Abstract
Pressure-induced transformations in the structural and magnetic properties of ${\mathrm{CsMnF}}_{4}$ are reported. This behavior is analyzed in the framework of magnetostructural correlations within the layered perovskite A${\mathrm{MnF}}_{4}$ (A=Cs,Rb,K) series by using magnetic susceptibility and synchrotron x-ray powder-diffraction techniques as a function of temperature and hydrostatic pressure.
Highlights
Pressure-induced transformations in the structural and magnetic properties of CsMnF4 are reported. This behavior is analyzed in the framework of magnetostructural correlations within the layered perovskite AMnF4 (A =Cs, Rb, K) series by using magnetic susceptibility and synchrotron x-ray powder-diffraction techniques as a function of temperature and hydrostatic pressure
This work is part of a research program aimed at studying the magnetostructural correlations within the family of layered Mn + compounds AMnF4 (A=Cs, Rb, K). ' While the Cs derivative is a model example of a layer ferromagnet that orders at T, =18.9 K, the Rb and K derivatives order as antiferromagnets at, respectively, 3.7 and 5.2 K
As the size of the alkaline ion decreases, the layers get closer and electrostatic forces tend to rotate the [MnFzF4/z] octahedra within the layers. This results in a decrease of n, a dramatic change in the magnetic properties and a reduction of the crystal symmetry of these systems
Summary
Pressure-induced transformations in the structural and magnetic properties of CsMnF4 are reported. Structural and magnetic behavior of the S=2 layered ferromagnet CsMnF4 under hydrostatic pressure This behavior is analyzed in the framework of magnetostructural correlations within the layered perovskite AMnF4 (A =Cs, Rb, K) series by using magnetic susceptibility and synchrotron x-ray powder-diffraction techniques as a function of temperature and hydrostatic pressure.
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