Magnetic Phase Transition in the Low Dimensional Compound BaMn2Si2O7

Abstract

The structural and magnetic properties of BaMn2Si2O7 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 Mn2+ chain carrying S=5/2 is present at high temperatures, which is similar to the other quasi-one-dimensional barium silicates, BaM2Si2O7 (M: Cu and Co). The Neel temperature (TN=26 K) is high compared to the magnetic interaction along the chain (J = -6 K). The neutron powder diffraction study has revealed that the magnetic structure is long-ranged with antiferromagnetic arrangement along the chain (c) direction and ferromagnetic arrangement along the a and b axes. The detailed structural analysis suggests that the interchain interaction via Mn-O-Mn bond along the a axis is relatively large, which makes the system behave more two-dimensionally in the ac plane and enhances TN.

8 pages, 5 figures

References in corpus (1)

• Multiple spin-flop phase diagram of BaCu2Si2O7

Cited by in corpus (8)

• Spin-split collinear antiferromagnets: a large-scale ab-initio study
• Magnetic transitions in the spin S=5/2 frustrated magnet BiMn2PO6 and strong lattice softening in BiMn2PO6 and BiZn2PO6 below 200 K
• Structural and magnetic characterization of the one-dimensional S = 5/2 antiferromagnetic chain system SrMn(VO4)(OH)
• Incommensurate antiferromagnetic order in the manifoldly-frustrated SrTb${}_2$O${}_4$ with transition temperature up to 4.28 K
• Cluster mean field study of the Heisenberg model for CuInVO${}_5$
• Near room temperature antiferromagnetic ordering with a potential low dimensional magnetism in AlMn${}_2$B${}_2$
• Magnetic Properties of the low dimensional BaM${}_2$Si${}_2$O${}_7$(M= Cu, Co, Mn) system
• Incommensurate-commensurate magnetic phase transition in the double tungstate Li2Co(WO4)2