Static impurities in the S=3/2 kagome lattice

Abstract

We consider the effects of doping the S=3/2 kagome lattice with static, nonmagnetic impurities. By exact diagonalization calculations on small clusters we deduce the local spin correlations and magnetization distribution around a vacancy. As in the S=1/2 kagome lattice, in the vicinity of the impurity we find an extended region where the spin correlations are altered as a consequence of frustation relief, and no indications for the formation of local moments. We discuss the implications of our results for local probe measurements on S=3/2 kagome materials.

6 pages, 6 figures

References in corpus (18)

• Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
• First excitations of the spin 1/2 Heisenberg antiferromagnet on the kagomé lattice
• Order versus Disorder in the Quantum Heisenberg Antiferromagnet on the Kagom{é} lattice: an approach through exact spectra analysis
• Low-energy sector of the S=1/2 Kagome antiferromagnet
• Spin waves in the Frustrated Kagome Lattice Antiferromagnet KFe3(OH)6(SO4)2
• RVB description of the low-energy singlets of the spin 1/2 kagome antiferromagnet
• Less than 50% sublattice polarization in an insulating S=3/2 kagome' antiferromagnet at low T
• The Kagome Antiferromagnet with Defects: Satisfaction, Frustration, and Spin Folding in a Random Spin System
• Susceptibility and dilution effects of the kagome bi-layer geometrically frustrated network. A Ga-NMR study of SrCr_(9p)Ga_(12-9p)O_(19)
• Static impurities in the kagome lattice: dimer freezing and mutual repulsion
• Ga NMR study of the local susceptibility in SrCr8Ga4O19: pseudogap and paramagnetic defects
• Uniform and staggered magnetizations induced by Dzyaloshinskii-Moriya interactions in isolated and coupled spin 1/2 dimers in a magnetic field
• $\mu$SR study of the quantum dynamics in the frustrated $S=3/2$ kagome bilayers
• Field-Induced Effects of Anisotropic Magnetic Interactions in SrCu2(BO3)2
• Intrinsic susceptibility and bond defects in the novel 2D frustrated antiferromagnet Ba${}_2$Sn${}_2$ZnCr${}_{7p}$Ga${}_{10-7p}$O${}_{22}$
• Correlations, spin dynamics, defects: the highly-frustrated Kagomé bilayer
• Effective Hamiltonians and dilution effects in kagome and related antiferromagnets
• Field Induced Staggered Magnetization and Magnetic Ordering in $C{u}_2(C_5{H}_{12}{N}_2{)}_{2}C{l}_4$

Cited by in corpus (7)

• Magnetic Pyrochlore Oxides
• Gapless spin-liquid ground state in the $S=1/2$ kagome antiferromagnet
• Quantum Magnetism in Minerals
• Dzyaloshinskii-Moriya anisotropy and non-magnetic impurities in the $s=1/2$ kagome system ZnCu_3(OH)_6Cl_2
• Trimerized ground state of the spin-1 Heisenberg antiferromagnet on the kagome lattice
• Quantum half-orphans in kagome antiferromagnets
• Strong relevance of Zinc impurity in the spin-$\frac{1}{2}$ Kagome quantum antiferromagnets: a variational study