Magnetic and Resonance Properties of the Compound (NH3)2(CH2)3CoCl4 - an Antiferromagnet with the Dzyaloshinskii Interaction
A. S. Cherny, K. G. Dergachev, M. I. Kobets, E. N. Khatsko
Abstract
The static magnetic and dynamic properties of the compound (NH3)2(CH2)3CoCl4 are investigated in the temperature interval 0.5-50 K. It is shown that at TN =2.05 K this compound undergoes a transition to a magnetically ordered antiferromagnet state. A distinctive feature of this compound is the presence of temperature hysteresis at the transition to the ordered state (corresponding to a first order magnetic phase transition) and of a spontaneous magnetic moment along the x axis. The paramagnetic Curie temperatures are determined. The frequency-field curves of the AFMR spectrum in the xy plane are investigated at a temperature below TN. The main magnetic parameters of the biaxial AFM - the value of the low-frequency gap and the effective magnetic anisotropy field - are determined.
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