Abstract

Thermally activated flux motion and specific electric resistance in Y358 were studied under different magnetic fields ranging from 0 to 15 kOe. Through investigating the broadening of normal-superconducting transition, we found that the thermally-activated-flux-motion model can describe the electronic effect near the superconducting transition temperature. By modifying this model, specific electric resistance at different magnetic fields was calculated.

Highlights

  • Wu et al [1] discovered a new compound, YBa2Cu3O7 or Y123, of the YBCO family withTc = 92 K—above the liquid-nitrogen temperature—which was composed of copper-oxide layers

  • Various models have been devised to analyze the broadening of electric-resistance transition region below the transition temperature of high-Tc superconductors under different magnetic fields

  • In some high-Tc superconductors, a good fit has been observed by employing the Ambegaokar-Halperin (AH) model [6]

Read more

Summary

Introduction

Wu et al [1] discovered a new compound, YBa2Cu3O7 or Y123, of the YBCO family with. Tc = 92 K—above the liquid-nitrogen temperature—which was composed of copper-oxide layers. Y358 (Y3Ba5Cu8O18) has been recently synthesized, with a transition temperature of about 2 K higher than that of Y123 [4,5]. This compound consists of five CuO2 layers and three CuO chains in the unit cell. Various models have been devised to analyze the broadening of electric-resistance transition region below the transition temperature of high-Tc superconductors under different magnetic fields. The flux-creep model, flux-flow model, and the model of phase slip, which results from fluctuations in superconductor order parameters, are being utilized to explain the broadening of specific-resistance transition in high-Tc superconductors under a magnetic field. We studied the magnetic properties and flux dynamics in Y358 through a TAFC model

Experimental Section
Results and Discussion
Conclusions

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.