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Electron spin resonance of nanoporous carbon with embedded cobalt clusters

  • Fullerenes and Atomic Clusters
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Abstract

Cobalt clusters were embedded into a nanoporous carbon powder (with pores about 2 nm in size) prepared from a B4C carbide powder. Electron spin resonance (ESR) measurements were carried out within a broad temperature range. At all temperatures, the ESR spectrum consisted of two overlapping resonance Lorentzian lines. The temperature dependences of the integrated intensities and linewidths and of the resonance fields were determined. A theoretical analysis of these dependences shows that they can be described in terms of the theory of a disordered magnetic medium with two spin systems with different properties.

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Authors and Affiliations

  1. Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia

    A. I. Veinger, A. M. Danishevskii, V. B. Shuman & D. A. Kurdyukov

  2. Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, pr. Nauki 45,, Kiev, 03028, Ukraine

    B. D. Shanina

  3. Central Materials Research Institute, St. Petersburg, 191014, Russia

    S. K. Gordeev

  4. Russian Science Center Applied Chemistry, St. Petersburg, Russia

    Yu. A. Kukushkina

Authors
  1. A. I. Veinger
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  2. B. D. Shanina
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  3. A. M. Danishevskii
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  4. V. B. Shuman
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  5. D. A. Kurdyukov
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  6. S. K. Gordeev
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  7. Yu. A. Kukushkina
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Veinger, A.I., Shanina, B.D., Danishevskii, A.M. et al. Electron spin resonance of nanoporous carbon with embedded cobalt clusters. Phys. Solid State 48, 172–176 (2006). https://doi.org/10.1134/S1063783406010318

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  • DOI: https://doi.org/10.1134/S1063783406010318

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