Angle-resolved photoemission measurement along the van-der-Waals stacking direction of ZrTe3; 2022年08月 発表情報; Journal of the Physical Society of Japan, 91 (2022) 094708-1_4. 著者; Makoto Maki, Yuji Fujimoto, Isamu Yamamoto, Junpei Azuma, Sora Kobayashi, Satoshi Demura, Hideaki Sakata
Thickness dependent band structure of α-bismuthine grown on epitaxial graphene; 2022年04月 発表情報; J. Phys. Cond. Matter, 34, 23, 235502 (2022) 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, and Junpei Azuma
Photoinduced intragap excitations in the incommensurate charge density wave phase of Rb0.3MoO3; 2021年10月 発表情報; Physics Letters A, 412, 127576_1-5 (2021), 412, 127576 著者; Makoto Maki, Kazuki Matsuo, Emi Koga, Isamu Yamamoto, Junpei Azuma
Structural analyses of Gd3(Al,Ga)5O12 garnet solid solutions via X-ray and UV absorption spectroscopy experiments for Gd atoms; 2021年06月 発表情報; Journal of Alloys and Compounds 867 (2021) 159055, 867, 159055 著者; Mamoru Kitaura, Kei Kamada, Toshiaki Ina, Hisanori Yamane, Manabu Ishizaki, Shinta Watanabe, Junpei Azuma, Isamu Yamamoto, Akimasa Ohnishi, Takeshi Usuki
Spatial Control of Charge Doping in n-Type Topological Insulators; 2021年05月 発表情報; Nano Letters, 21, 4415-422 (2021), 21, 10, 4415-4422 著者; Sakamoto Kazuyuki, Ishikawa Hirotaka, Wake Takashi, Ishimoto Chie, Fujii Jun, Bentmann Hendrik, Ohtaka Minoru, Kuroda Kenta, Inoue Natsu, Hattori Takuma, Miyamachi Toshio, Komori Fumio, Yamamoto Isamu, Fan Cheng, Krüger Peter, Ota Hiroshi, Matsui Fumihiko, Reinert Friedrich, Avila José, Asensio Maria
One dimensionality of the spin-polarized surface conduction and valence bands on Bi/GaSb(110)-(2x1); 2020年06月 発表情報; Phys. Rev. B, 101, 23, 235306, 101, 23, 235306 著者; Yoshiyuki Ohtsubo, Naoki Tokumasu, Hiroshi Watanabe,Takuto Nakamura, Patrick Le Fevre, Francois Bertran, Masaki Imamura, Isamu Yamamoto, Junpei Azuma, Kazutoshi Takahashi, and Shin-ichi Kimura
Self-organized formation of chemical bonding in misfit-layered bismuth-based cobaltites; 2019年04月 発表情報; Journal of Electron Spectroscopy and Related Phenomena, 232, 95-99, 232, 95-99 著者; Makoto Maki, Sho-ichi Takakura, Isamu Yamamoto, Junpei Azuma
Circular dichroism in angle-resolved photoemission mapping of surface state on Bi(111); 2019年01月 発表情報; AIP Conf. Proc., 2054, 1, 040011 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, Junpei Azuma
Electronic structure of the surface unoccupied band of Ge(001)-c(4 × 2): Direct imaging of surface electron relaxation pathways; 2017年09月 発表情報; Physical Review B 96, 11, 115301_1-7 著者; J. Kanasaki, I. Yamamoto, J. Azuma, S. Fukatsu
Optical Absorption and Electric Resistivity of an L-Cysteine Film; 2016年11月 発表情報; Journal of the Physical Society of Japan, 85, 12, 124713 著者; Masao Kamada, Takuya Hideshima, Junpei Azuma, Isamu Yamamoto, Masaki Imamura, and Kazutoshi Takahashi
Occupied and unoccupied electronic structures of an L-cysteine film studied by core-absorption and resonant photoelectron spectroscopies; 2016年04月 発表情報; AIP Advances, 6, 4, 045306 (2016) 著者; M. Kamada, T. Hideshima, J. Azuma, I. Yamamoto, M. Imamura, and K. Takahashi
