Original Paper

Electron paramagnetic resonance and non-resonant microwave absorption of single wall carbon nanotubes

  1. B. Corzilius1,*,
  2. S. Agarwal1,
  3. K.-P. Dinse1,
  4. K. Hata2

Article first published online: 12 NOV 2007

DOI: 10.1002/pssb.200776175

Issue

physica status solidi (b)

physica status solidi (b)

Special Issue: Electronic Properties of Novel Nanostructures

Volume 244, Issue 11, pages 3890–3895, November 2007

Additional Information

How to Cite

Corzilius, B., Agarwal, S., Dinse, K.-P. and Hata, K. (2007), Electron paramagnetic resonance and non-resonant microwave absorption of single wall carbon nanotubes. Phys. Status Solidi B, 244: 3890–3895. doi: 10.1002/pssb.200776175

Author Information

  1. 1

    Physikalische Chemie III, Technische Universität Darmstadt, Petersenstraße 20, 64287 Darmstadt, Germany

  2. 2

    AIST, Tsukuba Central 5, Tsukuba 305-8565, Japan

*Phone: +49 6151 16 2796, Fax: +49 6151 16 4347

Publication History

  1. Issue published online: 12 NOV 2007
  2. Article first published online: 12 NOV 2007
  3. Manuscript Accepted: 21 SEP 2007
  4. Manuscript Revised: 9 AUG 2007
  5. Manuscript Received: 30 APR 2007

Funded by

  • Acknowledgements We are grateful to Dr. P. Jakes, providing enriched N@C60. Financial support by the “Deutsche Forschungsgemeinschaft” (grant Di182/23) is gratefully acknowledged.

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Keywords:

  • 71.20.Tx;
  • 73.22.−f;
  • 76.30.Da

Abstract

Single wall carbon nanotubes (SWNT) prepared by the “super growth” method exhibit electron paramagnetic resonance (EPR) signals, which originate from temperature activated detrapping of spins. Non-resonant microwave absorption in the temperature range below 20 K is indicative for the opening of a small gap at the Fermi level for tubes of metallic character, which might indicate a transition into a superconducting (SC) state. The expected concurrent microwave field inhomogeneity has been detected by a transient nutation experiment. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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