論文

• Takayuki Nagata, Keigo Yamada, Taku Nonomura, Kumi Nakai, Yuji Saito, Shunsuke Ono. Data-driven sensor selection method based on proximal optimization for high-dimensional data with correlated measurement noise, IEEE Transactions on Signal Processing, vol. 70, pp. 5251-5264, Nov. 2022.
• Yukiharu Takeda, Shinobu Ohya, Nam Hai Pham, Masaki Kobayashi, Yuji Saitoh, Hiroshi Yamagami, Masaaki Tanaka, Atsushi Fujimori. Direct observation of the magnetic ordering process in the ferromagnetic semiconductor Ga1−xMnxAs via soft x-ray magnetic circular dichroism, Journal of Applied Physics, Vol. 128, pp. 213902, Dec. 2020.
• Shoya Sakamoto, Le Duc Anh, Pham Nam Hai, Yukiharu Takeda, Masaki Kobayashi, Yuki K. Wakabayashi, Yosuke Nonaka, Keisuke Ikeda, Zhendong Chi, Yuxuan Wan, Masahiro Suzuki, Yuji Saitoh, Hiroshi Yamagami, Masaaki Tanaka, Atsushi Fujimori. Magnetization process of the insulating ferromagnetic semiconductor (Al,Fe)Sb, Physical Review B, Vol. 101, pp. 075204, Feb. 2020.
• Shoya Sakamoto, Nguyen Thanh Tu, Yukiharu Takeda, Shin-ichi Fujimori, Pham Nam Hai, Le Duc Anh, Yuki K. Wakabayashi, Goro Shibata, Masafumi Horio, Keisuke Ikeda, Yuji Saitoh, Hiroshi Yamagami, Masaaki Tanaka, Atsushi Fujimori. Electronic structure of the high- TC ferromagnetic semiconductor (Ga,Fe)Sb: X-ray magnetic circular dichroism and resonance photoemission spectroscopy studies, Physical Review B, Vol. 100, 035204, July 2019.
• Keisuke Ishigami, Kohei Yoshimatsu, Daisuke Toyota, Takizawa Masaru, Teppei Yoshida, Goro Shibata, Takayuki Harano, Yukio Takahashi, Toshiharu Kadono, V. K. Verma, V. R. Singh, Yukiharu Takeda, Tetsuo Okane, Yuji Saitoh, Hiroshi Yamagami, Tsuneharu Koide, Msaharu Oshima, Hiroshi Kumigashira, Atushi. Fujimori. Thickness-dependent magnetic properties and strain-induced orbital magnetic momentin SrRuO₃ thin films, PHYSICAL REVIEW B, American Physical Society, Vol. 92, Page 064402, Aug. 2015.
• M. Kobayashi, L. D. Anh, P. N. Hai, Y. Takeda, S. Sakamoto, T. Kadono, T. Okane, Y. Saitoh, H. Yamagami, Y. Harada, M. Oshima, M. Tanaka, A. Fujimori. Spin and orbital magnetic moments of Fe in the n-type ferromagnetic semiconductor (In,Fe)As, Applied Physics Letters, Vol. 105, p. 032403, July 2014.
• G. Shibata, K. Yoshimatsu, Enju Sakai, V. R. Singh, V. K. Verma, Keisuke Ishigami, Takayuki Harano, Toshiharu Kadono, Yukiharu Takeda, Tetsuo Okane, Yuji Saitoh, Hiroshi Yamagami, Akihito Sawa, Hiroshi Kumigashira, Masaharu Oshima, Tsuneharu Koide, Atsushi Fujimori. Thickness-dependent ferromagnetic metal to paramagnetic insulator transition in La_0.6Sr_0.4MnO₃ thin films studied by x-ray magnetic circular dichroism, Physical Review B, 89, 235123, June 2014.
• V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, Y. Yamazaki, A. Fujimori, Yukiharu Takeda, Tetsuo Okane, Yuji Saitoh, Hiroshi Yamagami, Y. Nakamura, M. Azuma, Y. Shimakawa. Enhanced ferromagnetic moment in Co-doped BiFeO₃ thin films studied by soft x-ray circular dichroism, JOURNAL OF APPLIED PHYSICS, Vol. 114, pp. 103905-1-6, Sept. 2013.

