Static impurities in the S=3/2 kagome lattice

Details Static impurities in the S=3/2 kagome lattice Static impurities in the S=3/2 kagome lattice

2007-06-17

arxiv.org/abs/0706.2470v1

Phys. Rev. B 76, 144413 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 6 figures

Scientific paper

10.1103/PhysRevB.76.144413

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.

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