Crystal and Magnetic Structures of Ba $_{3}$ Co $_{1-x}$ Ca $_{x}$ Ru $_{2}$ O $_{9}$

Horie, Akihiro*; Yasui, Yukio*; Igarashi, Taichi*; Yamamoto, Takafumi*; Misaswa, Kazuki*; Terasaki, Ichiro*; Matsukawa, Takeshi*; Hoshikawa, Akinori*; Ishigaki, Toru*; Igawa, Naoki

The crystal and magnetic structures of Ba $_{3}$ Co $_{1-x}$ Ca $_{x}$ Ru $_{2}$ O $_{9}$ has been studied by using the neutron powder diffraction. We also carried out the measurements of magnetic properties of this sample. $T_mathrm{N}$ is decreased with increasing the fraction of Ca ion, and we found that $T_mathrm{N}$ is 76 K at the fraction of Ca = 0.3. although the lattice constants of the sample are increased by the substituting Ca for Co ion, a Ru-Ru bond length decreases with increasing fraction of Ca ion. In this presentation, the details of the magnetic properties and magnetic structure of this material will be discussed.

Language	:	Japanese
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Meeting title	:	日本中性子科学会第17回年会(JSNS 2017)
Held date	:	2017/12
Location (city)	:	福岡
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	J-PARC物質・生命科学実験施設
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Registration No. : BB20171417
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Crystal and Magnetic Structures of BaCoCaRuO

Crystal and Magnetic Structures of Ba $_{3}$ Co $_{1-x}$ Ca $_{x}$ Ru $_{2}$ O $_{9}$