Antiferromagnetism with alternating strong and weak coupling
1973
Some magnetic materials exhibit such a geometric structure that at least two different and finite coupling parameters are needed for long range order to be possible. The sublattice magnetizations and parallel susceptibilities of such a system are here considered with a special view to cases where one of the coupling parameters is much stronger than the other. The simple molecular field approximation is found to be invalid, even qualitatively, for such a case.
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