Superconductivity and critical current density in LaFeAsO1-xFx compounds

Authors

Mahboobeh Shahbazi-Manshadi, University of WollongongFollow
C Shekhar, Banaras Hindu University India
O.N Srivastava, Banaras Hindu University India
Darren J. Attard, University of WollongongFollow
Germanas Peleckis, University of WollongongFollow
Yi Du, University of WollongongFollow
Zhenxiang Cheng, University of WollongongFollow
S X. Dou, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow

RIS ID

33962

Publication Details

Shahbazi, M, Shekhar, C, Srivastava, O, Attard, D, Peleckis, G, Du, Y, Cheng, ZX, Dou, SX & Wang, XL (2010), Superconductivity and critical current density in LaFeAsO_1-xF_x compounds, Thin Solid Films, 518(24, Supplement 1), pp. e42-e45.

Abstract

Here, we report our studies on the crystal structures, morphologies, and superconductivity in LaFeAsO_{1 − x}F_x compounds which were fabricated by solid state reaction. The crystal structures were refined using Rietveld refinement. Superconducting properties, such as critical temperature, T_c, critical current density, J_c, and upper critical field, H_c2, were determined using magneto-transport and magnetic measurements over a wide range of temperature below and above T_c, and in magnetic fields up to 14 T. A peak effect in the J_c versus field is observed at T < 15 K. Upper critical field in the ab and c directions is H^ab_c2 = 122.8 T and H^c_c2 = 38.6 T, respectively.

Grant Number

ARC/DP0770205

Additional Grant Number

http://purl.org/au-research/grants/ARC/DP0770205