Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Daigo Miwa"'
Autor:
Kazuki Takahashi, Daigo Miwa, Tetsuya Ishikawa, Yoshihito Tanaka, Kazuhisa Hanai, Yuji Kuwahara, K. Nakamatsu, Shik Shin, Akira Saito, Shinji Matsui, Yasumasa Takagi, Megumi Akai-Kasaya, Masakazu Aono
Publikováno v:
Surface Science. 601:5294-5299
To solve difficulties of instability and inaccuracy in synchrotron radiation based scanning tunneling microscopy, a method to reduce noise was investigated. New insulator-coat tips were developed to shut out electrons coming from a wide area that dam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac4e559c9ebd53d16a618c46a42baffe
https://doi.org/10.1016/j.susc.2007.04.223
https://doi.org/10.1016/j.susc.2007.04.223
Autor:
Daigo Miwa, Yuji Kuwahara, Tetsuya Ishikawa, Yasumasa Takagi, Makina Yabashi, Megumi Akai-Kasaya, Akira Saito, Yoshihito Tanaka, Shik Shin, Kenichiro Nakamatsu, Shinji Matsui, Masakazu Aono, Hiromasa Hosokawa, Koji Takahashi, Kazuhisa Hanai
Publikováno v:
Hyomen Kagaku. 28:453-458
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3f163dafbe628372eae01c0ad800f41
https://doi.org/10.1380/jsssj.28.453
https://doi.org/10.1380/jsssj.28.453
Autor:
Makina Yabashi, Keisuke Kobayashi, Y. Takata, Yukihiro Taguchi, Kouichi Ichikawa, T. Ishikawa, Keiichiro Yamamoto, Osamu Aita, Kojiro Mimura, Kenji Tamasaku, Daigo Miwa, Yoshinori Nishino, Shik Shin, Eiji Ikenaga, Koji Horiba, Hiroki Ishibashi, K. Kitamoto
Publikováno v:
Radiation Physics and Chemistry. 75:2072-2075
We have measured Ir 4f core-level photoemission spectra using an excitation photon energy of 6 keV for single crystalline CuIr 2 S 4 at 250 and 200 K across the metal–insulator transition temperature of about 226 K . The Ir 4f spin–orbit doublet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d320ca6021ad12a9ef186f811e03c8e8
https://doi.org/10.1016/j.radphyschem.2005.07.058
https://doi.org/10.1016/j.radphyschem.2005.07.058
Autor:
A. Takeuchi, Yoshinori Nishino, Mitsuhiro Awaji, Keisuke Kobayashi, Daigo Miwa, Takafumi Yao, Tetsuya Yamamoto, Takashi Matsuoka, Eiji Ikenaga, A. Yamamoto, J. J. Kim, M. Kobata, Pingping Chen, Hisao Makino
Publikováno v:
Applied Surface Science. 252:5602-5606
Recently, we have shown that hard X-ray photoemission spectroscopy using undulator X-rays at SPring-8 is quite feasible with both high resolution and high throughput. Here we report an application of hard X-ray photoemission spectroscopy to the chara
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27ddf6f75ef7bc6df0c7dcdd2b4de8bc
https://doi.org/10.1016/j.apsusc.2005.12.032
https://doi.org/10.1016/j.apsusc.2005.12.032
Autor:
Shik Shin, Kazuhiro Takami, Masakazu Aono, Shinji Hirotsune, Yuji Kuwahara, Megumi Akai-Kasaya, Yasumasa Takagi, Daigo Miwa, Tetsuya Ishikawa, Masahi Ishii, Makina Yabashi, Koji Takahashi, Ken Manabe, Yoshihito Tanaka, Akira Saito, K. Kitamoto, Junpei Maruyama
Publikováno v:
Japanese Journal of Applied Physics. 45:1913-1916
In situ scanning tunneling microscopy (STM) with highly brilliant hard X-ray irradiation was enabled at SPring-8. To obtain a good signal-to-noise ratio for elemental analysis, an X-ray beam with a limited size of 10 µm was aligned to a specially de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96b19c6a85c3e570f63e476528488fb6
https://doi.org/10.1143/jjap.45.1913
https://doi.org/10.1143/jjap.45.1913
Autor:
