For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
14
views
8
references
 Top references
cited by
0
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      89
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Strong enhancement of critical current density in both low & high fields and flux pinning mechanism under hydrostatic pressure in optimally doped (Ba,K)Fe2As2 single crystals

      Preprint

      Read this article at

      ScienceOpenArXiv
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Strong pinning depends on the pinning force strength and number density of effective defects. Using hydrostatic pressure method, we demonstrate that hydrostatic pressure up to 1.2 GPa can significantly enhance flux pinning or Jc by a factor of up to 5 especially in both low and high fields in optimally doped Ba0.6K0.4Fe2As2 crystals. Our analysis on the flux pining mechanism indicate that both pinning centre number density (Np) and pinning force (Fp) are greatly increased by the pressure and contribute to strong pinning.

          Related collections

          Most cited references8

          • Record: found
          • Abstract: not found
          • Article: not found

          Flux pinning mechanisms in type II superconductors

          D. Dew-Hughes (2006)
          Article 0 comments Cited 159 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Effects of Co substitution on thermodynamic and transport properties and anisotropic \(H_{c2}\) in Ba(Fe\(_{1-x}\)Co\(_x\))\(_2\)As\(_2\) single crystals

            S. Hannahs, A. Kracher, S Bud'ko … (2008)
            Single crystalline samples of Ba(Fe\(_{1-x}\)Co\(_x\))\(_2\)As\(_2\) with \(x < 0.12\) have been grown and characterized via microscopic, thermodynamic and transport measurements. With increasing Co substitution, the thermodynamic and transport signatures of the structural (high temperature tetragonal to low temperature orthorhombic) and magnetic (high temperature non magnetic to low temperature antiferromagnetic) transitions are suppressed at a rate of roughly 15 K per percent Co. In addition, for \(x \ge 0.038\) superconductivity is stabilized, rising to a maximum \(T_c\) of approximately 23 K for \(x \approx 0.07\) and decreasing for higher \(x\) values. The \(T - x\) phase diagram for Ba(Fe\(_{1-x}\)Co\(_x\))\(_2\)As\(_2\) indicates that either superconductivity can exist in both low temperature crystallographic phases or that there is a structural phase separation. Anisotropic, superconducting, upper critical field data (\(H_{c2}(T)\)) show a significant and clear change in anisotropy between samples that have higher temperature structural phase transitions and those that do not. These data show that the superconductivity is sensitive to the suppression of the higher temperature phase transition.
            Article 0 comments Cited 142 times – based on 0 reviews
            Preprint
                 Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              High current superconductivity in FeSe0.5Te0.5-coated conductors at 30 tesla.

              Xiaoya Shi, J. Jaroszynski, W Si … (2012)
              Although high-temperature superconductor cuprates have been discovered for more than 25 years, superconductors for high-field application are still based on low-temperature superconductors, such as Nb(3)Sn. The high anisotropies, brittle textures and high manufacturing costs limit the applicability of the cuprates. Here we demonstrate that the iron superconductors, without most of the drawbacks of the cuprates, have a superior high-field performance over low-temperature superconductors at 4.2 K. With a CeO(2) buffer, critical current densities >10(6)  A cm(-2) were observed in iron-chalcogenide FeSe(0.5)Te(0.5) films grown on single-crystalline and coated conductor substrates. These films are capable of carrying critical current densities exceeding 10(5) A cm(-2) under 30 tesla magnetic fields, which are much higher than those of low-temperature superconductors. High critical current densities, low magnetic field anisotropies and relatively strong grain coupling make iron-chalcogenide-coated conductors particularly attractive for high-field applications at liquid helium temperatures.
              Article 0 comments Cited 45 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Publication date Created: 2015-11-17
                Article
                ArXiV ID: 1511.05638
                SO-VID: 89272863-2bc7-4639-9065-2783481e690d
                License:

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

                History
                Custom metadata
                Comments Nil
                Categories cond-mat.supr-con cond-mat.mtrl-sci

                ScienceOpen disciplines: Condensed matter
                Data availability:
                ScienceOpen disciplines: Condensed matter

                Comments

                Comment on this article