Magnetic resonance studies of the metalorganic antiferromagnet are carried out over a wide range of frequencies (25–) and temperatures (1.8–). The data on the temperature dependence of the magnetic susceptibility attest to a low-dimensional magnetic structure of this crystal. The results of resonance studies at a temperature of are used to construct the frequency–field diagram of the antiferromagnetic resonance spectrum of this compound; it is described by the model of a biaxial rhombic antiferromagnet with the following parameters: , , , , , . Two-magnon and nonresonance three-magnon absorption is observed, and the weakest interchain exchange interaction is estimated as .
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© 2006 American Institute of Physics.
2006
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