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. Author manuscript; available in PMC: 2020 Oct 15.
Published in final edited form as: NPJ Quantum Mater. 2020;5(1):https://doi.org/10.1038/s41535-020-0222-8.

Fig. 2. Quantum ground states stabilized by modulations of the kagome lattice.

Fig. 2

Structural and magnetic characteristics are tabulated. The second to last row shows the magnetic interactions on the kagome planes of barlowite 1, barlowite 2, and Zn-substituted barlowite. The thickness of the line indicates bond strength as expressed through its Cu–O–Cu bond angle. In barlowite 2, the variation in angle of ±0.8° is quite small, so the differences in magnetic exchange are also likely small. In Zn0.56 and Zn0.95, the kagome motif consists only of equilateral triangles (green); however, in barlowite 2 the kagome motif is expanded due to a mix of equilateral (green) and distorted (red/blue) triangles. On the other hand, barlowite 1 is more distorted, containing only distorted triangles.