Journal
PHYSICAL REVIEW LETTERS
Volume 101, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.026405
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We report the determination of the Dzyaloshinsky-Moriya interaction, the dominant magnetic anisotropy term in the kagome spin-1/2 compound ZnCu3(OH)(6)Cl-2. Based on the analysis of the high-temperature electron spin resonance (ESR) spectra, we find its main component |D-z|=15(1) K to be perpendicular to the kagome planes. Through the temperature dependent ESR linewidth, we observe a building up of nearest-neighbor spin-spin correlations below similar to 150 K.
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