Dzyaloshinsky-Moriya anisotropy in the spin-1/2 kagome compound ZnCu3(OH)6Cl2.
We report the determination of the Dzyaloshinsky-Moriya interaction, the dominant magnetic anisotropy term in the kagome spin-1/2 compound ZnCu3(OH)6Cl2. Based on the analysis of the high-temperature electron spin resonance (ESR) spectra, we find its main component |Dz|=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 approximately 150 K.
Zorko
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A
Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris-Sud 11, 91405 Orsay, France.
Nellutla
S
S
van Tol
J
J
Brunel
L C
LC
Bert
F
F
Duc
F
F
Trombe
J-C
JC
de Vries
M A
MA
Harrison
A
A
Mendels
P
P