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Figure 1

From: Large spontaneous exchange bias in a weak ferromagnet Pb6Ni9(TeO6)5

Figure 1

(a) Rietveld refinement on the XRD of the powder samples. (b) Crystal structure of Pb6Ni9(TeO6)5. (c) The distorted NiO6 (4f, 6h, and 2b) and TeO6 (4f and 6h) octahedral environments in the structure. (d), (e) and (f) show the honeycomb-like layer in ab-plane filled with Ni2+ ions. The layer is formed by four Ni2+ ions (Ni1, Ni2, Ni3, and Ni4) and these ions are interacted with each other through O2− ions.

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