Ken Manabe, Megumi Akai-Kasaya, Masakazu Aono, Yasumasa Takagi, Masashi Ishii, Koji Takahashi, Junpei Maruyama, K. Kitamoto, Yoshihito Tanaka, Yuji Kuwahara, Makina Yabashi, Shik Shin, Daigo Miwa, Tetsuya Ishikawa, Kazuhiro Takami, Akira Saito
Publikováno v:
Journal of Synchrotron Radiation. 13:216-220
A scanning tunneling microscope dedicated to in situ experiments under the irradiation of highly brilliant hard-X-rays of synchrotron radiation has been developed. In situ scanning tunneling microscopy (STM) observation was enabled by developing an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e120cd29f43c40b6c22ebf893fe99e1c
https://doi.org/10.1107/s0909049506001622
https://doi.org/10.1107/s0909049506001622
Autor:
Yoshinori Nishino, Eiji Takayama-Muromachi, Makina Yabashi, Masaki Taniguchi, Takahiro Shimojima, H. Sakurai, Ashish Chainani, Syunsuke Tsuda, T. Ishikawa, H. Namatame, Shik Shin, Daigo Miwa, Kenji Tamasaku, K. Takada, Keisuke Kobayashi, T. Sasaki, M. Taguchi, Takayoshi Yokoya, Y. Takata, N. Kamakura, K. Horiba
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 547:163-168
We study the bulk electronic structure of Na x CoO 2 .yH 2 O using Hard X-ray (HX, h ν = 5.95 KeV) synchrotron photoelectron spectroscopy (PES). The Co 2 p core level spectra show well-separated Co 3 + and Co 4 + ions. Cluster calculations suggest l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::657f9dfe2d207cc294879b6b2611896d
https://doi.org/10.1016/j.nima.2005.05.021
https://doi.org/10.1016/j.nima.2005.05.021
Autor:
Yasutaka Takata, Shik Shin, T. Ishikawa, Kenji Tamasaku, Eiji Ikenaga, Keisuke Kobayashi, Yoshinori Nishino, Hiroshi Nohira, Kenya Shimada, Masaki Taniguchi, B. Wannberg, Masashi Arita, Koji Horiba, Daigo Miwa, H. Namatame, Makina Yabashi, Takeshi Hattori, S. Södergren
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 547:50-55
We have realized hard X-ray (HX) photoelectron spectroscopy (PES) with high-throughput and high-energy-resolution for core level and valence band studies using high-energy and high-brilliance synchrotron radiation at BL29XU in SPring-8. Large escape
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dc94afdde3f0b16757d25f6ff73c305
https://doi.org/10.1016/j.nima.2005.05.011
https://doi.org/10.1016/j.nima.2005.05.011
Autor:
J. J. Kim, Shik Shin, Makina Yabashi, Takashi Hanada, Daigo Miwa, Tetsuya Ishikawa, Takafumi Yao, Yoshinori Nishino, Keisuke Kobayashi, Tetsuya Yamamoto, Hisao Makino, Kenji Tamasaku, Eiji Ikenaga, Y. Takata, M.W. Cho
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. :561-564
Valence band spectra of Ga 1 − x Cr x N have been investigated by high-energy photoemission spectroscopy at the photon energy of 5.95 keV. Cr doping does introduce a novel electronic structure in the bandgap and causes some change in valence band s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76254cdd6bd83b90639233e2673c9136
https://doi.org/10.1016/j.elspec.2005.01.137
https://doi.org/10.1016/j.elspec.2005.01.137
Publikováno v:
Journal of Physics D: Applied Physics. 38:A61-A66
Synthetic type IIa diamonds were characterized using rocking curve measurements and x-ray topography with quasi-plane-wave incidence, and high resolution reciprocal space mapping. The rocking curves of the (111) crystals were comparable to the theore
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5e4130768821409fd5bec02b050218
https://doi.org/10.1088/0022-3727/38/10a/012
https://doi.org/10.1088/0022-3727/38/10a/012