Publications by authors named "L A Demianets"
Magnetization, specific heat, and neutron diffraction measurements are used to map out the entire magnetic phase diagram of KFe(MoO4)2. This stacked triangular antiferromagnet is structurally similar to the famous multiferroic system RbFe(MoO4)2. Because of an additional small crystallographic distortion, it contains two sets of inequivalent distorted magnetic triangular lattices.
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- The first observation of a direct transition from a paramagnetic and paraelectric state to an incommensurate multiferroic phase in RbFe(MoO4)(2) is reported.
- Ferroelectricity occurs when the magnetic structure exhibits chirality, resulting in the breaking of inversion symmetry.
- A Landau expansion analysis shows that chiral magnetic order can induce a pseudoelectric field, with its temperature response aligning with experimental findings.