2002/08/24 by M. V. Indenbom, Indenbom, M. V., Ernst Helmut Brandt +7
Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · Physics and Astronomy · #FOS: Physical sciences #Geological and Geophysical Studies #Geomagnetism and Paleomagnetism Studies #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0208468
Summitted to Phys.Rev. B 8.05.2002, resubmitted 23.08.2002; 7 pages, 6 figures
arxiv created 2002/08/24 · openalex publication_date 2002/08/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Magneto-optical observations of a second flux front, which occurs at the second peak in the magnetization of Bi2 Sr2 CaCu2 Ox single crystals related to the known first order ``vortex-lattice melting'', are reconsidered. We show that, in thin samples, electrodynamics necessarily leads to an extended region in which the magnetic induction adopts a nearly constant value close to that at which the phase transition occurs at thermal equilibrium. In this region a dynamical phase mixture of vortex ``solid'' and ``liquid'' should exist. Interestingly, the observed second flux front does not mark the ``melting'' front, as it was naively interpreted earlier, but indicates the disappearance of the last ``solid droplets''.