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

Sr3Co2O6: a possible frustrated spin-chain material

Strongly Correlated Electrons 2011-01-31 v1 Superconductivity

Authors: 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.

Keywords

perovskite magnetism frustrated magnetism

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@article{arxiv.1101.5457,
  title  = {Sr3Co2O6: a possible frustrated spin-chain material},
  author = {X. X. Wang and J. J. Li and Y. G. Shi and Y. Tsujimoto and Y. F. Guo and S. B. Zhang and Y. Matsushita and M. Tanaka and Y. Katsuya and K. Kobayashi and K. Yamaura and E. Takayama-Muromachi},
  journal= {arXiv preprint arXiv:1101.5457},
  year   = {2011}
}

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accepted for publication in PRB as a rapid communication

Sr3Co2O6: a possible frustrated spin-chain material

Abstract

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