論文 - 長谷川 正
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Electronic Structures of Transition-Metal Pernitrides Studied Using X-ray Absorption and Photoelectron Spectroscopy 査読有り
Kazuo Soda, Daiki Kato, Mai Komabuchi, Toshiki Terabe, Shin Takayama, Toshiki Ibaragi, Masahiko Kato, Ken Niwa, Masashi Hasegawa, Shoichi Takakura, and Masashi Nakatake
Journal of the Physical Society of Japan 90 巻 頁： 044710/1 - 044710/6 2021年
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Automated geometric aberration correction for large-angle illumination STEM 査読有り
Ryo Ishikawa, Riku Tanaka, Shigeyuki Morishita, Yuji Kohno, Hidetaka Sawada, Takuya Sasaki, Masanari Ichikawa, Masashi Hasegawa, Naoya Shibata, Yuichi Ikuhara
Ultramicroscopy 222 巻 頁： 11325/1-7 2021年
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Crystal and Electronic Structure of U7Te12-Type Tungsten Nitride Synthesized under High Pressure 査読有り
Chung-Ching Chang, Takuya Sasaki, Nico Alexander Gaida, Ken Niwa, and Masashi Hasegawa
Inorganic Chemistry 60 巻 頁： 13278 - 13283 2021年
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Elasticity of nanocrystalline kyanite at high pressure and temperature from ultrasonic and synchrotron X-ray techniques 査読有り
Nico A. Gaida, Steeve Gréaux, Yoshio Kono, Hiroaki Ohfuji, Hideharu Kuwahara Norimasa Nishiyama, Oliver Beermann, Takuya Sasaki, Ken Niwa, Masashi Hasegawa
Journal of the American Ceramic Society 104 巻 頁： 635-644 2021年
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前駆体を用いた8族遷移金属炭化物の超高温高圧合成 招待有り 査読有り
佐々木 拓也，長谷川 正
高圧力の科学と技術 31 巻 頁： 116 - 116 2021年
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Nitriding Synthesis and Structural Change of Phosphorus Nitrides at High Pressures 査読有り
Ken NIWA, Yasunori IIJIMA, Masaya UKITA, Ryuta TODA, Kazuaki TOYOURA, Takuya SASAKI, Katsuyuki MATSUNAGA, Nico Alexander GAIDA, Masashi HASEGAWA
Journal of Raman Spectroscopy 52 巻 頁： 1 - 9 2021年
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Crystal and Electronic Structures of MoSi2-Type CrGe2 Synthesized under High Pressure 査読有り
Takuya Sasaki, Kota Kanie, Tatsuya Yokoi, Ken Niwa, Nico Alexander Gaida, Katsuyuki Matsunaga, Masashi Hasegawa
Inorganic Chemistry 60 巻 頁： 1767-1772 2021年
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Thermal Expansion of Incompressible U2S3-Type Nb2N3 Synthesized in a Diamond Anvil Cell 査読有り
Shuto Asano, Ken Niwa, Takuya Sasaki, Nico Alexander Gaida, and Masashi Hasegawa
Inorganic Chemistry 59 巻 頁： 7915−7918 2020年
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超高圧力下での直接窒化反応による白金族金属二窒化物の創製 招待有り 査読有り
長谷川正，丹羽健
応用物理 89 巻 頁： 87-91 2020年
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Hydrogen Depth-profiles in Nb Hydrides Formed in Supercritical Water 査読有り
Kazuo Soda, Shinya Sugiura, Kanta Yamaguchi, Masahiko Kato, Ken Niwa, Masashi Hasegawa, Kohtaku Suzuki, Ryoya Ishigami, Eiji Ikenaga
e-Journal of Surface Science and Nanotechnology 18 巻 頁： 152−158 2020年
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Crystal structures and electronic properties of Sn3N4 polymorphs synthesized via high-pressure nitridation of tin 査読有り
Ken Niwa, Tomoya Inagaki, Tetsu Ohsuna, Zheng Liu, Takuya Sasaki, Nico Alexander Gaida and Masashi Hasegawa
