Papers - HASEGAWA, Masashi
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High-pressure synthesis of PbN2, the missing group 14 AN2-type compound Reviewed Open Access
Niwa, Ken; Ogasawara, Hirokazu; Sasaki, Takuya; Nomura, Shunsuke; Azuma, Gendai; Pitie , Sylvain ; Frapper, Gilles; Hasegawa, Masashi
Journal of Materials Chemistry A Vol. 13 page： in press - in press 2025
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Phase Transition of MnN2 Associated with N2 Dimer Alignment under High Pressure and High Temperature Reviewed
Shuto Asano, Ken Niwa, Tatsuya Yokoi, Takuya Sasaki, Saori Kawaguchi-Imada, Katsuyuki Matsunaga, and Masashi Hasegawa
Inorganic Chemistry Vol. 64 page： in press - in press 2025
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High-pressure synthesis via glass and photoluminescence properties of BaGe2O5 III-type SrSi2O5:Eu2+ with 12-coordinated Sr2+ site Reviewed Open Access
Takumi Kitahara, Takuya Sasaki, Genki Saito, Ken Niwa, Masashi Hasegawa
Ceramics International Vol. 51 page： in press - in press 2025
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High-pressure X-ray study of NbON oxynitride: direct transition from baddeleyite to cotunnite structure Reviewed
Kozaki, S; Yuan, Y; Ubukata, H; Wei, ZF; Tsumori, T; Asano, S; Niwa, K; Hasegawa, M; Kageyama, H
CHEMISTRY LETTERS Vol. 53 page： upae113/1 - upae113/5 2024
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新規な14族元素窒素化合物の超高圧高温合成と結晶化学 Invited Reviewed
丹羽 健, 小笠原 宏和, 山西 正悟, 佐々木 拓也, 長谷川 正
日本結晶学会誌 Vol. 66 page： 230 - 234 2024
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High-pressure synthesis, crystal structure and anisotropic thermal/compressive behaviors of pseudo-ternary (V,Cr,Mo)P4 Reviewed
Chung-Ching Chang, Takuya Sasaki, Shunsuke Muto, Nico Alexander Gaida, Ken Niwa, Masashi Hasegawa
Journal of Solid State Chemistry Vol. 340 page： 125021/1 - 125021/8 2024
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Synthesis and in-depth structure determination of a novel metastable high-pressure CrTe3 phase Reviewed
L. Voss, N.A. Gaida, A.-L. Hansen, M. Etter, N. Wolff, V. Duppel, A. Lotnyk, W. Bensch, H. Ebert, S. Mankovsky, S. Polesya, S. Bhat, R. Farla, M. Hasegawa, T. Sasaki, K. Niwa, L. Kienle
Journal of Applied Crystallography Vol. 57 page： 755 - 769 2024
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Decompression-Induced In-Plane Lone Pair Electrons in BiSF Synthesized under High Pressure Reviewed
C. Zhong, C. Tassel, D. Kato, K. Ogawa, K. Niwa, O. Tomita, Y. Ito, S. Kawaguchi, M. Hasegawa, R. Abe, H. Kageyama
Chemistry of Materials Vol. 36 page： 4495 - 4501 2024
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新規モリブデン–窒素化合物の超高圧合成と窒素ダイマーによる軸圧縮異方性 Invited Reviewed
佐々木 拓也, 浅野 秀斗, 丹羽 健, 長谷川 正
高圧力の科学と技術 Vol. 33 page： 254 - 260 2024
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High-pressure synthesis of a high-pressure phase of MnN having NiAs-type structure Reviewed
Shuto Asano, Ken Niwa, Takuya Sasaki, Masashi Hasegawa
Inorganic Chemistry Vol. 62 page： 20271 - 20278 2023
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Thermal expansion behavior of vanadium pernitride, CuAl2-type VN2 synthesized under high pressures Reviewed
Shuto Asano, Ken Niwa, Takuya Sasaki, Masashi Hasegawa
Progress in Solid State Chemistry Vol. 72 page： 100426/1 - 100426/5 2023
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High-pressure synthesis and low-temperature thermal expansion behavior of homogeneous phosphorus-rich pseudo-binary compound (V0.5Cr0.5)P4 Reviewed
Chung-Ching Chang, Takuya Sasaki, Nico Alexander Gaida, Ken Niwa, Masashi Hasegawa
Ceramics International Vol. 49 page： 40990 - 40994 2023
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遷移金属‐窒素二元系化合物の超高圧合成 Invited Reviewed
丹羽 健，浅野 秀斗，張 仲景，佐々木 拓也，長谷川 正
高圧力の科学と技術 Vol. 33 page： 26 - 33 2023
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Synthesis of garnet-type Mn4+-activated Y3(Al,Ga)5O12 and (Y,Gd)3Al5O12 phosphors with controlled emission by cation substitution Reviewed
Takuya Sasaki, Ryota Asaka, Ken Niwa, Nico Alexander Gaida and Masashi Hasegawa
Journal of the Ceramic Society of Japan Vol. 131 page： 696 - 700 2023
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新規遷移金属多窒化物の超高圧高温合成と圧縮および熱膨張特性 Invited Reviewed
長谷川正，浅野秀斗，張 仲景，佐々木拓也，丹羽健
熱測定 Vol. 50 page： 13 - 19 2023
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Low-temperature thermal expansion behavior of the entropy-stabilized oxide (MgCoNiCuZn)O Reviewed
Chang C.C., Sasaki T., Alexander Gaida N., Niwa K., Hasegawa M.
Materials Letters Vol. 347 page： 134601/1 - 134601/3 2023
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High-pressure synthesis and crystal structures of molybdenum nitride Mo3N5 with anisotropic compressibility by a nitrogen dimer Reviewed
Takuya Sasaki, Takuro Yamamoto, Shuto Asano, Ken Niwa and Masashi Hasegawa
Dalton Transactions Vol. 52 page： 469 - 475 2023
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金属窒化物 Invited Reviewed
長谷川 正
高圧力の科学・技術事典（編著） page： 266 - 267 2022
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高圧合成による新機能化合物の創製 Invited Reviewed
遊佐斉，長谷川正
まてりあ Vol. 61 page： 656 - 660 2022
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High-pressure polycrystalline thin-film synthesis and semiconducting property of platinum pernitride Reviewed
Ken Niwa, Tomoki Iizuka, Masashi Kurosawa, Yuto Nakamura, Hubert Okadome Valencia, Hideo Kishida, Osamu Nakatsuka, Takuya Sasaki, Nico Alexander Gaida, and Masashi Hasegawa
AIP Advances Vol. 12 page： 055318/1 - 055318/5 2022