Blog
About

  • Record: found
  • Abstract: found
  • Article: found
Is Open Access

Effect of magnetic fullerene on magnetization reversal created at the Fe/C60 interface

Read this article at

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

      Probing the hybridized magnetic interface between organic semiconductor (OSC) and ferromagnetic (FM) layers has drawn significant attention in recent years because of their potential in spintronic applications. Recent studies demonstrate various aspects of organic spintronics such as magnetoresistance, induced interface moment etc. However, not much work has been performed to investigate the implications of such OSC/FM interfaces on the magnetization reversal and domain structure which are the utmost requirements for any applications. Here, we show that non-magnetic Fullerene can obtain non-negligible magnetic moment at the interface of Fe(15 nm)/C 60(40 nm) bilayer. This leads to substantial effect on both the magnetic domain structure as well as the magnetization reversal when compared to a single layer of Fe(15 nm). This is corroborated by the polarized neutron reflectivity (PNR) data which indicates presence of hybridization at the interface by the reduction of magnetic moment in Fe. Afterwards, upto 1.9 nm of C 60 near the interface exhibits magnetic moment. From the PNR measurements it was found that the magnetic C 60 layer prefers to be aligned anti-parallel with the Fe layer at the remanant state. The later observation has been confirmed by domain imaging via magneto-optic Kerr microscopy.

      Related collections

      Most cited references 47

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

      Surface Studies of Solids by Total Reflection of X-Rays

       L. G. Parratt (1954)
        Bookmark
        • Record: found
        • Abstract: found
        • Article: not found

        Spin routes in organic semiconductors.

        Organic semiconductors are characterized by a very low spin-orbit interaction, which, together with their chemical flexibility and relatively low production costs, makes them an ideal materials system for spintronics applications. The first experiments on spin injection and transport occurred only a few years ago, and since then considerable progress has been made in improving performance as well as in understanding the mechanisms affecting spin-related phenomena. Nevertheless, several challenges remain in both device performance and fundamental understanding before organic semiconductors can compete with inorganic semiconductors or metals in the development of realistic spintronics applications. In this article we summarize the main experimental results and their connections with devices such as light-emitting diodes and electronic memory devices, and we outline the scientific and technological issues that make organic spintronics a young but exciting field.
          Bookmark
          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          Unravelling the role of the interface for spin injection into organic semiconductors

          Whereas spintronics brings the spin degree of freedom to electronic devices, molecular/organic electronics adds the opportunity to play with the chemical versatility. Here we show how, as a contender to commonly used inorganic materials, organic/molecular based spintronics devices can exhibit very large magnetoresistance and lead to tailored spin polarizations. We report on giant tunnel magnetoresistance of up to 300% in a (La,Sr)MnO3/Alq3/Co nanometer size magnetic tunnel junction. Moreover, we propose a spin dependent transport model giving a new understanding of spin injection into organic materials/molecules. Our findings bring a new insight on how one could tune spin injection by molecular engineering and paves the way to chemical tailoring of the properties of spintronics devices.
            Bookmark

            Author and article information

            Affiliations
            [1 ]ISNI 0000 0004 1764 227X, GRID grid.419643.d, Laboratory for Nanomagnetism and Magnetic Materials (LNMM), School of Physical Sciences, , National Institute of Science Education and Research (NISER), HBNI, ; Jatni, 752050 India
            [2 ]ISNI 0000 0001 2297 375X, GRID grid.8385.6, Jülich Centre for Neutron Science (JCNS), Heinz Maier-Leibnitz Zentrum (MLZ), , Forschungszentrum Jülich GmbH, ; Lichtenbergstr. 1, 85748 Garching, Germany
            [3 ]ISNI 0000 0004 1796 3268, GRID grid.419701.a, CSIR - National Physical Laboratory, ; Dr. K. S. Krishnan Marg, New Delhi, 110012 India
            [4 ]ISNI 0000 0004 1796 3268, GRID grid.419701.a, Academy of Scientific and Innovative Research (AcSIR), , CSIR-National Physical Laboratory, ; New Delhi, 110012 India
            [5 ]ISNI 0000 0004 1792 1607, GRID grid.418808.d, CSIR - Institute of Minerals and Materials Technology, Bhubaneswar, ; Odisha, 51013 India
            [6 ]ISNI 0000 0001 2297 375X, GRID grid.8385.6, PGI-4: Scattering Methods Forschungszentrum Jülich GmbH, ; 52425 Jülich, Germany
            Contributors
            ORCID: http://orcid.org/0000-0002-1044-7645, sbedanta@niser.ac.in
            Journal
            Sci Rep
            Sci Rep
            Scientific Reports
            Nature Publishing Group UK (London )
            2045-2322
            3 April 2018
            3 April 2018
            2018
            : 8
            29615794 5882892 23864 10.1038/s41598-018-23864-8
            © The Author(s) 2018

            Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

            Categories
            Article
            Custom metadata
            © The Author(s) 2018

            Uncategorized

            Comments

            Comment on this article