Magnetic Order in the Spin-1/2 Kagome Antiferromagnet Vesignieite

Abstract

We report results of magnetic susceptibility and 51V- and 63,65Cu-NMR measurements on a high-quality powder sample of vesignieite BaCu3V2O8(OH)2, a candidate for the spin-1/2 kagome antiferromagnet. We observed a twostep magnetic transition: the appearance of spatially inhomogeneous static moments below 13 K and a long-range order below 9 K. The NMR data indicate a Q = 0 magnetic structure at 1.4 K with the in-plane spin components of three sublattices oriented at nearly 120 degrees to each other and the magnitude of the ordered moments of at least 0.6 muB

5 pages, 5 figures

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• Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
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• Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet
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• Spin dynamics in the S =1/2 kagome compound vesignieite, Cu3Ba(VO5H)2
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• High-field Phase Diagram and Spin Structure of Volborthite Cu3V2O7(OH)2/2H2O
• Heterogeneous spin state in the field-induced phase of volborthite as seen via 51V nuclear magnetic resonance

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• Quantum Magnetism in Minerals
• Dzyaloshinsky-Moriya interaction in vesignieite: A route to freezing in a quantum kagome antiferromagnet
• Weak ferromagnetic order breaking the threefold rotational symmetry of the underlying kagomé lattice in CdCu${}_3$(OH)${}_6$(NO${}_3$)${}_2\cdot$H${}_2$O
• Frozen State and Spin Liquid Physics in Na4Ir3O8: an NMR study
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• Topological Magnetic Excitations on the Distorted Kagome Antiferromagnets: Applications to Volborthite, Vesignieite, and Edwardsite
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• Magnetic Properties of the Spin-1/2 Deformed Kagome Antiferromagnet Edwardsite
• Magnetic ordering of the distorted kagome antiferromagnet Y${}_3$Cu${}_9$(OH)${}_{18}$[Cl${}_8$(OH)] prepared via optimal synthesis
• Canted Antiferromagnetic Order in the Kagome Material Sr-Vesignieite
• Resonant inelastic x-ray scattering study of vector chiral ordered kagome antiferromagnet
• Short-range order and hidden energy scale in geometrically frustrated magnets
• Tuning of magnetic frustration in $S=1/2$ Kagomé lattices {[Cu${}_3$(CO${}_3$)${}_2$$(bpe{)}_3$](ClO${}_4$)${}_2$}${}_n$ and {[Cu${}_3$(CO${}_3$)${}_2$$(bpy{)}_3$](ClO${}_4$)${}_2$}${}_n$ through rigid and flexible ligands
• Crystal chemistry criteria of the existence of spin liquids on the kagome lattice