国内会議発表 (査読有り)

• S. Sakamoto, M. Kobayashi, G. Shibata, Y. Takahashi, A. Fujimori, T. Koide, Y. Takeda, Y. Saitoh, H. Yamagami, L. Duc Anh, P. N. Hai, M. Tanaka. XMCD measurements of ferromagnetic semiconductor (In,Fe)As, 第18回半導体スピン工学の基礎と応用（PASPS-18）, Dec. 2013.

国内会議発表 (査読なし・不明)

• Shoya Sakamoto, Duc Anh Le, Nam Hai Pham, Yukiharu Takeda, Masaki Kobayashi, Ryosho Nakane, Yuki Wakabayashi, Yosuke Nonaka, Keisuke Ikeda, Zhendong Chi, Yuxuan Wan, Masahiro Suzuki, Yuji Saitoh, Hiroshi Yamagami, Masaaki Tanaka, Atsushi Fujimori. Magnetization process of the insulating ferromagnetic semiconductor (Al,Fe)Sb, The 65th JSAP Spring meeting, Mar. 2018.
• Shoya Sakamoto, Nguyen Thanh Tu, Yukiharu Takeda, Shin-ichi Fujimori, Pham Nam Hai, Le Duc Anh, Yuki Wakabayashi, Goro Shibata, Masafumi Horio, Keisuke Ikeda, Yuji Saitoh, Hiroshi Yamagami, Masaaki Tanaka, Atsushi Fujimori. Electronic Structure of the p-type Ferromagnetic Semiconductor (Ga,Fe)Sb, 第77回応用物理学会秋季学術講演会, Sept. 2016.
• 坂本祥哉, 小林正起, 芝田悟朗, 高橋文雄, 藤森 淳, 小出常晴, 竹田幸治, 山上浩志, 斎藤祐児, Le Duc Anh, Pham Nam Hai, 田中雅明. 強磁性半導体(In,Fe)AsのXMCD測定, 日本物理学会2013年秋季大会, Sept. 2013.
• 竹田 幸治, 岡根 哲夫, 藤森 淳, 斎藤 祐児, 山上 浩志, 大矢 忍, ファム ナム ハイ, 田中 雅明. 軟Ｘ線磁気円二色性によるGa1-xMnxAsのアニール効果の研究2, 特定領域研究「スピン流の創出と制御」平成21年度成果報告会, Jan. 2010.
• 竹田幸治, 小林正起, 岡根哲夫, 大河内拓雄, 岡本 淳, 斎藤祐児, 小林 啓介, 山上浩志, 藤森 淳, 田中新, 岡林潤, 尾嶋正治, 大矢忍, ファム ナム ハイ, 田中雅明. Ga1-xMnxAsの内殻吸収磁気円二色性による磁気的相互作用の研究, 日本物理学会2008年秋季大会, Sept. 2008.
• 竹田幸治, 岡本淳, 岡根哲夫, 藤森伸一, 斎藤祐児, 村松康司, 藤森 淳, 岡林潤, 尾嶋正治, 大矢忍, Pham Nam Hai, 田中雅明. GaMnAsのXMCDの磁場・温度・濃度依存性, 日本物理学会2005年秋季大会, Sept. 2005.
• 竹田幸治, 岡本淳, 岡根哲夫, 藤森伸一, 斎藤祐児, 村松康司, 藤森 淳, 岡林潤, 尾嶋正治, 大矢忍, Pham Nam Hai, 田中雅明. GaMnAsの軟X線磁気円二色性の磁場依存性II, 日本物理学会 第60回年次大会, Mar. 2005.

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