Temperature-dependent Fermi surface of misfit cobaltite [Bi2Sr2O4]0.51CoO2:
A comparison with [Bi2Ba2O4]0.50CoO2; 2016年04月 発表情報; Physical Review B, 93, 16, 165118 (2016) 著者; Sho-ichi Takakura, Isamu Yamamoto, Emi Koga, Fusao Ichikawa, Junpei Azuma, and Makoto Maki
Photo-induced valence change of the sulfur atom in an L-cysteine thin film grown on a
silver metal substrate in a saliva-emulated aqueous solution; 2015年04月 発表情報; Applied Physics Letters, 106, 17, 173702 著者; Toru Tsujibayashi, Junpei Azuma, Isamu Yamamoto, Kazutoshi Takahashi, and Masao Kamada
Photoelectron Spectroscopic Study on Decay Processes
of Core-Excited States of NaNO2; 2015年04月 発表情報; Journal of the Physical Society of Japan, 84, 5, 054707 著者; Masao Kamada, Junpei Azuma, Yuki Ueda, Isamu Yamamoto, Masaki Imamura, and Kazutoshi Takahashi
Anomalous photoelectric emission from Ag on zinc-phthalocyanine film; 2014年05月 発表情報; Applied Physics Letters 104, 193304 (2014), 104, 19, 193304 著者; Senku Tanaka, Tomohiro Otani, Ken Fukuzawa, Koji Ogawa, Junpei Azuma, Isamu Yamamoto, Kazutoshi Takahashi, Masao Kamada, and Ichiro Hiromitsu
Electronic structures in unoccupied states of Bi thin film studied with two-photon photoemission spectroscopy; 2013年02月 発表情報; Applied Surface Science, 267, 66-69 著者; Masaki Imamura, Shuji Fujimasa, Kazutoshi Takahashi, Isamu Yamamoto, Junpei Azuma, Masao Kamada
The observation of unoccupied quantum-well states in Bi thin film grown on Si(111) by two-photon photoemission spectroscopy; 2011年12月 発表情報; Applied Physics Letters, 99, 24, 243101_1-243101_3 著者; Shuji Fujimasa, Masaki Imamura, Kazutoshi Takahashi, Isamu Yamamoto, Junpei Azuma, and Masao Kamada
Lateral inhomogeneity of unoccupied states for PbPc films; 2011年03月 発表情報; Surface Science, 605, 9-10, 982-986 著者; R. Yamamoto, I. Yamamoto, M. Mikamori, T. Yamada, K. Miyakubo, T. Munakata
Spin reorientation transitions of Ni/Pd(111) films induced by Fe deposition; 2010年06月 発表情報; Physical Review B, 81, 21, 21442_1-21442_7 著者; Isamu Yamamoto, Takeshi Nakagawa, Yasumasa Takagi, Toshihiko Yokoyama
Magnetic Circular Dichroism Study of Ultrathin Ni Films by Threshold Photoemission and Angle Resolved Photoemission Spectroscopy; 2010年04月 発表情報; Journal of Electron Spectroscopy and Related Phenomena, 181, 2-3, 164-167 著者; Takeshi Nakagawa, Isamu Yamamoto, Yasumasa Takagi, Toshihiko Yokoyama
一般講演(学術講演を含む)
Electronic Structure at ZnPc/Au(111) Interface Studied by Angle-Resolved Two-Photon Photoemission Spectroscopy; 2024年10月 発表情報; The 10th International Symposium on Surface Science (ISSS-10), Kita-kyushu, Japan, Oct. 20-24, 2024 著者; Isamu Yamamoto, Naoki Matsufuji, Junpei Azuma, Masaki Imamura, Kazutoshi Takahashi
Photo-stimulated thinning of few-layer graphene films grown on 4H-SiC(0001) surface; 2024年10月 発表情報; The 10th International Symposium on Surface Science (ISSS-10) 著者; Ryuichi Hirosue, Koki Nabeshima, Jun'ichi Kanasaki, Kenji Kisoda, Isamu Yamamoto, Junpei Azuma
