Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Ryota Fukuyama"'
Publikováno v:
Chemical communications (Cambridge, England). 58(17)
Catalytic imino-ene-type allylation reactions of unactivated allyl compounds such as propylene were achieved. In the presence of a catalytic amount of a strongly basic K- or NaOtBu-LiTMP mixed system, the desired reactions proceeded smoothly.
Autor:
Kei Shigematsu, Kenji Yoshii, Naoshi Ikeda, Kosuke Fujiwara, Ryota Fukuyama, Yukimasa Fukada, Masaki Azuma
Publikováno v:
Journal of the Physical Society of Japan. 90:024710
We report an analysis of the dielectric glasslike state of the spin- and charge-ordered system Lu2Fe3O7, which has structural and physical properties analogous to those of the electronic ferroelect...
Autor:
Tomoko Nagata, Yasuhiro Yoneda, T. Fukuda, Naoshi Ikeda, Shigeo Mori, Kenji Yoshii, Takashi Kambe, Ryota Fukuyama
Publikováno v:
Solid State Communications. 173:34-37
We have investigated the magnetic properties of R 2 Fe 3 O 7 (R=Yb and Lu), which belongs to the homologous family of electronic ferroelectric RFe 2 O 4 . Magnetization measurements show ferrimagnetic ordering at the Neel temperature ( T N ) of ~270
Autor:
Hiroyuki Saitoh, Yasuhiro Yoneda, Naoshi Ikeda, Ryota Fukuyama, Masanori Fukunaga, Yoshinori Katayama
Publikováno v:
Transactions of the Materials Research Society of Japan. 35:111-114
Autor:
Takamasa Tsukamoto, Kenji Takada, Ryota Sakamoto, Ryota Matsuoka, Ryojun Toyoda, Hiroaki Maeda, Toshiki Yagi, Michihiro Nishikawa, Naoaki Shinjo, Shuntaro Amano, Tadashi Iokawa, Narutaka Ishibashi, Tsugumi Oi, Koshiro Kanayama, Rina Kinugawa, Yoichiro Koda, Toshiyuki Komura, Shuhei Nakajima, Ryota Fukuyama, Nobuyuki Fuse
Publikováno v:
Journal of the American Chemical Society; 4/19/2017, Vol. 139 Issue 15, p5359-5366, 8p
Autor:
Yasuo Nishihata, Takashi Kambe, Tomoko Nagata, Ryota Fukuyama, Daisuke Maeda, Kenji Yoshii, Shigeo Mori, Jun Kano, Naoshi Ikeda, Yoichi Horibe
Publikováno v:
Journal of the Physical Society of Japan. 81:033704
An exchange bias (EB) behavior has been observed for multiferroic R Fe 2 O 4 ( R =Y, Er, Tm, Yb, Lu, and In). The materials with small R 3+ ions ( R =Tm, Yb, Lu, and In) exhibit large EB fields (\({\gtrsim}1\) kOe) below ∼100–150 K. This property