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26 April 2024

» arxiv » 1101.5457

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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 ;
Date:	28 Jan 2011
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.
Source:	arXiv, 1101.5457
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