Porous vortex matter

S. S. Banerjee, E. Zeldov, A. Soibel, Y. Myasoedov, M. Rappaport, M. Menghini, Y. Fasano, F. de la Cruz, C. J. van der Beek, M. Konczykowski, T. Tamegai

Research output: Contribution to JournalArticleAcademicpeer-review


Structure, dynamics, and thermodynamic properties of vortex matter in the presence of a low density of columnar defects (CDs) were studied in BSCCO crystals. Magnetic decorations show that when vortices outnumber CDs a heterogeneous vortex matter is formed consisting of two populations of vortices: vortices residing on CDs form a matrix of pinned vortices, whereas the interstitial vortices form ordered crystallites within the `pores' of the matrix. Differential magneto-optical studies reveal that at elevated fields this porous phase melts in two stages, a first-order melting of the crystallites at a temperature considerably higher than the pristine melting, and a continuous melting of the matrix at still higher temperature. At low fields the two transitions occur simultaneously, giving rise to a sharp kink in the observed melting line.
Original languageEnglish
Pages (from-to)495-498
Number of pages4
JournalPhysica C. Superconductivity and its Applications
Early online date17 Jun 2004
Publication statusPublished - Aug 2004


Dive into the research topics of 'Porous vortex matter'. Together they form a unique fingerprint.

Cite this