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Journal Articles

Magnetically induced electric polarization in Ba$$_{3}$$Fe$$_{2}$$O$$_{5}$$Cl$$_{2}$$ with tunable direction in three dimensions

Abe, Nobuyuki*; Shiozawa, Shunsuke*; Matsuura, Keisuke*; Sagayama, Hajime*; Nakao, Akiko*; Ohara, Takashi; Tokunaga, Yusuke*; Arima, Takahisa*

Physical Review B, 101(18), p.180407_1 - 180407_5, 2020/05

 Times Cited Count:0 Percentile:100(Materials Science, Multidisciplinary)

Journal Articles

Successive phase transitions in $$R_{3}$$Ir$$_{4}$$Sn$$_{13}$$ ($$R$$: La and Ce) investigated using neutron and X-ray diffraction

Nakazato, Seiya*; Iwasa, Kazuaki*; Hashimoto, Daisuke*; Shiozawa, Mami*; Kuwahara, Keitaro*; Nakao, Hironori*; Sagayama, Hajime*; Ishikado, Motoyuki*; Ohara, Takashi; Nakao, Akiko*; et al.

JPS Conference Proceedings (Internet), 30, p.011128_1 - 011128_6, 2020/03

Journal Articles

Crystal structure and cation distribution of the X-type hexaferrite Sr$$_{2}$$Co$$_{2}$$Fe$$_{28}$$O$$_{46}$$

Komabuchi, Mai*; Urushihara, Daisuke*; Asaka, Toru*; Fukuda, Koichiro*; Ohara, Takashi; Munakata, Koji*; Ishikawa, Yoshihisa*

Journal of the Physical Society of Japan, 89(3), p.034601_1 - 034601_5, 2020/03

 Times Cited Count:0 Percentile:100(Physics, Multidisciplinary)

Journal Articles

Magnetic, thermal, and neutron diffraction studies of a coordination polymer; bis(glycolato)cobalt(II)

Nakane, Tomohiro*; Yoneyama, Shota*; Kodama, Takeshi*; Kikuchi, Koichi*; Nakao, Akiko*; Ohara, Takashi; Higashinaka, Ryuji*; Matsuda, Tatsuma*; Aoki, Yuji*; Fujita, Wataru*

Dalton Transactions (Internet), 48(1), p.333 - 338, 2019/01

 Times Cited Count:1 Percentile:69.74(Chemistry, Inorganic & Nuclear)

Journal Articles

High oxide-ion conductivity in Si-deficient La$$_{9.565}$$(Si$$_{5.826}$$[]$$_{0.174}$$)O$$_{26}$$ apatite without interstitial oxygens due to the overbonded channel oxygens

Fujii, Kotaro*; Yashima, Masatomo*; Hibino, Keisuke*; Shiraiwa, Masahiro*; Fukuda, Koichiro*; Nakayama, Susumu*; Ishizawa, Nobuo*; Hanashima, Takayasu*; Ohara, Takashi

Journal of Materials Chemistry A, 6(23), p.10835 - 10846, 2018/06

 Times Cited Count:10 Percentile:27.91(Chemistry, Physical)

Journal Articles

Magnetic-ordering propagation vectors of terbium hexaboride revisited

Iwasa, Kazuaki*; Iga, Fumitoshi*; Moyoshi, Taketo*; Nakao, Akiko*; Ohara, Takashi

Journal of the Physical Society of Japan, 87(6), p.064705_1 - 064705_5, 2018/06

 Times Cited Count:0 Percentile:100(Physics, Multidisciplinary)

Journal Articles

Non-aqueous selective synthesis of orthosilicic acid and its oligomers

Igarashi, Masayasu*; Matsumoto, Tomohiro*; Yagihashi, Fujio*; Yamashita, Hiroshi*; Ohara, Takashi; Hanashima, Takayasu*; Nakao, Akiko*; Moyoshi, Taketo*; Sato, Kazuhiko*; Shimada, Shigeru*

Nature Communications (Internet), 8, p.140_1 - 140_8, 2017/07

 Times Cited Count:5 Percentile:63.43(Multidisciplinary Sciences)

Journal Articles

Molecular gyrotops with a five-membered heteroaromatic ring; Synthesis, temperature-dependent orientation of dipolar rotors inside the crystal, and its birefringence change

Masuda, Toshiyuki*; Arase, Junko*; Inagaki, Yusuke*; Kawahara, Masatoshi*; Yamaguchi, Kentaro*; Ohara, Takashi; Nakao, Akiko*; Momma, Hiroyuki*; Kwon, E.*; Setaka, Wataru*

Crystal Growth & Design, 16(8), p.4392 - 4401, 2016/08

 Times Cited Count:18 Percentile:10.48(Chemistry, Multidisciplinary)

Journal Articles

SENJU; A New time-of-flight single-crystal neutron diffractometer at J-PARC

Ohara, Takashi; Kiyanagi, Ryoji; Oikawa, Kenichi; Kaneko, Koji; Kawasaki, Takuro; Tamura, Itaru; Nakao, Akiko*; Hanashima, Takayasu*; Munakata, Koji*; Moyoshi, Taketo*; et al.

