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Spin dynamics and disorder effects in the S = 1/2 kagome Heisenberg spin liquid phase of kapellasite

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FIG. 1. (Color online) (a) The kagome magnetic pattern arises from the regular arrangement of Cu 2+ (S = 1 2 ) within a Cu/Zn triangular lattice (Cu in blue, Zn in yellow)
TABLE I. Cl sites occupancies evaluated by NMR lines integrals A i and compared to binomial probabilities assuming a random disorder for a kagome site filling ratio p = 0.75.
FIG. 4. (Color online) (a) 35 Cl NMR spectra of the central lines plotted versus the line shift from high (right) to low (left) temperature
FIG. 5. (Color online) Ratio of local susceptibilities χ 1 /χ 2 (black crosses) vs T
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