Quantum theory of the linear response of an Ising antiferromagnetic material to a high-frequency magnetic field
L. D. FilatovaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kovV. M. TsukernikPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar’kov
ABI
Abstract
The high-frequency properties of an antiferromagnetic material described by the Ising model when a weak constant magnetic field is applied perpendicular to the chosen inter-ion anitsotropy axis is investigated. It is shown that certain components of the high-frequency magnetic susceptibility tensor calculated by quantum mechanics differ considerably from the corresponding components obtained using the semiclassical theory.
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