Journal of Applied Crystallography, 49(1), p.120 - 127, 2016/02

 Times Cited Count:24 Percentile:6.08(Chemistry, Multidisciplinary)

Journal Articles

Single-crystal neutron diffraction study of the heavy-electron superconductor CeNiGe$$_{3}$$

Ikeda, Yoichi*; Ueta, Daichi*; Yoshizawa, Hideki*; Nakao, Akiko*; Munakata, Koji*; Ohara, Takashi

Journal of the Physical Society of Japan, 84(12), p.123701_1 - 123701_5, 2015/12

 Times Cited Count:2 Percentile:72.99(Physics, Multidisciplinary)

Single-crystal neutron diffraction study was performed for anomalous antiferromagnetic ordering in a heavy-electron superconductor CeNiGe$$_{3}$$. We observed incommensurate magnetic Bragg reflections characterized with the propagation vector of $$k_{2}$$ = (0; 0:41; 1=2) below the N$'e$el temperature of 5 K, while there is no significant magnetic reflection at the commensurate propagation vector of $$k_{1}$$ = (1; 0; 0) at which another magnetic reflection was observed in the previous neutron diffraction study with a polycrystalline sample. From the single crystal study, we suggest that the magnetic phase of CeNiGe$$_{3}$$ at ambient pressure is characterized only by the incommensurate propagation vector $$k_{2}$$.

Journal Articles

Proton order-disorder phenomena in a hydrogen-bonded rhodium-$$eta$$$$^{5}$$-semiquinone complex; A Possible dielectric response mechanism

Mitsumi, Minoru*; Ezaki, Kazunari*; Komatsu, Yuki*; Toriumi, Koshiro*; Miyato, Tatsuya*; Mizuno, Motohiro*; Azuma, Nobuaki*; Miyazaki, Yuji*; Nakano, Motohiro*; Kitagawa, Yasutaka*; et al.

Chemistry; A European Journal, 21(27), p.9682 - 9696, 2015/06

 Times Cited Count:5 Percentile:73.52(Chemistry, Multidisciplinary)

Journal Articles

Oral presentation

Phase transition and internal crystal structure of superprotonic conductor, Rb$$_{3-x}$$K$$_{x}$$H(SeO$$_{4}$$)$$_{2}$$

Kiyanagi, Ryoji; Matsuo, Yasumitsu*; Ohara, Takashi; Kawasaki, Takuro; Oikawa, Kenichi; Kaneko, Koji; Tamura, Itaru; Hanashima, Takayasu*; Munakata, Koji*; Nakao, Akiko*; et al.

no journal, , 

The materials, M$$_{3}$$H(XO$$_{4}$$)$$_{2}$$ (M=alkaline metal, X=Se, S), exhibit high protonic conductivities in a relatively low temperature region. The high protonic conductivities emerge upon a structural phase transition and the phase transition temperature (Tc) varies depending on the elements of M and X. In this study, mixed materials, Rb$$_{3-x}$$K$$_{x}$$H(SeO$$_{4}$$)$$_{2}$$, were studied by means of conductivity measurements and single crystal neutron structure analyses in order to clarify how the elements at the M site affect the Tc from the structural aspect. The conductivity measurements revealed that the Tc decreased as the K content increased. The variation of the Tc was found to be non-linear with respect to the K content. The structure analyses showed that the K ions preferred to occupy one of two M sites and the occupancy of the K ion at this site non-linearly varied. In addition, the SeO$$_{4}$$ tetrahedron became more distorted as the K content increased, suggesting the close relationship between the distortion and the Tc.

Oral presentation

Oral presentation

Study of 2-(2'-hydroxyphenyl)benzimidazole by single crystal neutron diffraction at SENJU

Ohara, Takashi; Kiyanagi, Ryoji; Hanashima, Takayasu*; Moyoshi, Taketo*; Nakao, Akiko*; Munakata, Koji*; Kuroda, Tetsuya*

no journal, , 

no abstracts in English

Oral presentation

Development of a cryostat for photo-crystallography on a TOF single crystal diffractometer SENJU

Ohara, Takashi; Hanashima, Takayasu*; Munakata, Koji*; Moyoshi, Taketo*; Kiyanagi, Ryoji; Nakao, Akiko*; Kuroda, Tetsuya*

no journal, , 

Oral presentation

Single crystal neutron diffraction study of a crystalline-state photoisomerization by using a new TOF-Laue neutron diffractometer SENJU at J-PARC

Ohara, Takashi; Kiyanagi, Ryoji; Oikawa, Kenichi; Kawasaki, Takuro; Kaneko, Koji; Tamura, Itaru; Nakao, Akiko*; Hanashima, Takayasu*; Munakata, Koji*

no journal, , 

Oral presentation

Neutron structure analysis at J-PARC

Ohara, Takashi

no journal, , 

Oral presentation

Recent advances of a single crystal neutron diffractometer SENJU at J-PARC

Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Moyoshi, Taketo*; Moriyama, Kentaro*; Hanashima, Takayasu*; Kuroda, Tetsuya*

no journal, , 

Oral presentation

Latest status of SENJU, a TOF single crystal neutron diffractometer

Ohara, Takashi; Kiyanagi, Ryoji; Nakao, Akiko*; Munakata, Koji*; Moyoshi, Taketo*; Moriyama, Kentaro*

no journal, , 

no abstracts in English

23 (Records 1-20 displayed on this page)