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Title: Magnetic correlations in paramagnetic iron
Authors: Samson, J.H.
Issue Date: 1989
Publisher: © Institute of Physics
Citation: SAMSON (1989), Magnetic correlations in paramagnetic iron. Journal of Physics: Condensed Matter, 1(37), pp 6717-6729
Abstract: A method is described for calculating the extent of short-range order (SRO) in the paramagnetic state of magnetic transition metals. An energy V is calculated for a set of configurations of the exchange field. An entropy S is attached to each configuration; this is the logarithm of the number of configurations with the same degree of long- and short-range magnetic order. The SRO is then found by minimizing the resulting free energy V-TS with respect to a near-neighbour correlation. The resulting Curie temperature Tc and the magnetic entropy are in good agreement with experiment. The corresponding nearest neighbour correlation is small (approximately cos 74°) at Tc.
Description: This article was published in the journal, Journal of Physics: Condensed Matter [© Intsitute of Physics] and is also available at: http://www.iop.org/EJ/journal/JPhysCM.
URI: https://dspace.lboro.ac.uk/2134/2232
ISSN: 0953-8984
Appears in Collections:Published Articles (Physics)

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