International Conference (Not reviewed / Unknown)

• Takuto Soma, Kodai Niitsu, Yushi Hiraide, Mitsuki Matsuura, Kohei Yoshimatsu, Akira Ohtomo, Hiroshi Kumigashira. Multinary Nitrides: A New Frontier for Oxide Epitaxy Techniques, iWOE32, Sept. 2026.
• Shu Takashima, Kohei Yoshimatsu, Akira Ohtomo. Repeated temperature modulation epitaxy of superconducting LiTi2O4, iWOE32, Sept. 2026.
• Kazuki Koreishi, Kohei Yoshimatsu, Akira Ohtomo. Quaternary ultrawide-bandgap oxide semiconductor alloy: AlScGaO, iWOE32, Sept. 2026.
• Keitaro Kanno, Takuto Soma, Satoru Fukamachi, Hiroki Ago, Daisuke Okuyama, Akira Ohtomo, Kohei Yoshimatsu. van der Waals epitaxy of Ti2O3 films on hexagonal boron nitride toward freestanding oxide membranes, iWOE32, Sept. 2026.
• Josei Fujiwara, Akira Ohtomo, Kohei Yoshimatsu. Solid-phase synthesis of Cr-doped V2O3 thin films on α-Al2O3 (011̅2) substrates exhibiting metal-insulator transition at room temperature, iWOE32, Sept. 2026.
• Daichi Miyazaki, Kohei Yoshimatsu, Akira Ohtomo. Epitaxial growth and electronic states of zirconium oxynitride thin films, iWOE32, Sept. 2026.
• Kazuki Koreishi, Kodai Niitsu, Takuto Soma, Kohei Yoshimatsu, Akira Ohtomo. Quaternary (AlxScyGa1−x−y)2O3 for Lattice-Matched β-Ga2O3 Heterostructures, International Workshop on Gallium Oxide and Related Materials (IWGO-6), Aug. 2026.

Domestic Conference (Not reviewed / Unknown)

• Takuto Soma, Yushi Hiraide, Hiroshi Kumigashira, Kohei Yoshimatsu, Akira Ohtomo. Chemical reactions upon combinatorial epitaxial thin films: high throughput exploration for crystalline phases and physical properties of multinary nitrides, 第86回応用物理学会秋季学術講演会, Sept. 2026.
• Kazuki Koreishi, Takuto Soma, Kohei Yoshimatsu, Akira Ohtomo. Electrical properties of β-Ga2O3 homoepitaxial films grown by PLD, 第86回応用物理学会秋季学術講演会, Sept. 2026.
• Takuto Soma, 金 榮牛, Kodai Niitsu, 裵 星旻, Kohei Yoshimatsu, Hiroshi Kumigashira, Akira Ohtomo. LaTiO /LaVO 強相関ヘテロ界面における電荷移動の抑制, 第87回応用物理学会秋季学術講演会, Sept. 2026.
• Josei Fujiwara, Akira Ohtomo, Kohei Yoshimatsu. 室温で金属絶縁体転移を示す α -Al O (01 1 2) 基板上CrドープV O 薄膜, 第87回応用物理学会秋季学術講演会, Sept. 2026.
• Kazuki Koreishi, Kohei Yoshimatsu, Akira Ohtomo. β -Ga O (100)微傾斜基板上に成長したSiドープAlScGaO薄膜の電気特性, 第87回応用物理学会秋季学術講演会, Sept. 2026.
• Daichi Miyazaki, Kohei Yoshimatsu, Akira Ohtomo. 複合アニオン化合物ZrN H のエピタキシャル成長と物性評価, 第87回応用物理学会秋季学術講演会, Sept. 2026.
• Takuto Soma, Kodai Niitsu, Kohei Yoshimatsu, Akira Ohtomo, Hiroshi Kumigashira. Exploration of novel inorganic solids via thin-film chemistry, 日本表面真空学会講演会, Sept. 2026.
• Keitaro Kanno, Takuto Soma, 深町 悟, 吾郷 浩樹, Daisuke Okuyama, Akira Ohtomo, Kohei Yoshimatsu. 六方晶窒化ホウ素多層膜を用いた完全歪み緩和Ti O 薄膜の実現, 第87回応用物理学会秋季学術講演会, Sept. 2026.
• Shu Takashima, Kohei Yoshimatsu, Akira Ohtomo. 固溶体緩衝層挿入よるLiV O /LiTi O 界面の自発的Li移動の抑制, 第87回応用物理学会秋季学術講演会, Sept. 2026.
• Takuto Soma, Yoshihisa Suzuki, Kohei Yoshimatsu, Hiroshi Kumigashira, Akira Ohtomo. β パイロクロア型 CsW 2 O 6 における金属 - 絶縁体転移とラットリング運動, 第８回固体化学フォーラム研究会, July 2026.
• 藤原 穣成1, Yuki Kinoshita, Takuto Soma, Akira Ohtomo, Kohei Yoshimatsu. Solid-state synthesis of Cr-doped V2O3 thin films towards realizing the metal-insulator transition at room temperature, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Takuto Soma, Yushi Hiraide, Kodai Niitsu, Yuki Sasahara, 仙田 敬, 水谷 仁美, Kohei Yoshimatsu, 安田 啓介, 間嶋 拓也, Hiroshi Kumigashira, Akira Ohtomo. Epitaxial growth of high-quality nitride epitaxial films using sputtering method, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Takuro Sekiguchi, Takuto Soma, Kohei Yoshimatsu, Akira Ohtomo. Synthesis and optical characterization of oxyhydroxide AlOOH thin films, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Keitaro Kanno, Takuto Soma, 深町 悟, 吾郷 浩樹, Hironori Nakao, Akira Ohtomo, Kohei Yoshimatsu. Structual properties of Ti2O3 films grown on van der Waals hBN multilayers, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Kazuki Koreishi, Kohei Yoshimatsu, Akira Ohtomo. Homoepitaxial growth of twin-free (100)-oriented β-Ga2O3 films using vicinal substrates, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Daichi Miyazaki, Kohei Yoshimatsu, Akira Ohtomo. Synthesis and characterizations of zirconium oxynitride epitaxial thin films, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Yuki Kinoshita, Takuto Soma, Akira Ohtomo, Kohei Yoshimatsu. Anisotropic metallic conduction near metal-insulator transition in (11-20) V2O3 filmsAnisotropic metallic conduction near metal-insulator transition in (11-20) V2O3 films, 第73回応用物理学会春季学術講演会, Mar. 2026.
• Keitaro Kanno, Takuto Soma, 深町 悟, 吾郷 浩樹, Hironori Nakao, Akira Ohtomo, Kohei Yoshimatsu. The 2.5-dimensional engineering of Ti2O3 on hBN and variations of thier metal-insulator transition behaviors, 2.5次元物質科学 : 第10回領域会議, Jan. 2026.

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