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

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.

arXiv comment7 pages, 7 figures

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Cited by in corpus (6)

• Structure and physical properties of new layered iron oxychalcogenide BaFe2OSe2
• The magnetic and electronic properties of Oxyselenides - influence of transition metal ions and lanthanides
• Magnetic order and spin dynamics in La2O2Fe2OSe2 probed by 57Fe-Moessbauer, 139La-NMR, and muon spin relaxation spectroscopy
• Magnetic and Structural Properties of the Iron Oxychalcogenides La${}_2$O${}_2$Fe${}_2$O$M_2$ ($M$= S, Se)
• Phonon and magnetic dimer excitations in Fe-based S=2 spin ladder compound BaFe${}_2$Se${}_2$O
• Strong charge and spin fluctuations in La${}_2$O${}_3$Fe${}_2$Se${}_2$