Giant magnetic flux jumps in single crystals of Ba0.6K0.4Fe2As2

Authors

Ki-Young Choi, Sogang University Seoul
Gun Sang Jeon, Ewah Womans University Seoul Republic of Korea
X.F Wang, University of Science and Technology China
X.H Chen, Hefei National Laboratory China
Xiaolin Wang, University of WollongongFollow
Myung-Hwa Jung, Sogang University, South Korea
Sung-Ik Lee, Sogang University, South Korea
Gangseo Park, Sogang University Seoul Republic of korea

RIS ID

37731

Publication Details

Choi, K., Jeon, G., Wang, X., Chen, X., Wang, X., Jung, M., Lee, S. and Park, G. (2011). Giant magnetic flux jumps in single crystals of Ba_0.6K_0.4Fe₂As₂. Applied Physics Letters, 98 (18), 1-3.

Abstract

Giant magnetic flux jumps are observed in magnetic hysteresis loops of Ba_0.6K_0.4Fe₂As₂ single crystals. The size of the flux jumps, which appear only at low temperatures (T<4 >K), is so large that it can transform the whole superconducting state into the normal state. The recovery rate to the superconducting state is rather slow, although the superconducting state is almost fully recovered. We show that theoretical predictions based on the adiabatic approach with nonlocal electrodynamics give a good explanation of the flux jumps observed in the single crystals of Ba_0.6K_0.4Fe₂As₂.

Grant Number

ARC/LP0882430

Additional Grant Number

http://purl.org/au-research/grants/ARC/LP0882430