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Magnetic Interactions in α‐MnSO 4 and β‐MnSeO 4
Author(s) -
Wegener W.,
Vanderhaeghen J.,
Scheerlinck D.,
Hautecler S.,
Legrand E.,
Will G.
Publication year - 1979
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220930218
Subject(s) - manganese , paramagnetism , energy (signal processing) , moment (physics) , function (biology) , neutron , physics , magnetic moment , chemistry , analytical chemistry (journal) , atomic physics , condensed matter physics , nuclear physics , quantum mechanics , environmental chemistry , organic chemistry , evolutionary biology , biology
The energy distributions of neutrons scattered by α‐MnSO 4 and β‐MnSeO 4 in their paramagnetic state are measured by means of a time‐of‐flight technique. From a simultaneous analysis of the second moment of these energy distributions and of the Néel temperature computed in the Green's function approximation it is concluded that the exchange interactions between fourth neighbours play an important role in these manganese compounds. Values for J 1 and J 4 are obtained from which reasonable values for Θ and χ( T N ) are predicted in the case of α‐MnSO 4 .