Abstract
The structural and magnetic properties of BaMnSiO have been investigated. The magnetic susceptibility and specific heat, measured using single crystals, suggest that the quasi-one-dimensional magnetism originating from the loosely coupled Mn chain carrying is present at high temperatures, which is similar to the other quasi-one-dimensional barium silicates, BaSiO (: Cu and Co). The Néel temperature ( K) is high compared to the magnetic interaction along the chain ( K). Neutron powder diffraction study has revealed that the magnetic structure is long ranged with antiferromagnetic arrangement along the chain () direction and ferromagnetic arrangement along the and axes. Detailed structural analysis suggests that the interchain interaction via Mn-O-Mn bond along the axis is relatively large, which makes the system behave more two-dimensionally in the plane and enhances .
- Received 18 July 2013
DOI:https://doi.org/10.1103/PhysRevB.88.144405
©2013 American Physical Society