2005/11/13 by Haim Beidenkopf, H. Beidenkopf, N. Avraham +9 · 4 citations
Materials Science · Physics and Astronomy · #Magnetic Properties and Applications #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.stat-mech #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevlett.95.257004
published as Phys. Rev. Lett. 95, 257004 (2005) · 5 pages, 4 figures. To be published in Phys. Rev. Lett
arxiv created 2005/11/13 · openalex publication_date 2005/12/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The thermodynamic phase diagram of Bi2Sr2CaCu2O8 was mapped by measuring local equilibrium magnetization M(H,T) in the presence of vortex shaking. Two equally sharp first-order magnetization steps are revealed in a single temperature sweep, manifesting a liquid-solid-liquid sequence. In addition, a second-order glass transition line is revealed by a sharp break in the equilibrium M(T) slope. The first- and second-order lines intersect at intermediate temperatures, suggesting the existence of four phases: Bragg glass and vortex crystal at low fields, glass and liquid at higher fields.