FeTAC, a chainlike metamagnet
- 15 April 1985
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 57 (8) , 3343-3345
- https://doi.org/10.1063/1.335090
Abstract
Single crystal susceptibility, magnetization and powder Mössbauer spectroscopy measurements are reported for [(CH3)3NH]FeCl3 ⋅ 2H2O, FeTAC. Powder x‐ray studies show this compound to be isomorphous to previously studied one‐dimensional compounds. The low‐temperature susceptibilities are highly anisotropic with the greatest susceptibility along the chain (b) axis. Antiferromagnetic ordering is observed in both the susceptibility data and the Mössbauer spectra near 3.2 K. Metamagnetic transitions occur when small fields (less than 200 Oe) are applied parallel to the b axis. The data are interpreted in terms of a model of antiferromagnetic Ising‐like chains aligned along the a axis while canted towards b. Results of a molecular field model for weakly coupled Ising chains are also presented.This publication has 11 references indexed in Scilit:
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