Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Noriya Ichikawa"'
Publikováno v:
Materials, Vol 4, Iss 1, Pp 153-168 (2011)
New multiferroic compounds with double-perovskite structures were synthesized. Bi2NiMnO6 was synthesized in bulk form by high-pressure synthesis and also in a thin-film form by epitaxial growth. The material showed both ferromagnetic and ferroelectri
Externí odkaz:
https://doaj.org/article/5bb47cb172394383945a07f9e5aa972b
Autor:
Haichuan Guo, Midori Amano Patino, Noriya Ichikawa, Takashi Saito, Rei Watanabe, Masato Goto, Minghui Yang, Daisuke Kan, Yuichi Shimakawa
Publikováno v:
Chemistry of Materials. 34:345-350
Publikováno v:
Angewandte Chemie International Edition. 56:4243-4246
A perovskite-structure oxide containing unusually high-valence Fe3.5+ was obtained by high-pressure synthesis. Instability of the Fe3.5+ in Ca0.5Bi0.5FeO3 is relieved first by charge disproportionation at 250 K and then by intermetallic charge transf
Autor:
Yoshiteru Hosaka, Takashi Saito, Hayato Seki, Haichuan Guo, Yuichi Shimakawa, Noriya Ichikawa
Publikováno v:
Journal of Solid State Chemistry. 246:199-202
La1/3Ca2/3FeO3 with unusually-high-valence Fe3.67+ was synthesized at a high pressure and high temperature. The compound crystallizes in a √2a×2a×√2a perovskite cell in which the La and Ca ions at the A site are disordered. At 217 K the Fe3.67+
Publikováno v:
Journal of the Japan Society of Powder and Powder Metallurgy. 63:605-608
Autor:
Aoi Nii, Takashi Saito, Hiroki Kurata, Yoshiteru Hosaka, Yuichi Shimakawa, Noriya Ichikawa, Mitsutaka Haruta
Publikováno v:
Applied Physics Letters. 117:132902
The material properties of metal oxides are sensitive to even low levels of cation doping, and the local atomic structures around such trace elements in a crystal will differ from the bulk structure due to the different ionic size and electron config
Publikováno v:
Journal of Solid State Chemistry. 286:121263
Crystal structures and ionic conductivity of antiperovskites Li2OHX (X = Cl, Br), which are potential solid electrolyte materials for all-solid-state Li-ion batteries, were investigated. Li2OHCl showed a Pmc21 orthorhombic structure at room tem
Autor:
Mitsutaka Haruta, Yoshiteru Hosaka, Hiroki Kurata, Yuichi Shimakawa, Koji Kimoto, Noriya Ichikawa, Takashi Saito
Publikováno v:
Bulletin of the Chemical Society of Japan. 88:657-661
A new double perovskite Ca2FeMnO6 with a layered arrangement of Mn4+ and the unusually high-valence Fe4+ was obtained by oxidizing the precursor brownmillerite Ca2FeMnO5 with ozone at 200 °C. This ...
Autor:
Serena Corallini, Hellmut Eckert, Andrea Piovano, Josef Stern, Noriya Ichikawa, Jinjun Ren, Werner Paulus, Shubra Singh, Gilles Silly, K. Conder, Yuichi Shimakawa, Monica Ceretti, Clemens Ritter, Wei-Tin Chen, Fangcheng Chou
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Journal of Physical Chemistry C
Journal of Physical Chemistry C, American Chemical Society, 2015, pp.11447. ⟨10.1021/acs.jpcc.5b02173⟩
Journal of Physical Chemistry C, 2015, pp.11447. ⟨10.1021/acs.jpcc.5b02173⟩
Universidade de São Paulo (USP)
instacron:USP
Journal of Physical Chemistry C
Journal of Physical Chemistry C, American Chemical Society, 2015, pp.11447. ⟨10.1021/acs.jpcc.5b02173⟩
Journal of Physical Chemistry C, 2015, pp.11447. ⟨10.1021/acs.jpcc.5b02173⟩
We investigated moderate-temperature oxygen diffusion mechanisms in Sr2ScGaO5 with Brownmillerite structure type. From oxygen isotope 18O−16O exchange experiments we determined that oxygen mobility sets in above 550 °C. Temperature-dependent neutr
Autor:
Takashi Saito, Graham McNally, Noriya Ichikawa, Yuichi Shimakawa, J. Paul Attfield, Fabio Denis Romero, Yoshiteru Hosaka
Publikováno v:
Physical Review B. 96