IDEAS home Printed from https://ideas.repec.org/a/nat/nature/v413y2001i6857d10.1038_35099527.html
   My bibliography  Save this article

Magnetic carbon

Author

Listed:
  • Tatiana L. Makarova

    (Ioffe Physico-Technical Institute
    Umeå University
    Institute for Physics, TU Ilmenau)

  • Bertil Sundqvist

    (Umeå University)

  • Roland Höhne

    (Leipzig University)

  • Pablo Esquinazi

    (Leipzig University)

  • Yakov Kopelevich

    (Instituto de Fisica, Unicamp)

  • Peter Scharff

    (Institute for Physics, TU Ilmenau)

  • Valerii A. Davydov

    (Institute of High Pressure Physics)

  • Ludmila S. Kashevarova

    (Institute of High Pressure Physics)

  • Aleksandra V. Rakhmanina

    (Institute of High Pressure Physics)

Abstract

The discovery of nanostructured forms of molecular carbon has led to renewed interest in the varied properties of this element. Both graphite and C60 can be electron-doped by alkali metals1 to become superconducting; transition temperatures of up to 52 K have been attained by field-induced hole-doping of C60 (ref. 2). Recent experiments3,4 and theoretical studies5,6 have suggested that electronic instabilities in pure graphite may give rise to superconducting and ferromagnetic properties, even at room temperature. Here we report the serendipitous discovery of strong magnetic signals in rhombohedral C60. Our intention was to search for superconductivity in polymerized C60; however, it appears that our high-pressure, high-temperature polymerization process results in a magnetically ordered state. The material exhibits features typical of ferromagnets: saturation magnetization, large hysteresis and attachment to a magnet at room temperature. The temperature dependences of the saturation and remanent magnetization indicate a Curie temperature near 500 K.

Suggested Citation

  • Tatiana L. Makarova & Bertil Sundqvist & Roland Höhne & Pablo Esquinazi & Yakov Kopelevich & Peter Scharff & Valerii A. Davydov & Ludmila S. Kashevarova & Aleksandra V. Rakhmanina, 2001. "Magnetic carbon," Nature, Nature, vol. 413(6857), pages 716-718, October.
    • Handle: RePEc:nat:nature:v:413:y:2001:i:6857:d:10.1038_35099527
    DOI: 10.1038/35099527
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/35099527
    File Function: Abstract
    Download Restriction: Access to the full text of the articles in this series is restricted.
    File URL: https://libkey.io/10.1038/35099527?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:nature:v:413:y:2001:i:6857:d:10.1038_35099527. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.