Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2008-04-18
Phys. Rev. Lett. 101, 026405 (2008)
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 3 figures, minor modifications
Scientific paper
10.1103/PhysRevLett.101.026405
We report the determination of the Dzyaloshinsky-Moriya interaction, the dominant magnetic anisotropy term in the \kagome spin-1/2 compound {\herbert}. 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 line-width we observe a building up of nearest-neighbor spin-spin correlations below $\sim$150 K.
Bert Fabrice
Brunel Louis Claude
de Vries Mark A.
Duc Fabienne
Harrison Albert A.
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