Article ID Journal Published Year Pages File Type
1798509 Journal of Magnetism and Magnetic Materials 2016 6 Pages PDF
Abstract
The phase transitions into flat and conical incommensurate magnetic structures are considered for a ferrimagnet with the dominant nonfrustrated exchange between the spins in one crystallographic position, competing exchanges between the spins in another position and frustrated exchange between the spins in different positions. The appearance conditions and the temperatures of the second order phase transitions are analytically obtained in the mean field approximation. The first order phase transition between these states is studied and the phase diagrams of temperature vs frustrated exchanges are calculated by the numerical minimization of free energy.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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