CrystEngComm 22 巻 頁： 3531–3538 2020年
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Nanowire crystals of tantalum nitride grown in ammonium halide fluxes at high pressures 査読有り
Nico Alexander Gaida, Takuya Sasaki , Zheng Liu , Ken Niwa , Masaki Hirozawa, Tetsu Ohsuna , and Masashi Hasegawa
Applied Physics Letters 116 巻 頁： 123102/1-5 2020年
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Tuning the morphological structure, lightabsorption, and photocatalytic activity of Bi2WO6and Bi2WO6-BiOCl through cerium doping 査読有り
Mirabbos Hojamberdiev, Zukhra C. Kadirova, Ehsan Zahedi, Diego Onna, Marıa Claudia Marchi, Gangqiang Zhu, Nobuhiro Matsushita, Masashi Hasegawa, Sara Aldabe Bilmes, Kiyoshi Okada
Arabian Journal of Chemistry 13 巻 頁： 2844-2857 2020年
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Microstructural effects on hardness and optical transparency of birefringent aluminosilicate nanoceramics 査読有り
Nico A. Gaida Norimasa Nishiyama Oliver Beermann Ulrich Schürmann Atsunobu Masuno Christopher Giehl Ken Niwa Masashi Hasegawa Shrikant Bhat Robert Farla Lorenz Kienle
International Journal of Ceramic Engineering and Science 2 巻 頁： 76–82 2020年
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High-pressure synthesis and crystal structure of MoC-type tungsten nitride by nitridation with ammonium chloride 査読有り
Sasaki, Takuya; Ikoma, Takahide; Sago, Kazuki; Liu, Zheng; Niwa, Ken; OHSUNA, Tetsu; Hasegawa, Masashi
Inorganic Chemistry 頁： 16379-16386 2019年
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High-pressure synthesis, crystal growth, and compression behavior of hexagonal CrN2 having one-dimensionally aligned nitrogen dimer 査読有り
Ken Niwa, Takurou Yamamoto, Takuya Sasaki, and Masashi Hasegawa
Physical Review Materials 3 巻 頁： 053601/1-7 2019年
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High-Pressure Synthesis and Phase Stability of Nickel Pernitride 査読有り
Ken Niwa, Riku Fukui, Toshiki Terabe, Takuya Kawada, Daiki Kato, Takuya Sasaki, Kazuo Soda, and Masashi Hasegawa
Eur. J. Inorg. Chem. 2019 巻 頁： 3753–3757 2019年
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Infrared spectroscopy on electronic structures of platinum-group metal pernitrides MN2 (M = Ru, Rh, Ir, and Pt) 査読有り
Kazuo Soda, Mai Komabuchi, Keisuke Maeguchi, Masahiko Kato, Toshiki Terabe,Ken Niwa, Masashi Hasegawa, Yuka Ikemoto, Hidekazu Okamura
Physica B 558 巻 頁： 54-58 2019年
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Lithium ionic conductivities of alpha-LiBO2 with two-dimensional Li-Li networks and gamma-LiBO2 with three-dimensional ones synthesized under high pressure 招待有り 査読有り
Eiichi Hirose, Kunimitsu Kataoka, Hiroshi Nagata, Junji Akimoto, Takuya Sasaki, Ken Niwa, Masashi Hasegawa
Journal of Solid State Chemistry 274 巻 頁： 100-104 2019年
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Amorphous Fe2O3nanoparticles embedded into hypercrosslinked porouspolymeric matrix for designing an easily separable and recyclablephotocatalytic system 査読有り
Mirabbos Hojamberdiev, Zukhra C. Kadirova, Shahlo S. Daminova, Kunio Yubuta, Hadi Razavi-Khosroshahi, Khasan T. Sharipov, Masahiro Miyauchi, Katsuya Teshima
Applied Surface Science 466 巻 頁： 837-846 2019年