The spin-glass state in Y2Co2/3Mo4/3O7 and Y2Fe2/3Mo4/3O7 complex oxides |
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| Authors: | G V Bazuev and A V Korolev |
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| Institution: | (1) Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620219, Russia;(2) Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Yekaterinburg, 620219, Russia |
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| Abstract: | The magnetic properties of Y2
B
2/3Mo4/3O7 complex oxides (B = Co, Fe) were studied in the temperature range 2–300 K. At low temperatures, these compounds exhibit spin-glass properties
with freezing temperatures T
f=26 and 33 K, respectively, and typical features in the magnetic hysteresis and in the dependences of the real part of the
dynamic magnetic susceptibility on temperature and ac magnetic field frequency. Above T
f, the static magnetic susceptibility of the samples studied depends on the applied magnetic field, which is tentatively assigned
to the presence of metallic cobalt and/or yttrium orthoferrite YFeO3 introduced in the course of sample preparation.
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Translated from Fizika Tverdogo Tela, Vol. 47, No. 12, 2005, pp. 2182–2188.
Original Russian Text Copyright ? 2005 by Bazuev, Korolev. |
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