Thermally activated energy and critical magnetic fields of SmFeAsO$_{0.9}$F$_{0.1}$

TL;DR

This study investigates the flux flow and vortex glass transition in SmFeAsO$_{0.9}$F$_{0.1}$ superconductor under magnetic fields up to 9 T, analyzing thermally activated energy and critical magnetic fields using two methods.

Contribution

It provides a comparative analysis of thermally activated energy using conventional and theoretical approaches, and reports critical magnetic fields for this superconductor.

Findings

Thermally activated energy values are obtained and compared using two different methods.

Critical magnetic fields are determined from resistivity measurements.

The study enhances understanding of vortex dynamics in SmFeAsO$_{0.9}$F$_{0.1}$ superconductor.

Abstract

Thermally activated flux flow and vortex glass transition of recently discovered SmFeAsO$_{0.9}$F$_{0.1}$ superconductor are studied in magnetic fields up to 9.0 T. The thermally activated energy is analyzed in two analytic methods, of which one is conventional and generally used, while the other is closer to the theoretical description. The thermally activated energy values determined from both methods are discussed and compared. In addition, several critical magnetic fields determined from resistivity measurements are presented and discussed.