Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Naohisa Happo"'
Autor:
Seiji Nakashima, Koji Kimura, Naohisa Happo, Artoni Kevin R. Ang, Yuta Yamamoto, Halubai Sekhar, Ai I. Osaka, Koichi Hayashi, Hironori Fujisawa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract A intermediate multidomain state and large crystallographic tilting of 1.78° for the (hh0)pc planes of a (001)pc-oriented single-domain Mn-doped BiFeO3 (BFMO) thin film were found when an electric field was applied along the [110]pc directi
Externí odkaz:
https://doaj.org/article/3737d0347ad243ad8886c650d9bb09c7
Autor:
Ritsuko Eguchi, Halubai Sekhar, Koji Kimura, Hirokazu Masai, Naohisa Happo, Mitsuki Ikeda, Yuki Yamamoto, Masaki Utsumi, Hidenori Goto, Yasuhiro Takabayashi, Hiroo Tajiri, Koichi Hayashi, Yoshihiro Kubozono
Publikováno v:
ACS Omega, Vol 9, Iss 19, Pp 21287-21297 (2024)
Externí odkaz:
https://doaj.org/article/5327b7c2a5f3484e8bf3aa9b136f6163
Autor:
Artoni Kevin R. Ang, Yasufumi Umena, Ayana Sato-Tomita, Naoya Shibayama, Naohisa Happo, Riho Marumi, Yuta Yamamoto, Koji Kimura, Naomi Kawamura, Yu Takano, Tomohiro Matsushita, Yuji C. Sasaki, Jian-Ren Shen, Kouichi Hayashi
Publikováno v:
Journal of Synchrotron Radiation, Vol 30, Iss 2, Pp 368-378 (2023)
X-ray fluorescence holography (XFH) is a powerful atomic resolution technique capable of directly imaging the local atomic structure around atoms of a target element within a material. Although it is theoretically possible to use XFH to study the loc
Externí odkaz:
https://doaj.org/article/04c7cbec2a3d47d0a2d93dbfe96f4b5b
Autor:
Mamoru Kitaura, Artoni Kevin R. Ang, Yuta Yamamoto, Naohisa Happo, Koji Kimura, Kouichi Hayashi, Shinta Watanabe, Yuui Yokota, Yuji Ohashi, Kei Kamada, Akira Yoshikawa, Hisanori Yamane, Akimasa Ohnishi
Publikováno v:
Frontiers in Materials, Vol 9 (2022)
The atomic positions and displacements of atoms around the Ta atom in piezoelectric materials Ca3TaGa3Si2O7 (CTGS) and Ca3TaGa1.5Al1.5Si2O7 (CTGAS) were investigated at 100 K by Ta-Lα X-ray fluorescence holography (XFH). The experimental atomic imag
Externí odkaz:
https://doaj.org/article/91ff280f451d4809a4d671ff63ba90b7
Autor:
Kei Hayashi, Wataru Saito, Kazuya Sugimoto, Kenji Ohoyama, Kouichi Hayashi, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Yuzuru Miyazaki
Publikováno v:
AIP Advances, Vol 11, Iss 2, Pp 029903-029903-1 (2021)
Externí odkaz:
https://doaj.org/article/89c69739f2df494ebc252068214eec8e
Autor:
Kei Hayashi, Wataru Saito, Kazuya Sugimoto, Kenji Ohoyama, Kouichi Hayashi, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura, Yuzuru Miyazaki
Publikováno v:
AIP Advances, Vol 10, Iss 3, Pp 035115-035115-7 (2020)
Mg2Si is a potential thermoelectric (TE) material that can directly convert waste energy into electricity. In expectation of improving its TE performance by increasing electron carrier concentration, the element boron (B) is doped in Mg2Si single cry
Externí odkaz:
https://doaj.org/article/2d4e5e1af193427a992df5e94b245ef0
Autor:
Koji Kimura, Daisuke Egusa, Koji Hagihara, Naohisa Happo, Naomi Kawamura, Hiroo Tajiri, Kouichi Hayashi, Eiji Abe
Publikováno v:
MATERIALS TRANSACTIONS. 64:750-755
Autor:
Ai Suzuki, Yanting Zhang, Mitsuki Ikeda, Yuki Yamamoto, Ritsuko Eguchi, Hidenori Goto, Kaisei Yamamoto, Naohisa Happo, Koji Kimura, Kouichi Hayashi, Hirofumi Ishii, Yoshihiro Kubozono
Publikováno v:
The Journal of Physical Chemistry C. 126:21405-21413
Autor:
Akira Sasahara, Koji Kimura, Hanggara Sudrajat, Naohisa Happo, Kouichi Hayashi, Hiroshi Onishi
Publikováno v:
The Journal of Physical Chemistry C. 126:19745-19755
Autor:
Yuto Inoue, Koji Kimura, Masato Maruyama, Naohisa Happo, Toru Asaka, Makoto Iwata, Tomohiro Matsushita, Koichi Hayashi
Publikováno v:
e-Journal of Surface Science and Nanotechnology.