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Multi-Frequency EPR and DC Conductivity of Itinerant Spins in Single-Wall Carbon Nanotubes

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Abstract

Sealed, deoxygenated single-wall carbon nanotubes show two characteristic electron paramagnetic resonance (EPR) signals at g = 2.07 and g = 2.00 in the temperature range from 300 to 50 K. Reversible interconversion between both components was observed. The large g-shift and the temperature dependence of the EPR susceptibility of the g = 2.07 signal indicate that this signal can be attributed to itinerant spins. At low temperatures only the g = 2.00 signal remained, which could be further characterized using microwave frequencies up to 320 GHz. The direct current conductivity of a partially aligned sample was also measured. The room temperature value was estimated as 0.7 (Ωcm)−1. The observed temperature dependence can be described by assuming temperature-activated hopping in a small-gap semiconductor with an activation energy of 3.5 meV, similar to the characteristics of the previously measured 9.4 GHz microwave conductivity.

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References

  1. P. Petit, E. Jouguelet, J.E. Fischer, A.G. Rinzler, R.E. Smalley, Phys. Rev. B 56, 9275 (1997)

    Article  ADS  Google Scholar 

  2. A.S. Claye, N.M. Nemes, A. Janossy, J.E. Fischer, Phys. Rev. B 62, 4845 (2000)

    Article  ADS  Google Scholar 

  3. J.-P. Salvetat, T. Fehér, C. L’Huillier, F. Beuneu, L. Forró, Phys. Rev. B 72, 075440 (2005)

    Article  ADS  Google Scholar 

  4. B. Corzilius, K.-P. Dinse, K. Hata, J. van Slageren, Phys. Rev. B 75, 235416 (2007)

    Article  ADS  Google Scholar 

  5. B. Corzilius, K.-P. Dinse, K. Hata, M. Haluška, V. Skákalová, S. Roth, Phys. Stat. Sol. (b) 245, 2251 (2008)

    Google Scholar 

  6. R.J. Elliot, Phys. Rev. 96, 266 (1954)

    Article  ADS  Google Scholar 

  7. P. Byszewski, A. Nabialek, Europhys. Lett. 34, 31 (1996)

    Article  ADS  Google Scholar 

  8. T. Ando, J. Phys. Soc. Jpn. 69, 1757 (2000)

    Article  ADS  Google Scholar 

  9. D. Huertas-Hernando, F. Guinea, A. Brataas, Phys. Rev. B 74, 155426 (2006)

    Article  ADS  Google Scholar 

  10. F. Kuemmeth, S. Ilani, D.C. Ralph, P.L. McEuen, Nature 452, 448 (2008)

    Article  ADS  Google Scholar 

  11. K. Hata, D.N. Futaba, K. Mizuno, T. Namai, M. Yumura, S. Iijima, Science 306, 1362 (2004)

    Article  ADS  Google Scholar 

  12. A.K. Hassan, L.-C. Brunel, J. Magn. Reson. 142, 300 (2000)

    Article  ADS  Google Scholar 

  13. J. van Tol, L.-C. Brunel, R.J. Wylde, Rev. Sci. Instrum. 76, 074101 (2005)

    Article  ADS  Google Scholar 

  14. A. Kleinhammes, S.-H. Mao, X.-J. Yang, X.-P. Tang, H. Shimoda, J.P. Lu, O. Zhou, Y. Wu, Phys. Rev. B 68, 075418 (2003)

    Article  ADS  Google Scholar 

  15. V.M. Bermudez, L.M. Ericson, Langmuir 22, 2258 (2006)

    Article  Google Scholar 

  16. B. Corzilius, K.-P. Dinse, K. Hata, Phys. Chem. Chem. Phys. 9, 6063 (2007)

    Article  Google Scholar 

  17. D.-N. Peligrad, B. Nebendahl, C. Kessler, M. Mehring, A. Dulčiċ, M. Požek, D. Paar, Phys. Rev. B 58, 11652 (1998)

    Article  ADS  Google Scholar 

  18. H. Zhu, G. Zhao, C. Masarapu, D.P. Young, B. Wei, Appl. Phys. Lett. 86, 203107 (2005)

    Article  ADS  Google Scholar 

Download references

Acknowledgments

We are grateful to K. Hata (National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan), who provided us with SWNT samples. Financial support of the Deutsche Forschungsgemeinschaft is gratefully acknowledged. The National High Magnetic Field Laboratory (NHMFL) is operated by the National Science Foundation (DMR-08). Experiments at the NHFML (Tallahassee) were supported by a visiting professor fellowship to K.P.D.

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Authors and Affiliations

  1. Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany

    Klaus-Peter Dinse

  2. Center for Interdisciplinary Magnetic Resonance, National High Magnetic Field Laboratory, Florida State University, 1800 E. Paul Dirac Drive, Tallahassee, FL, 32310-3706, USA

    Johan van Tol & Andrew Ozarowski

  3. Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 166 Albany Street, Cambridge, MA, 02139, USA

    Björn Corzilius

Authors
  1. Klaus-Peter Dinse
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  2. Johan van Tol
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  4. Björn Corzilius
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Correspondence to Klaus-Peter Dinse.

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Dinse, KP., van Tol, J., Ozarowski, A. et al. Multi-Frequency EPR and DC Conductivity of Itinerant Spins in Single-Wall Carbon Nanotubes. Appl Magn Reson 37, 595–603 (2010). https://doi.org/10.1007/s00723-009-0084-5

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  • DOI: https://doi.org/10.1007/s00723-009-0084-5

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