Angle-resolved photoemission spectroscopy of flat honeycomb Bi on Ag(111); 2024年10月 発表情報; The 10th International Symposium on Surface Science (ISSS-10) 著者; Haruto Ikeda, Masaki Imamura, Isamu Yamamoto, Junpei Azuma, Kazutoshi Takahashi
Electron dynamics on Ge(111) and (001) surfaces: bulk-to-surface scattering and surface relaxation of photo excited electrons; 2024年10月 発表情報; The 10th International Symposium on Surface Science (ISSS-10), Kita-kyushu, Japan, Oct. 20-24, 2024 著者; Tomoki Nakagawa, Akihito Fujimoto, Jun'ichi Kanasaki, Isamu Yamamoto, Junpei Azuma, Susumu Fuktsu
Surface Atomic Structure and Valence Band Structure of Bulk SiGe Single Crystals; 2023年12月 発表情報; The 3rd Materials Research Meeting (MRM 2023) The 24th IUMRS-International Conference in Asia (IUMRS-ICA 2023), Kyoto International Conference Center, Japan, 2023.12.11-16 著者; Kazutoshi Takahashi, Masaki Imamura, Yuuki Umeda, Isamu Yamamoto, Junpei Azuma, Marina Takaira, Yoshihumi Ikoma, Yasutomo Arai
Angle-resolved photoemission study of ultra-flat bismuthene grown on Ag(111); 2023年10月 発表情報; Annual Meeting of the Japan Society of Vacuum and Surface Science 2023, 2023.10.31-11.2 Nagoya 著者; Kazutoshi Takahashi, Masaki Imamura, Haruto Ikeda, Ryosuke Koyama, Isamu Yamamoto, Junpei Azuma
Status of Saga University Beamline; 2023年10月 発表情報; 60 years of Synchrotron Radiation in Japan (JPSR60), Okazaki 2023.10.24-25 著者; Kazutoshi Takahashi, Junpei Azuma, Masaki Imamura, Isamu Yamamoto, Deng Gaofeng, Katsuhiko Saito, and Qixin Guo
Unoccupied Electronic Structure for Bi√3×√3R30° Surface Studied by Two-Photon Photoemission Spectroscopy; 2018年10月 発表情報; 14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14), Sendai, 2018.10.21-25 著者; Masaki Imamura, Kotaro Matuishi, Isamu Yamamoto, Junpei Azuma, and Kazutoshi Takahashi
The molecular orientation of ZnPc ultrathin films grown on SrTiO3(100) studied by NEXAFS spectroscopy; 2018年10月 発表情報; The 14th international conference on electronic spectroscopy and structure (ICESS2018), Shanghai, China, 2018.10.8-12 著者; I. Yamamoto, T. Uno, M. Imamura, K. Takahashi and J. Azuma
Circular dichroism in angle-resolved photoemission mapping of surface state on Bi(111); 2018年06月 発表情報; International conference on synchrotron radiation instrumentation (SRI2018), Taipei International Convention Center, 2018.6.10-15 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto and Junpei Azuma
Unoccupied electronic states of 3d transition-metal phthalocyanine thin films; 2016年11月 発表情報; International Workshop on Advanced Spectroscopy of Organic Materials for Electronic Applications (ASOMEA-8), Okazaki, Japan, 2016.11.23-25 著者; I. Yamamoto, O. Inoue, M. Imamura, K. Takahashi, J. Azuma
Unoccupied Electronic structure of BiAg surface alloy studied with two-photon photoemission spectroscopy; 2016年10月 発表情報; The 13th Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN 2016), Rome, 2016.10.9-15 著者; Masaki Imamura, Koutaro Matsuishi, Kazutoshi Takahashi, Isamu Yamamoto, and Junpei Azuma
Electronic structure of ultrathin Bi(110) films on epitaxial graphene studied by SR and laser photoemission spectroscopy; 2016年10月 発表情報; The 13th Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN 2016), Rome, 2016.10.9-15 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, and Junpei Azuma
