Vortex dynamics in (Tl,Pb)(Sr,Ba)2Ca2Cu3Oy single crystal

Authors

Shokat Keshavarzi, Shahrekord University, Iran
Josip Horvat, University of WollongongFollow
Meng J. Qin, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

20993

Publication Details

Keshavarzi, S, Horvat, J, Qin, MJ, Wang, X & Dou, SX (2007), Vortex dynamics in (Tl,Pb)(Sr,Ba)2Ca2Cu3Oy single crystal, Physica C: Superconductivity and its Applications, 460-462(Part 2), pp. 1241-1242.

Abstract

Magnetic moment measurements performed on a single crystal sample of (Tl,Pb)(Sr,Ba)₂Ca₂Cu₃O_y reveal an increase in magneticmoment at intermediate fields. Magnetic hysteresis (m-H) loops were taken at different constant temperatures using either a MPMS-5T SQUID magnetometer or a PPMS-9T magnetometer and within the temperature range 0.1 < T/T_c < 0.85. Vortex dynamics at fieldsbelow the peak in hysteresis loops for the sample is shown to be well explained by a quasi-lattice Bragg glass state and elastic collectiv evortex creep.