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Spin frustration and magnetic ordering in triangular lattice antiferromagnet Ca3CoNb2O9
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Dai Jia a), Zhou Ping a), Wang Peng-Shuai a), Pang Fei a), Munsie Tim J. b), Luke Graeme M. b),c), Zhang Jin-Shan d), Yu Wei-Qiang† a) |
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| (a) A schematic crystal structure for Ca3CoNb2O9. (b) Two inequivalent Co sites, Co(1) coordinated in blue octahedra environment and Co(2) located in red octahedra, forming the magnetic layers. Local parameters of Co(1)O6 and Co(2)O6 octahedra are also presented in an expanded view. (c) The triangular lattice of Co2+ parallel to the ab plane. Three exchange interactions are illustrated: J 1, J 2, and J 3. |
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