducting condensate in SmBa2Cu3O7−δ, revealing differences due to granularity and estimating key superconducting parameters through magnetization measurements.

Contribution

It provides new insights into the kinetic energy behavior of SmBa2Cu3O7−δ near the transition temperature using magnetization data and analyzes effects of granularity on superconducting properties.

Findings

Kinetic energy measured below the irreversibility line in two samples.

Differences in kinetic energy attributed to granularity effects.

Estimated penetration depth and upper critical field.

Abstract

We report in-field kinetic energy results in the temperature region closely below the transition temperature of two differently prepared polycrystalline samples of the superconducting cuprate SmBa$_{\text{2}}$Cu$_{\text{3}}$O$_{7-\delta}$. The kinetic energy was determined from magnetization measurements performed above the irreversibility line defined by the splitting between the curves obtained according the ZFC and FC prescriptions. The results are analyzed in the intermediate field regime where the London approximation can be used for describing the magnetization. From the analysis, estimations were carried out for the penetration depth and the upper critical field of the studied samples.The difference between the kinectic energy magnitudes for the two studied samples is ascribed to effects from granularity.