Morin temperature of annealed submicronic α-F2O3 particles

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ID: 110730
1987
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Abstract
The Morin temperature (${T}_{M}^{0}$) of annealed, monodispersed, nearly spherical particles having diameters (d) between (0.07--0.62) \ensuremath{\mu}m have been investigated. A plot of ${T}_{M}^{0}$ versus 1/d is linear. The extrapolation of this plot between 230 and 262 K to d=\ensuremath{\infty} gives ${T}_{M}^{0}$=264\ifmmode\pm\else\textpm\fi{}2 K, the Morin temperature of the bulk \ensuremath{\alpha}-${\mathrm{Fe}}_{2}$${\mathrm{O}}_{3}$. Furthermore, ${T}_{M}^{0}$=0 implies d=83\ifmmode\pm\else\textpm\fi{}5 A\r{}, which is the size limit for the onset of superparamagnetism in this system.
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amin1987physicalmorin Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors N. Amin;Sigurds Arajs;
Journal physical review b
Year 1987
DOI
doi:10.1103/PhysRevB.35.4810
URL
https://doi.org/10.1103%2FPhysRevB.35.4810
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