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(BiTe
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superlattice films by Te desorption from a pristine BiTe filmKusaka, Shotaro*; Sasaki, Taisuke*; Sumida, Kazuki; Ichinokura, Satoru*; Ideta, Shinichiro*; Tanaka, Kiyohisa*; Hono, Kazuhiro*; Hirahara, Toru*
Applied Physics Letters, 120(17), p.173102_1 - 173102_5, 2022/04
Times Cited Count：2 Percentile：34.67(Physics, Applied)Hirahara, Toru*; Otrokov, M. M.*; Sasaki, Taisuke*; Sumida, Kazuki*; Tomohiro, Yuta*; Kusaka, Shotaro*; Okuyama, Yuma*; Ichinokura, Satoru*; Kobayashi, Masaki*; Takeda, Yukiharu; et al.
Nature Communications (Internet), 11, p.4821_1 - 4821_8, 2020/09
Times Cited Count：41 Percentile：93.11(Multidisciplinary Sciences)Sakanaka, Shogo*; Ago, Tomonori*; Enomoto, Atsushi*; Fukuda, Shigeki*; Furukawa, Kazuro*; Furuya, Takaaki*; Haga, Kaiichi*; Harada, Kentaro*; Hiramatsu, Shigenori*; Honda, Toru*; et al.
Proceedings of 11th European Particle Accelerator Conference (EPAC '08) (CD-ROM), p.205 - 207, 2008/06
Future synchrotron light sources based on the energy-recovery linacs (ERLs) are expected to be capable of producing super-brilliant and/or ultra-short pulses of synchrotron radiation. Our Japanese collaboration team is making efforts for realizing an ERL-based hard X-ray source. We report recent progress in our R&D efforts.
electrons system URuSi under high fieldsSakai, Hironori; Higa, Nonoka; Hattori, Taisuke; Tokunaga, Yo; Haga, Yoshinori; Kambe, Shinsaku; Goto, Takayuki*; Hirata, Michihiro*; Awaji, Satoshi*; Sasaki, Takahiko*
no journal, ,
We have performed 
Si nuclear magnetic resonance (NMR) experiments using single crystal of strongly correlated 
electrons system URuSi under high external field of about 24 T. The temperature dependence of NMR shift in the paramagnetic state varies with external fields. The temperature and field dependences of NMR shifts resembles those of magnetic susceptibility.
Abe, Yosuke; Sasaki, Taisuke*; Yamashita, Shinichiro; Okubo, Nariaki; Ukai, Shigeharu
no journal, ,
In Fe-Cr-Al alloys, which are being developed as accident-resistant fuel cladding for light water reactors, it is a challenge to accurately predict the precipitation behavior of the Cr-rich embrittlement phase (
phase), which occurs at relatively low temperature irradiations. However, the formation behavior of the phase under neutron irradiation is not well understood due to global limitations of irradiation reactors. In this study, the influencing factors (Cr concentration, Al concentration, and damage rate) on phase formation were quantitatively evaluated by combining systematic irradiation experiments for 14 types of alloys at three levels of damage rate and multiple regression analysis. The results also contributed to the development of more accurate 
/(+) phase boundary curves based on Cr and Al concentrations, which are important in actual alloy design.
Abe, Yosuke; Sasaki, Taisuke*; Okubo, Nariaki; Yamashita, Shinichiro; Ukai, Shigeharu
no journal, ,
In Fe-Cr-Al (ODS) alloys being developed as accident tolerant fuel cladding for light water reactors, it is a challenge to understand and predict the precipitation behaviour of the Cr-rich embrittlement phase (
phase), which occurs at relatively low irradiation temperatures, and its effect on mechanical properties. Therefore, in this study, the 
phase boundary was rationally defined on the alloy state diagram under varying conditions such as temperature and aging time by combining thermal aging experiments on Fe-Cr-Al alloys with systematically varying Cr and Al compositions and machine learning models. The regression model was applied to the 3DAP database to evaluate the relationship between the estimated increase in Vickers hardness and the hardening mechanism due to the phase. The results suggest that the hardening due to the phase can be explained by a particle cutting mechanism.
