Heterogeneous spin state in the field-induced phase of volborthite as seen via 51V nuclear magnetic resonance

Abstract

We report results of 51V NMR in the field-induced phase of volborthite Cu3V2O7(OH)dot2H2O, a spin-1/2 antiferromagnet on a distorted kagome lattice. In magnetic fields above 4.5 T, two types of V sites with different spin-echo decay rates are observed. The hyperfine field at the fast decaying sites has a distribution, while it is more homogeneous at the slowly decaying sites. Our results indicate a heterogeneous state consisting of two spatially alternating Cu spin systems, one of which exhibits anomalous spin fluctuations contrasting with the other showing a conventional static order.

5 pages, 4 figures

References in corpus (8)

• Properties of an algebraic spin liquid on the kagome lattice
• Ground State of the Kagome Lattice Heisenberg Antiferromagnet
• Quantum phase transition induced by Dzyaloshinskii-Moriya in the kagome antiferromagnet
• Twelve sublattice ordered phase in the J1-J2 model on the kagome lattice
• Spatially Anisotropic Heisenberg Kagome Antiferromagnet
• Quantum and Classical Spins on the Spatially Distorted Kagome Lattice: Applications to Volborthite
• Coupled frustrated quantum spin-1/2 chains with orbital order in volborthite Cu3V2O7(OH)2(H2O)2
• Ordered Phases of the Anisotropic Kagome Lattice Antiferromagnet in a Field

Cited by in corpus (13)

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• Magnetic Order in the Spin-1/2 Kagome Antiferromagnet Vesignieite
• Spin dynamics in the high-field phases of volborthite
• Heterogeneous freezing in a geometrically frustrated spin model without disorder: spontaneous generation of two time-scales
• Spin-1/2 Heisenberg antiferromagnet on an anisotropic kagome lattice
• Kagome-Triangular Lattice Antiferromagnet NaBa2Mn3F11
• High-field Phase Diagram and Spin Structure of Volborthite Cu3V2O7(OH)2/2H2O
• Inhomogeneous magnetism in the doped kagome lattice of LaCuO2.66
• Spatially anisotropic kagome antiferromagnet with Dzyaloshinskii-Moriya interaction
• Effects of Dzyaloshinskii-Moriya interactions in volborthite: Magnetic orders and thermal Hall effect
• Collapse of susceptibility and non-trivial spin dynamics in the hyper-honeycomb magnet $\beta$-Li${}_2$IrO${}_3$ under high pressure