Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1997-04-28
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
LaTeX, 4 pages,5 figures
Scientific paper
For polycrystalline specimens of zeolites treated to thermal oxidation we have revealed and studied the weak spectra of reproducible magnetic microwave absorption fluctuations at a frequency of 9.4 GHz. The investigation was carried out by the ESR method over the 77-500 K temperature range. The fluctuation spectra have features typical of mesoscopic phenomena observed previously in ESR spectra of high temperature superconductors and metals at temperatures below critical. The similar fluctuation spectra were obtained at 300 K for some oxides, oxidized silver and gold particles. The experiments performed are, perhaps, the first observation of the phenomenon at unusually high temperatures which has been observed only in superconducting systems.
Martyanov O. N.
Yudanov V. F.
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