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Magnetic properties of nickel clusters in nanoporous carbon |
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| Authors: | V M Fedosyuk A M Danishevskii D A Kurdyukov V B Shuman S K Gordeev |
| Institution: | (1) Institute of Solid-State and Semiconductor Physics, Academy of Sciences of Belarus, ul. P. Brovki 17, Minsk, 220018, Belarus;(2) Ioffe Physicotechnical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia;(3) Central Research Institute of Materials, ul. Paradnaya 8, St. Petersburg, 191014, Russia |
| Abstract: | The magnetic properties of nanoporous carbon samples whose pores were loaded by nickel are described. It is shown that a sample becomes superparamagnetic for temperatures T<T C (Ni) only in the case where a noticeable fraction of Ni is contained in the nanopores. The nanopore size estimated from magnetic measurements coincides with the estimates derived earlier from small-angle x-ray scattering studies. |
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