Khaykovich B.; Konczykowski M.; Teitelbaum K.; Zeldov E.; Shtrikman H.; Rappaport M.
(1998)
The first-order phase transition of the vortex-lattice in Bi2Sr2CaCu2O8 crystals is shown to transform into a continuous transition when disorder is introduced via a very low concentration of columnar defects. We demonstrate ...