Vortex phase transition and superconducting properties in quasi-two-dimensional k-(BEDT-TTF)2Cu[N(CN)2]Br organic superconductor

Authors

  • Hassan EL OUADDI Faculty of Sciences, University Ibn Zohr
  • Ahmed TIRBIYINE Faculty of Sciences, University Ibn Zohr
  • Ahmed TAOUFIK Faculty of Sciences, University Ibn Zohr
  • Youssef AIT AHMED Faculty of Sciences, University Ibn Zohr
  • Fatiha CHIBAN Faculty of Sciences, University Ibn Zohr
  • Hassan CHAIB Polydisciplinary Faculty , University Ibn Zoh, Ouarzazate, Morocco
  • Abdelhakim NAFIDI Faculty of Sciences, University Ibn Zohr
  • Sadok SENOUSSI University Paris-Sud, Orsay, France

Keywords:

ORGANIC SUPERCONDUCTOR, CRITICAL CURRENT, SHIELDING EFFECT, MAGNETIC SUSCEPTIBILITY, VORTEX PINNING.

Abstract

We report investigations of the low temperature dc susceptibility and the magnetization on the layered organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br near 80 K and the effect of disorder on the superconducting transition temperature Tc. The shielding effect (S) and the critical current density Jc were studied (with H parallel to the c axis of the crystal). Jc can be estimated by analysis of magnetic hysteresis measurement using the Bean model. For each temperature value, we observed two regimes in the critical current density Jc(H). Our results show that the magnetic properties of these compounds depend strongly on the cooling rate. The structural transformation which occurs at the vicinity of 80 K very strongly influences the physics of vortex lattice and the associated magnetic behavior.

Author Biography

Hassan EL OUADDI, Faculty of Sciences, University Ibn Zohr

Departement of physics, Faculty of Sciences, University Ibn Zohr Agadir moocco.

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Published

2018-03-21

How to Cite

EL OUADDI, H., TIRBIYINE, A., TAOUFIK, A., AIT AHMED, Y., CHIBAN, F., CHAIB, H., NAFIDI, A., & SENOUSSI, S. (2018). Vortex phase transition and superconducting properties in quasi-two-dimensional k-(BEDT-TTF)2Cu[N(CN)2]Br organic superconductor. OAJ Materials and Devices, 3(1). Retrieved from http://caip.co-ac.com/index.php/materialsanddevices/article/view/25

Issue

Vol. 3 No. 1 (2018)

Section

Articles

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