Magnetic scattering maps for the geometrically frustrated magnet YBaCo₄O₇. Dashed blue lines show the Brillouin zones of the crystal and solid blue lines show the reciprocal lattice.

From the article:

Magnetic Correlations in the Extended Kagome ${\mathrm{YBaCo}}_4{\mathbf{O}}_7$ Probed by Single-Crystal Neutron Scattering
P. Manuel, L. C. Chapon, P. G. Radaelli, H. Zheng, and J. F. Mitchell
Phys. Rev. Lett. 103, 037202 (2009)

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