Angle-resolved photoemission study of ultrathin Bi(110) films grown on epitaxial graphene; 2016年07月 発表情報; The 39th International Conference of Vacuum Ultraviolet and X-ray Physics (VUVX2016), Zurich, 2016.7.3-8 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, and Junpei Azuma
Interface Oxidation and Carrier Lifetime of Graphene/SiC(0001) Studied by Synchrotron Radiation and Laser Photoemission Spectroscopy; 2015年11月 発表情報; The 15th International Conference on the Formation of Semiconductor Interfaces (ICFSI-15), Hiroshima, 2015.11.15-20 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, Junpei Azuma, and Masao Kamada
Linear Dichroism of Topological Surface State Studied by Angle-Resolved Multi-Photon Photoemission Spectroscopy; 2015年11月 発表情報; The 15th International Conference on the Formation of Semiconductor Interfaces (ICFSI-15), Nov.15-20, 2015, International Conference Center Hiroshima, Hiroshima, Japan 著者; I. Yamamoto, Y. Nogata, J. Azuma, M. Imamura, K. Takahashi and M. Kamada
Unoccupied Electronic Structures of Bi2Te3(111) Studied by Angle-Resolved Multi-Photon Photoemission Spectroscopy; 2015年10月 発表情報; International Conference on Electron Spectroscopy and Structure (ICESS-15), Sep.28-Oct.2, 2015, Stony Brook University, USA 著者; I. Yamamoto, Y. Nogata, J. Azuma, M. Imamura, K. Takahashi, M. Kamada
Two-Photon Photoemission Study of Hydrogen and Oxygen Intercalated Graphene on SiC(0001); 2015年05月 発表情報; The 9th International Symposium on Ultrafast Surface Dynamics (USD9), May 25-9, 2015, Lake Biwa, Japan 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, Junpei Azuma and Masao Kamada
Image Potential States of Bi2Te3(111) Studied by Time-Resolved 2-Photon Photoemission Spectroscopy; 2015年05月 発表情報; The 9th International Symposium on Ultrafast Surface Dynamics (USD9), May 25-9, 2015, Lake Biwa, Japan 著者; I. Yamamoto, Y. Nogata, J. Azuma, M. Imamura, K. Takahashi, M. Kamada
Time-resolved Two-photon Photoemission Spectroscopy of Epitaxial Graphene on SiC; 2014年11月 発表情報; The 7th International Symposium on Surface Science, Nov.2-6, 2014, Shimane, Japan 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, Junpei Azuma, and Masao Kamada
Photo-induced valence change of the L-cysteine/Ag grown in the aqueous solution; 2014年08月 発表情報; The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), Fukuoka, Japan, 2014.8.24-30.(8/25) 著者; T. Tsujibayashi, J. Azuma, I. Yamamoto, K. Takahashi, M. Kamada
Occupied and Unoccupied Electronic States of Au(111) Studied by Combined Use of AR1PPE and AR2PPE; 2014年08月 発表情報; The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), Fukuoka, Japan, 2014.8.24-30(8/25) 著者; Yutaro Nogata, Isamu Yamamoto, Junpei Azuma, Masaki Imamura, Kazutoshi Takahashi, and Masao Kamada
Photo-excited Carrier Dynamics of Topological Insulator Bi_2_Te_3_ Studied by Time- and Angle-resolved Two-photon Photoemission Spectroscopy; 2014年08月 発表情報; The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), Fukuoka, Japan, 2014.8.24-30(8.25). 著者; Isamu Yamamoto, Junpei Azuma, Koji Ogawa, Msaki Imamura, Kazutoshi Takahashi, and Msao Kamada
