Morin temperature of annealed submicronic α-F2O3 particles
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1970
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Abstract
The Morin temperature (T0M) of annealed, monodispersed, nearly spherical particles having diameters (d) between (0.07-0.62) μm have been investigated. A plot of T0M versus 1/d is linear. The extrapolation of this plot between 230 and 262 K to d=â gives T0M=264+/-2 K, the Morin temperature of the bulk α-Fe2O3. Furthermore, T0M=0 implies d=83+/-5 Å, which is the size limit for the onset of superparamagnetism in this system.
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n.1970phrvbmorin
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| Authors | Amin, N.;Arajs, Sigurds;Amin, N.;Arajs, Sigurds; |
| Journal | phrvb |
| Year | 1970 |
| DOI |
doi:10.1103/PhysRevB.35.4810
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