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arXiv · 1101.5457

Sr3Co2O6: a possible frustrated spin-chain material

X. X. Wang·J. J. Li·Y. G. Shi·Y. Tsujimoto·Y. F. Guo·S. B. Zhang·Y. Matsushita·M. Tanaka·Y. Katsuya·K. Kobayashi·K. Yamaura·E. Takayama-Muromachi
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Abstract

A dense phase of a post-layered perovskite Sr3Co2O6 was created by a high-pressure and high-temperature synthetic route and quenched to ambient conditions. The structure of Sr3Co2O6 was determined by synchrotron X-ray powder diffraction. Sr3Co2O6 crystallizes in the K4CdCl6-type structure (an infinite chain-type structure), which is 6% denser than the known, iso-compositional layered perovskite Sr3Co2O7-d (d~1). The K4CdCl6-type Sr3Co2O6 shows complex magnetic behavior reflecting the spin-chain nature as well as the analogue oxides Ca3Co2O6 and Ca3CoRhO6, whose microscopic magnetic origin is still highly debated.

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X. X. Wang, J. J. Li, Y. G. Shi, Y. Tsujimoto, Y. F. Guo, S. B. Zhang, Y. Matsushita, M. Tanaka, Y. Katsuya, K. Kobayashi, K. Yamaura, E. Takayama-Muromachi. 2011-01-28. Sr3Co2O6: a possible frustrated spin-chain material. https://arxiv.org/abs/1101.5457

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