Image-potential States on Epitaxial Graphene Grown on SiC(0001) Studied by Time- and Angle-resolved Two-photon Photoemission Spectroscopy; 2014年08月 発表情報; The 15th IUMRS-International Conference in Asia (IUMRS-ICA 2014), Fukuoka, Japan, 2014.8.24-30(8.25). 著者; Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, Junpei Azuma, and Masao Kamada
Bi 表面における非占有電子状態に関する研究; 2012年12月 発表情報; 平成24年度応用物理学会九州支部学術講演会、佐賀市、2012.12.1-2 著者; 畝岡慶、今村真幸、遠藤修平、高橋和敏、山本勇、東純平、鎌田雅夫
Image Potential States on Manganese Phthalocyanine Thin Films; 2012年09月 発表情報; The 29th European Conference on Surface Science,(P2-049, 5/Sep.) Edinburgh, UK, (3-7/Sep. 2012). 著者; I. Yamamoto, K. Mizoue, J. Azuma, M. Imamura, K. Takahashi and M. Kamada
Study of Quantum Well States in Bi Thin Film by Two-photon Photoemission Spectroscopy; 2012年09月 発表情報; The 12th International Conference on Electron Spectroscopy and Structure (ICESS-12), September 16-21, 2012, Saint-Malo, France 著者; Masaki Imamura, Shuji Fujimasa, Kazutoshi Takahashi, Isamu Yamamoto, Junpei Azuma, Masao Kamada, and Hidehiro Yasuda
Excited Electronic States on Epitaxial Graphene Studied by Two-photon Photoemission Spectroscopy; 2012年09月 発表情報; The 12th International Conference on Electron Spectroscopy and Structure (ICESS-12), September 16-21, 2012, Saint-Malo, France 著者; K. Takahashi, S. Anami, M. Imamura, I. Yamamoto, J. Azuma, and M. Kamada
Upgrade of Saga-university beamline in SAGA-LS; 2012年07月 発表情報; The 11th International Conference on Synchrotron Radiation Instrumentation (SRI2012) 著者; K. Takahashi, M. Imamura, I. Yamamoto, J. Azuma, K. Ogawa, M. Kamada, S. Koda, H. Ohkuma, and S. Yamamoto
Electronic structures in unoccupied states of thin Bi film studied with two-photon photoemission spectroscopy; 2011年10月 発表情報; 11th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN11) 著者; Imamura Masaki, Fujimasa Shuji, Takahashi Kazutoshi, Yamamoto Isamu, Azuma Junpei ,and Kamada Masao
Occupied and Unoccupied Electronic States of Manganese Phthalocyanine Thin Films; 2011年08月 発表情報; The 28th European Conference on Surface Science, (BIO-01,31/Aug), Wroclaw, Poland, (28/Aug-2/Sep. 2011). 著者; I. Yamamoto, J. Azuma, M. Imamura, K. Ogawa, K. Takahashi and M. Kamada
Electronic states and structure of metal-phthalocyanine thin films; 2018年06月 発表情報; Workshop of Synchrotron Light Application on Material Research 著者; Isamu Yamamoto
Time-resolved Photoemission Spectroscopy Using Synchrotron Radiation and Laser at Saga University Beamline; 2018年05月 発表情報; International Symposium on Spectroscopy and Dynamics at Surface and Interface(ISSDSI), Kyoto University, Japan, 2018.5.24-25 著者; Isamu Yamamoto
Electronic states of Bi(110) ultrathin films studied by photoemission spectroscopy with laser and synchrotron radiation; 2018年04月 発表情報; Conference on Laser and Synchrotron Radiation Combination Experiment 2018 (LSC2018), Yokohama, 2018.4.23-27 著者; K. Takahashi, M. Imamura, I. Yamamoto, and J. Azuma