• About
  • Policies
  • What is open access
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Physics
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Physics
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Vortex imaging with varying temperature revealed by SHPM on Bi2Sr2CaCu2O8+y

      Thumbnail
      View / Download
      336.7 Kb
      Author(s)
      Mihalache, V.
      Dede, M.
      Oral, A.
      Sandu, V.
      Date
      2008
      Source Title
      Physica C : Superconductivity and its Applications
      Print ISSN
      0921-4534
      Publisher
      Elsevier B.V.
      Volume
      468
      Issue
      7-10
      Pages
      832 - 836
      Language
      English
      Type
      Article
      Item Usage Stats
      137
      views
      91
      downloads
      Abstract
      Scanning Hall probe microscopy with an effective spatial resolution of ∼1 μm has been used to investigate the vortex structures in superconducting Bi2Sr2CaCu2O8+δ single crystals in the temperature range 77.3-81.3 K and zero applied field (in the presence of the earth field). The vortex images were obtained in real time mode as the temperature increased slowly for 3.36 h. At 77.3 K, the vortices were arranged in a chain structure. With the increase of the temperature, two jumps in the vortex array occur at 77.3 K, immediately when the temperature starts to rise, and at 79.2 K with a good stability between jumps. The second jump is accompanied by the jump in the average magnetic induction when bundles of 4-5 additional vortices enter the scanning area and the vortex array get disordered. These directly visualized transitions in the vortex lattice are consistent with a vortex creep over the surface barriers at high temperatures. A short movie is presented. ,
      Keywords
      Bi-2212
      Surface barriers
      Vortex imaging
      Vortex structure
      Electromagnetic induction
      High temperature effects
      Single crystals
      Stability
      Superconducting devices
      Vortex flow
      Surface barriers
      Vortex imaging
      Vortex structure
      Semiconducting bismuth compounds
      Permalink
      http://hdl.handle.net/11693/23158
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.physc.2007.11.059
      Collections
      • Department of Physics 2397
      Show full item record

      Related items

      Showing items related by title, author, creator and subject.

      • Thumbnail

        Vortex lattice of a Bose-Einstein condensate as a photonic band gap material 

        Taşgin, M. E.; Müstecaplioǧlu, Ö. E.; Oktel, M. Ö. (IOP Institute of Physics Publishing, 2009)
        Photonic crystal behavior of a rotating Bose-Einstein condensate with a triangular vortex lattice is reviewed and a scheme for getting much wider band gaps is proposed. It is shown that photonic band gaps can be widened ...
      • Thumbnail

        Pairing and vortex lattices for interacting fermions in optical lattices with a large magnetic field 

        Zhai, H.; Umucalılar, R. O.; Oktel, M. Ö. (The American Physical Society, 2010)
        We study the structure of a pairing order parameter for spin-1/2 fermions with attractive interactions in a square lattice under a uniform magnetic field. Because the magnetic translation symmetry gives a unique degeneracy ...
      • Thumbnail

        Vortex lattice of a Bose-Einstein condensate in a rotating anisotropic trap 

        Oktel, M. Ö. (American Physical Society, 2004)
        The behavior of Bose-Einstein condensates (BEC) with a vortex lattice in a rotating anisotropic trap was studied. The single-particle wave functions for a rotating anisotropy trap were found by exactly diagonalizing the ...

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      LoginRegister

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy