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Journal Articles

Structural phase transition in cobalt oxyfluoride Co$$_{3}$$Sb$$_{4}$$O$$_{6}$$F$$_{6}$$ observed by high-resolution synchrotron and neutron diffraction

Shimono, Seiya*; Ishibashi, Hiroki*; Nagayoshi, Yusuke*; Ikeno, Hidekazu*; Kawaguchi, Shogo*; Hagihara, Masato; Torii, Shuki*; Kamiyama, Takashi*; Ichihashi, Katsuya*; Nishihara, Sadafumi*; et al.

Journal of Physics and Chemistry of Solids, 163, p.110568_1 - 110568_7, 2022/04

https://doi.org/10.1016/j.jpcs.2021.110568
 Times Cited Count：1 Percentile：15.7(Chemistry, Multidisciplinary)

Journal Articles

Microstructures related to the ferroelectric properties in BiFeO$$_{3}$$-BaTiO$$_{3}$$

Kitagawa, Shuji*; Horibe, Yoichi*; Yoshii, Kenji; Suzuki, Muneyasu*; Noguchi, Yuji*; Nishihara, Sadafumi*; Hosokoshi, Yuko*; Mori, Shigeo*

Transactions of the Materials Research Society of Japan, 33(1), p.27 - 30, 2008/03

Microstructures related to the ferroelectric (FE) properties in(1-x)BiFeO$$_{3}$$-xBaTiO$$_{3}$$ were examined mainly by a transmission electron microscopy, in combination with conventional magnetic and dielectric measurements. It was found that macroscopic-sized FE domain structures in BiFeO$$_{3}$$changed into fine FE microstructures with the 20-30nm size in the x=0.25compound, as the BaTiO$$_{3}$$ concentration (x) was increased. In addition, we found characteristic tweed-like contrast due to the strain field in the x=0.33 compound at room temperature. We carefully investigated the spatial distribution of the FE microdomains in the x=0.25 compound by obtaining real-space images and determined spatial configuration of the spontaneous polarization in each FE microdomains.

Oral presentation

Relationship between local structure and magnetic/dielectric properties in (1-${it x}$)BiFeO$$_{3}$$-${it x}$BaTiO$$_{3}$$

Ozaki, Tomoatsu*; Nishihara, Sadafumi*; Hosokoshi, Yuko*; Tokunaga, Masashi*; Noguchi, Yuji*; Miyayama, Masaru*; Yoshii, Kenji; Mori, Shigeo*

no journal, , 

We have investigated the local structure and physical properties of (1-${it x}$)BiFeO$$_{3}$$-${it x}$BaTiO$$_{3}$$. Electron-diffraction measurements showed the coexistence of magnetic and ferroelectric nano domains at around x=0.35. Dielectric measurements under magnetic field showed the lack of magneto-dielectric effect, indicating a weak correlation between the magnetic and ferroelectric properties. Magnetization-magnetic field curves showed the existence of magnetic nano domains.

Oral presentation

Chiral helical magnetism in inorganic chiral magnetic compound CsCuCl$${}_{3}$$

Koyama, Tomomi*; Kosaka, Yusuke*; Akimitsu, Jun*; Inoue, Katsuya*; Nishihara, Sadafumi*; Maryunina, K.*; Oishi, Kazuki*; Suzuki, Junichi*; Kakurai, Kazuhisa; Hutanu, V.*; et al.

no journal, , 

no abstracts in English

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