Tuning the spin dynamics of kagome systems

Abstract

Despite the conceptional importance of realizing spin liquids in solid states only few compounds are known. On the other side the effect of lattice distortions and anisotropies on the magnetic exchange topology and the fluctuation spectrum are an interesting problem. We compare the excitation spectra of the two s=1/2 kagome lattice compounds volborthite and vesignieite using Raman scattering. We demonstrate that even small modifications of the crystal structure may have a huge effect on the phonon spectrum and low temperature properties.

3 pages, 2 figures

References in corpus (13)

• Spin Liquid Ground State of the $S=1/2$ Kagome Heisenberg Model
• Projected wavefunction study of Spin-1/2 Heisenberg model on the Kagome lattice
• 17O NMR study of the intrinsic magnetic susceptibility and spin dynamics of the quantum kagome antiferromagnet ZnCu3(OH)6Cl2
• Ground State of the Kagome Lattice Heisenberg Antiferromagnet
• Vesignieite BaCu3V2O8(OH)2 as a Candidate Spin-1/2 Kagome Antiferromagnet
• Quantum phase transition induced by Dzyaloshinskii-Moriya in the kagome antiferromagnet
• The magnetic groundstate of an experimental $S=1/2$ kagomé antiferromagnet
• Projected wave function study of Z2 spin liquids on the kagome lattice for the spin-1/2 quantum Heisenberg antiferromagnet
• Spin Liquid Ground State in the Frustrated Kagome Antiferromagnet MgCu3(OH)6Cl2
• Ground State and Intrinsic Susceptibility of the Kagome Antiferromagnet Vesignieite as seen by 51V NMR
• Spin dynamics in the S =1/2 kagome compound vesignieite, Cu3Ba(VO5H)2
• How to detect weak emergent broken-symmetries of the Kagome antiferromagnet from Raman spectroscopy
• Spatially anisotropic Heisenberg Kagome antiferromagnet

Cited by in corpus (4)

• Theory of Raman response in three-dimensional Kitaev spin liquids: application to $\beta -$ and $\gamma -$Li${}_2$IrO${}_3$ compounds
• Spin-1/2 Heisenberg antiferromagnet on an anisotropic kagome lattice
• Raman scattering in correlated thin films as a probe of chargeless surface states
• Effects of exchange distortions in the magnetic Kagome lattice