THEORY OF HELICOIDAL STRUCTURES IN ANTIFERROMAGNETS. I. NONMETALS
THEORY OF HELICOIDAL STRUCTURES IN ANTIFERROMAGNETS. I. NONMETALS
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2013
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在朗道第二类相变理论的基础上，提出了非金属反铁磁子的磁性超结构理论，其中以螺旋结构为特例。大的上层结构周期可以通过假设结构是由相对论性自旋-晶格或自旋-自旋力或交换相互作用中的尖锐各向异性产生来解释。
A theory of magnetic superstructures in nonmetallic antiferromagn~ts, a particular case of which are the so-called helicoidal structures, is developed on the basis of the Landau theory of phase transitions of the second kind. The large superstructure period can be explained either by assuming that the structure is created by relativistic spin-lattice or spin-spin forces or by a sharp anisotropy in the exchange interaction.