Magnetism in La2O3(Fe1-xMnx)2Se2 tuned by Fe/Mn ratio
Hechang Lei, Emil S. Bozin, A. Llobet, V. Ivanovski, V. Koteski, J., Belosevic Cavor, B. Cekic, and C. Petrovic
TL;DR
This study investigates how varying Fe/Mn ratios in La2O3(Fe1-xMnx)2Se2 affects its structural and magnetic properties, revealing increased ferromagnetism, magnetic frustration, and complex phase behavior.
Contribution
It provides new insights into the magnetic phase diagram and disorder effects in La2O3(Fe1-xMnx)2Se2 with different Fe/Mn ratios.
Findings
Increased ferromagnetic component with Mn doping
Suppression of long-range order temperature due to atomic disorder
Presence of a rich magnetic phase diagram in intermediate alloys
Abstract
We report the evolution of structural and magnetic properties in La2O3(Fe1-xMnx)2Se2. Heat capacity and bulk magnetization indicate an increased ferromagnetic component of the long-range magnetic order and possible increased degree of frustration. Atomic disorder on Fe(Mn) sites suppresses the temperature of the long-range order whereas intermediate alloys show a rich magnetic phase diagram.
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