Papers - NIWA, Ken
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Novel material synthesis using laser-heated diamond anvil cell Invited Reviewed
Vol. 24 page： 178-187 2014
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Discovery of the last remaining binary platinum group pernitride RuN2 Reviewed
K. Niwa, K. Suzuki, S. Muto, K. Tatsumi, K. Soda, T. Kikegawa and M. Hasegawa
Chemistry-A European Journal Vol. 20 ( 43 ) page： 13885 - 13888 2014
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Characterization of Nb Hydrides Synthesized in High-Pressure Supercritical Water by Micro-beam Hard X-ray Photoelectron Spectroscopy Reviewed
K. Soda, H. Kondo, M. Kato, T. Shiraki, K. Niwa, K. Kusaba, M. Hasegawa, E. Ikenaga
Journal of Electron Spectroscopy and Related Phenomena Vol. 186 page： 54-57 2013
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Argon Solubility in SiO2 Melt under High Pressures : A New Experimental Result using Laser-Heated Diamond-Anvil Cell Reviewed
K. Niwa, C. Miyakawa, J. Matsuda, T. Yagi
Earth and Planetary Science Letters Vol. 363 page： 1-8 2013
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Pressure-induced noble gas insertion into zeolite LTA and its incompressible behaviors at high pressure Reviewed
K. Niwa, T. Tanaka, M. Hasegawa, T. Okada, T. Yagi, K. Kikegawa
MICROPOROUS AND MESOPOROUS MATERIALS Vol. 182 page： 191-197 2013
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Effects of Sn2+ Ion Size on Sn Doped SrTiO3 Reviewed
S. Suzuki, A. Honda, K. Suzuki, S. Higai, A. Ando, K. Niwa, M. Hasegawa
Japanese Journal of Applied Physics Vol. 52 page： 09KC04 2013
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In-situ observation of shear stress-induced perovskite to post-perovskite phase transition in CaIrO3 and the development of its deformation texture in a diamond-anvil cell up to 30 GPa Reviewed
K. Niwa, N. Miyajima, Y. Seto, K. Ohgushi, H. Gotou, T. Yagi
Physics of the Earth and Planetary Interiors Vol. 194-195 page： 10–17 2012
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High pressure induced water penetration into 3-isopropylmalate dehydrogenase Reviewed
T. Nagae, T. Kawamura, L. Chavas, K. Niwa, M. Hasegawa, C. Kato, N. Watanabe
Acta Crystallographica D Vol. 68 page： 300–309 2012
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B1-to-B2 Structural Transitions in Rock Salt Intergrowth Structures Reviewed
T. Yamamoto, Y. Kobayashi, T. Okada, T. Yagi, T. Kawakami, C. Tassel, S. Kawasaki, N. Abe, K. Niwa, T. Kikegawa, N. Hirao, M. Takano, H. Kageyama
Inorg. Chem. Vol. 50 page： 11787-11794 2011.10
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Growth and optical properties of rectangular hollow tube TiO2 crystals with rutile-type structure Reviewed
K. Niwa, T. Taguchi, T. Tokunaga, M. Hasegawa
Crystal Growth & Design Vol. 11 ( 10 ) page： 4427-4432 2011.8
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Compression behaviors of binary skutterudite CoP3 in noble gases up to 40 GPa at room temperature Reviewed
K. Niwa, D. Nomichi, M. Hasegawa, T. Okada, T. Yagi, T. Kikegawa
Inorganic Chemistry Vol. 50 page： 3281–3285 2011.3
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超高圧超高温下での超臨界流体を用いた無機化合物の合成と単結晶育成
長谷川正，丹羽健
セラミックス Vol. 46 page： 378-385 2011
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ダイアモンドアンビルセルとレーザー加熱を用いた超高圧超高温超臨界流体中での結晶成長
長谷川正，丹羽健
日本結晶成長学会誌 Vol. 38 page： 4-11 2011
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Lattice-preferred orientations in post-perovskite-type MgGeO3 formed by transformations from different pre-phases Reviewed
T. Okada, T. Yagia, K. Niwa, T. Kikegawa
Phys. Earth Planet. Int. Vol. 180 ( 3-4 ) page： 195-202 2010.6
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Submicron rectangular hollow tube crystals of rutile-type GeO2 Reviewed
K. Niwa, H. Ikegaya, M. Hasegawa, T. Ohsuna, T. Yagi
J. Crystal Growth Vol. 312 ( 10 ) page： 1731-1735 2010.5
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Deformation microtextures in CaIrO3 post-perovskite under high stress conditions using a laser-heated diamond anvil cell Reviewed
N Miyajima, K Niwa, F Heidelbach, T Yagi and K Ohgushi
Journal of Physics: Conference Series Vol. 215 page： 012097 2010
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Elasticity of CaIrO3 with perovskite and post-perovskite structure Reviewed
K. Niwa, T. Yagi, K. Ohgushi
Phys. Chem. Minerals page： DOI: 10.1007/s00269-010-0378-z 2010
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Decomposition of perovskite FeTiO3 into wustite Fe1-xTi0.5xO and orthorhombic FeTi3O7 at high pressure Reviewed
D. Nishio-Hamane, T. Yagi, M. Ohshiro, K. Niwa, T. Okada, Y. Seto
Physical Review B Vol. 82 page： 092103 2010
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Combining FIB milling and conventional Argon ion milling techniques to prepare high-quality site-specific TEM samples for quantitative EELS analysis of oxygen in molten iron Reviewed
N. Miyajima, C. Holzapfel, Y. Asahara, L. Dubrovinsky, D.J. Frost, D.C. Rubie, M. Drechsler, K. Niwa, M. Ichihara, T. Yagi
J. Microsc. Vol. 238 ( 3 ) page： 200-209 2009.6
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The stability and equation of state for the cotunnite phase of TiO2 up to 70 GPa Reviewed
D. Nishio-Hamane, A. Shimizu, R. Nakahira, K. Niwa, A. Sano-Furukawa, T. Okada, T. Yagi, T. Kikegawa
Phys. Chem. Minerals Vol. 37 ( 3 ) page： 129-136 2009.3