Dear all,
I have recently calculated the total magnetic moment of noncentrosymmetric compounds with WIEN2k. For one compounds, the value is 15.47 μB (which is found to be ferromagnetic in another paper) and -7.91 μB (which is found to be antiferromagnetic in the same paper). The net magnetic moment of antiferromagetic should be zero in the absence of applied magnetic field. Is the calculated result ok? If not what is the possible solutions of it. I have performed this calculations in many ways. But the result is same. Please explain the possible solutions! Thanks in advance!
It 's well known that in noncentrosymmetric compounds, Dzyaloshinskii-Moriya (ansitropic exchange) interaction (DMI) can arise. In magnetically ordered systems, it favors a spin canting of otherwise (anti)parallel aligned magnetic moments and thus, e.g., DMI can be a source of weak ferromagnetic behavior in an antiferromagnet.
Thank you (Sir) for your response. I know that the most prominent interaction is DM in noncentrosymmetric compounds. Since the total magnetic moment of an antiferromagnetic moment is zero, this does not mean that total spin magnetic moment is zero. Am I right? How can I explain the negative spin magnetic moment of an antiferromagnetic material?
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