論文 - 長谷川 正
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X-ray Detection using YBa2Cu3O7-δ Fine Wires: Temperature and Bias Current Characteristics 査読有り
Ginji Sugiura, Ken Niwa, Takuya Sasaki and Masashi Hasegawa
Superconductor Science and Technology 39 巻 頁： 065012/1 - 065012/8 2026年
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Thin-film synthesis of methylated germanane via topotactic conversion of epitaxial CaGe2 on Ge(111) substrates 査読有り
Atsuki Nakayama, Kaito Nakajima, Shigehisa Shibayama, Mitsuo Sakashita, Osamu Nakatsuka, Takuya Sasaki, Ken Niwa, Masashi Hasegawa, Tomonori Nishimura, Kosuke Nagashio, Masaaki Araidai, Masashi Kurosawa
Materials Science in Semiconductor Processing 214 巻 頁： 110841/1 - 110841/7 2026年
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Effects of transition metal carbide (TiC, VC, NbC) binder on mechanical properties and thermal conductivity of cubic boron nitride hard composites 査読有り
Takeru Sakamoto, Takuya Sasaki, Ken Niwa, Sho Yokoshi, Hiroyuki Sato, Hiroki Hara, Masashi Hasegawa
Diamond and Related Materials 166 巻 頁： 113702/1 - 113702/9 2026年
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High-Pressure Synthesis of a Silicon-Rich Ruthenium Silicide, RuSi3, with a 9-Coordinated Ru Site and a Si–Si Dumbbell 査読有り
Takumi Kitahara, Takuya Sasaki, Ken Niwa, Masashi Hasegawa
Inorganic Chemistry 65 巻 頁： 10466 - 10473 2026年
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High pressure synthesis and boron distribution of boron-doped nano-polycrystalline diamond 査読有り Open Access
Fumihide Sakano, Kazuhiro Ikeda, Koji Kuramochi, Takuya Sasaki, Ken Niwa, Norimasa Nishiyama, Yutaka Kobayashi, Masashi Hasegawa
Diamond and Related Materials 163 巻 頁： 113311/1 - 113311/8 2026年
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心を繋ぐ 招待有り 査読有り
長谷川 正
名古屋大学グローバル・エンゲージメントセンター年報 3 巻 頁： 1 - 1 2026年
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High-pressure synthesis of silicon-rich chromium silicides: PdGa5-type CrSi5 with Si network and "missing" MoSi2-type 査読有り Open Access
Takuya Sasaki, Koichi Takano, Kitahara Takumi, Nico Alexander Gaida, Ken Niwa, Masashi Hasegawa
Inorganic Chemistry 64 巻 頁： 19989 - 19997 2025年
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Direct observation of the compression behavior of polystyrene microbeads in a diamond anvil cell 査読有り Open Access
Haruto Moriguchi, Ken Niwa, Masashi Hasegawa, Yusuke Koide, Takato Ishida, Takashi Uneyama, and Yuichi Masubuchi
Nihon Reoroji Gakkaishi (J Soc Rheol Jpn) 53 巻 頁： 209 - 213 2025年
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High-pressure synthesis of PbN2, the missing group 14 AN2-type compound 査読有り Open Access
Niwa, Ken; Ogasawara, Hirokazu; Sasaki, Takuya; Nomura, Shunsuke; Azuma, Gendai; Pitie , Sylvain ; Frapper, Gilles; Hasegawa, Masashi
Journal of Materials Chemistry A 13 巻 頁： 20588 - 20596 2025年
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Phase Transition of MnN2 Associated with N2 Dimer Alignment under High Pressure and High Temperature 査読有り Open Access
Shuto Asano, Ken Niwa, Tatsuya Yokoi, Takuya Sasaki, Saori Kawaguchi-Imada, Katsuyuki Matsunaga, and Masashi Hasegawa
Inorganic Chemistry 64 巻 頁： 10700 - 10705 2025年
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High-pressure synthesis via glass and photoluminescence properties of BaGe2O5 III-type SrSi2O5:Eu2+ with 12-coordinated Sr2+ site 査読有り Open Access
Takumi Kitahara, Takuya Sasaki, Genki Saito, Ken Niwa, Masashi Hasegawa
Ceramics International 51 巻 頁： 31299 - 31304 2025年
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High-pressure X-ray study of NbON oxynitride: direct transition from baddeleyite to cotunnite structure 査読有り
Kozaki, S; Yuan, Y; Ubukata, H; Wei, ZF; Tsumori, T; Asano, S; Niwa, K; Hasegawa, M; Kageyama, H
CHEMISTRY LETTERS 53 巻 頁： upae113/1 - upae113/5 2024年
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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 招待有り 査読有り Open Access
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 66 巻 頁： 230 - 234 2024年
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High-pressure synthesis, crystal structure and anisotropic thermal/compressive behaviors of pseudo-ternary (V,Cr,Mo)P4 査読有り Open Access
Chung-Ching Chang, Takuya Sasaki, Shunsuke Muto, Nico Alexander Gaida, Ken Niwa, Masashi Hasegawa
Journal of Solid State Chemistry 340 巻 頁： 125021/1 - 125021/8 2024年
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Synthesis and in-depth structure determination of a novel metastable high-pressure CrTe3 phase 査読有り Open Access
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 57 巻 頁： 755 - 769 2024年
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Decompression-Induced In-Plane Lone Pair Electrons in BiSF Synthesized under High Pressure 査読有り
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 36 巻 頁： 4495 - 4501 2024年
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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 招待有り 査読有り
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 33 巻 頁： 254 - 260 2024年
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High-pressure synthesis of a high-pressure phase of MnN having NiAs-type structure 査読有り Open Access
Shuto Asano, Ken Niwa, Takuya Sasaki, Masashi Hasegawa
Inorganic Chemistry 62 巻 頁： 20271 - 20278 2023年
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Thermal expansion behavior of vanadium pernitride, CuAl2-type VN2 synthesized under high pressures 査読有り
Shuto Asano, Ken Niwa, Takuya Sasaki, Masashi Hasegawa
Progress in Solid State Chemistry 72 巻 頁： 100426/1 - 100426/5 2023年
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High-pressure synthesis and low-temperature thermal expansion behavior of homogeneous phosphorus-rich pseudo-binary compound (V0.5Cr0.5)P4 査読有り
Chung-Ching Chang, Takuya Sasaki, Nico Alexander Gaida, Ken Niwa, Masashi Hasegawa
Ceramics International 49 巻 頁： 40990 - 40994 2023年