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Magnetism in La2O3(Fe1-xMnx)2Se2 tuned by Fe/Mn ratio

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arxiv 1210.2711 v1 pith:MFASTX67 submitted 2012-10-09 cond-mat.str-el cond-mat.supr-con

Magnetism in La2O3(Fe1-xMnx)2Se2 tuned by Fe/Mn ratio

classification cond-mat.str-el cond-mat.supr-con
keywords magneticfe1-xmnxincreasedla2o3long-rangeorderalloysatomic
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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