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Site preference and magnetic structure of M-type BaTiMnFe$$_{10}$$O$$_{19}$$ ferrite determined by X-ray and neutron diffraction methods

Takayasu, Shunichi*; Yoshizaki, Jumpei*; Okube, Maki*; Toyoda, Takeshi*; Igawa, Naoki   ; Sasaki, Satoshi*

Site preferences of Ti and Mn and the magnetic structure of M-type BaTiMnFe$$_{10}$$O$$_{19}$$ ferrite were analyzed using the X rays and neutron powder diffraction method. The intensity difference on the magnetic scattering was clearly observed below and above the ${it T}$c, showing the ferrimagnetic spin arrangement along with the ${it c}$ axis. Site-occupancy refinements give the results that Ti ions occupy the 4${it f}$1 (24%), 2${it a}$ (15%) and 2${it b}$ (15%) sites, while Mn ions prefer to 4${it f}$2 (24%) and 12${it k}$ (24%). Magnetic moments were obtained from the Rietveld refinements, which are 3.56, 3.37, -3.86, -3.72 and 3.68 $$mu$$$$_{B}$$ at ${it T}$ = 8 K for 2${it a}$, 2${it b}$, 4${it f}$1, 4${it f}$2 and 12${it k}$ sites, respectively.

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English

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12th Conference of the Asian Crystallographic Association (AsCA 2013)

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2013/12

Location (city)

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Hong Kong

Location (country)

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China

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no keyword

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JRR-3M(研究炉3)  

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