Pressure-Induced Octahedral Rotation in RbMn[Fe(CN)<SUB>6</SUB>]

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Pressure-Induced Octahedral Rotation in RbMn[Fe(CN)₆]

XiaoJun Liu, Yutaka Moritomo, Tomoyuki Matsuda, Hayato Kamioka, Hiroko Tokoro, Shin-ichi Ohkoshi

著者情報

キーワード: octahedral rotation, high-pressure Raman spectroscopy, Prussian blue structure

ジャーナル認証あり

2009 年 78 巻 1 号 p. 013602

DOI https://doi.org/10.1143/jpsj.78.013602

詳細

抄録

Hydrostatic pressure effect on Prussian blue type network in RbMn[Fe(CN)₆] has been investigated by high-pressure vibrational spectroscopy. Frequencies of the CN stretching modes increase as pressure increases: dhω⁄dP=6.4 cm⁻¹/GPa for A_1g mode and 4.3 cm⁻¹/GPa for E_g mode. With further increase of pressure beyond ≈2 GPa, slope of the hω–P curve becomes fairly gradual. We ascribed the behavior to the in-plane rotation of FeC₆/MnN₆ octahedra, since it compensates the pressure-induced contraction in volume.

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© The Physical Society of Japan 2009

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