High-Field ESR Measurements of S=1/2 Kagome Lattice Antiferromagnet BaCu${}_3$V${}_2$O${}_8$(OH)${}_2$

Abstract

High-field electron spin resonance (ESR) measurements have been performed on vesignieite BaCu${}_3$V${}_2$O${}_8$(OH)${}_2$, which is considered as a nearly ideal model substance of $S$=1/2 kagome antiferromagnet, in the temperature region from 1.9 to 265 K. The frequency region is from 60 to 360 GHz and the applied pulsed magnetic field is up to 16 T. Observed g-value and linewidth show the increase below 20 K, which suggest the development of the short range order. Moreover, a gapless spin liquid ground state is suggested from the frequency-field relation at 1.9 K.

5 pages, 6 figures, jpsj2 class file, to be published in J. Phys. Soc. Jpn

References in corpus (6)

• Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
• Quantum magnetism in the paratacamite family: towards an ideal kagome lattice
• 17O NMR study of the intrinsic magnetic susceptibility and spin dynamics of the quantum kagome antiferromagnet ZnCu3(OH)6Cl2
• Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet
• Quantum phase transition induced by Dzyaloshinskii-Moriya in the kagome antiferromagnet
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• Ground State and Intrinsic Susceptibility of the Kagome Antiferromagnet Vesignieite as seen by 51V NMR
• Magnetic Order in the Spin-1/2 Kagome Antiferromagnet Vesignieite
• Spin dynamics in the S =1/2 kagome compound vesignieite, Cu3Ba(VO5H)2
• Vesignieite: a $S=\frac{1}{2}$ kagome antiferromagnet with dominant third-neighbor exchange
• Z2-vortex order of frustrated Heisenberg antiferromagnets in two dimensions
• Magnetic Properties of the Spin-1/2 Deformed Kagome Antiferromagnet Edwardsite
• Distorted Kagome Lattice Generated by a Unique Orbital Arrangement in the Copper Mineral KCu3As2O7(OH)3
• Dzyaloshinsky-Moriya interaction and the ground state in S=3/2 perfect kagome lattice antiferromagnet $\mathbf{KC}{\mathbf{r}}_3(\mathbf{OH}{)}_6(\mathbf{S}{\mathbf{O}}_4{)}_2$ (Cr-jarosite) studied by X-band and high-frequency ESR
• Two-stage evolution of magnetic correlations in spiral spin liquid material, Ca${}_{10}$Cr${}_7$O${}_{28}$