%0 Journal Article
%T Instabilities of the Vortex Lattice and the Peak Effect in Single Crystal YBa2Cu4O8
%J Condensed Matter | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/condmat4030074
%X We report on the measurements of the remnant magnetization, and hence critical current, in a single crystal of YBa 2Cu 4O 8. A peak in the temperature dependence of the critical current is observed when the external magnetic field is tilted away from the a¨Cb planes. The observed behavior is attributed to a thermally activated instability-driven vortex-lattice splitting or vortex chain formation. The nature of the peak and the possibility of a thermally-activated dimensional crossover have been discussed. View Full-Tex
%U https://www.mdpi.com/2410-3896/4/3/74