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Kim, H.*; Yoshida, Yasuo*; Lee, C.-C.*; Chang, T.-R.*; Jeng, H.-T.*; Lin, H.*; Haga, Yoshinori; Fisk, Z.*; Hasegawa, Yukio*
Science Advances (Internet), 3(9), p.eeao0362_1 - eeao0362_5, 2017/09
Times Cited Count：11 Percentile：61.65(Multidisciplinary Sciences)Kim, H.*; Lin, S.-Z.*; Graf, M.*; Miyata, Yoshinori*; Nagai, Yuki; Kato, Takeo*; Hasegawa, Yukio*
Physical Review Letters, 117(11), p.116802_1 - 116802_5, 2016/09
Times Cited Count：21 Percentile：75.17(Physics, Multidisciplinary)no abstracts in English
Kawakami, Takuto*; Nagai, Yuki; Yoshizawa, Shunsuke*; Kim, H.*; Hasegawa, Yukio*; Nakayama, Tomonobu*; Uchihashi, Takashi*; Hu, X.*
Journal of Physics; Conference Series, 568(2), p.022022_1 - 022022_5, 2014/12
Times Cited Count：2 Percentile：67.14(Physics, Applied)no abstracts in English
)-In using a scanning tunneling microscopeYoshizawa, Shunsuke*; Kim, H.*; Kawakami, Takuto*; Nagai, Yuki; Nakayama, Tomonobu*; Hu, X.*; Hasegawa, Yukio*; Uchihashi, Takashi*
Physical Review Letters, 113(24), p.247004_1 - 247004_5, 2014/12
Times Cited Count：68 Percentile：91.89(Physics, Multidisciplinary)We have studied the superconducting Si(111)-(
)-In surface using a 
He-based low-temperature scanning tunneling microscope. Zero-bias conductance images taken over a large surface area reveal that vortices are trapped at atomic steps after magnetic fields are applied. The crossover behavior from Pearl to Josephson vortices is clearly identified from their elongated shapes along the steps and significant recovery of superconductivity within the cores. Our numerical calculations combined with experiments clarify that these characteristic features are determined by the relative strength of the interterrace Josephson coupling at the atomic step.
Kimura, Akihiro; Tanimoto, Masataka; Ishida, Takuya; Tsuchiya, Kunihiko; Hasegawa, Yoshio*; Hishinuma, Yukio*; Suzuki, Masashi*
JAEA-Technology 2011-012, 17 Pages, 2011/06
JAEA-Technology-2011-012.pdf:1.72MBJP, 2010-263801 Patent publication (In Japanese)
PZC (Poly-Zirconium Compound) was developed as adsorbent of molybdenum for 
Mo-
Tc generator. However, PZC has some faults. So, new adsorbent based on titanium (PTC), was developed for getting rid of faults. This time, Mo adsorption and Tc elution tests with PZC and PTC were carried out. As a result, the Mo adsorption performance of the PTC was lower than PZC, on the other hand, Tc elution performance of the PTC was higher than PZC.
Matsuda, Iwao*; Nakamura, Fumitaka*; Kubo, Keisuke*; Hirahara, Toru*; Yamazaki, Shiro*; Choi, W. H.*; Yeom, H. W.*; Narita, Hisashi*; Fukaya, Yuki; Hashimoto, Mie*; et al.
Physical Review B, 82(16), p.165330_1 - 165330_6, 2010/10
Times Cited Count：9 Percentile：40.49(Materials Science, Multidisciplinary)no abstracts in English
Nishio, Takahiro*; An, Toshu*; Nomura, Atsushi*; Miyachi, Kosuke*; Eguchi, Toyoaki*; Sakata, Hideaki*; Lin, S.*; Hayashi, Nobuhiko; Nakai, Noriyuki; Machida, Masahiko; et al.
Physical Review Letters, 101(16), p.167001_1 - 167001_4, 2008/10
Times Cited Count：98 Percentile：93.15(Physics, Multidisciplinary)Superconductivity of nanosized Pb-island structures whose radius is 0.8 to 2.5 times their coherence length was studied under magnetic fields using low-temperature scanning tunneling microscopy and spectroscopy. Spatial profiles of superconductivity were obtained by conductance measurements at zero-bias voltage. Critical magnetic fields for vortex penetration and expulsion and for superconductivity breaking were measured for each island. The critical fields depending on the lateral size of the islands and existence of the minimum lateral size for vortex formation were observed.
Kondo, Keietsu; Nemoto, Yoshiyuki; Miwa, Yukio; Kaji, Yoshiyuki; Tsukada, Takashi; Nagai, Yasuyoshi*; Hasegawa, Masayuki*; Okubo, Tadakatsu*; Hono, Kazuhiro*
JAEA-Research 2006-013, 39 Pages, 2006/12
JAEA-Research-2006-013.pdf:4.57MB
There has been an increasing number of stress corrosion cracking (SCC) incidents on low carbon austenitic stainless steels used in boiling water reactor (BWR) environments. To reveal the acceleration factor of intergranular crack propagation from the viewpoint of solute distribution in stainless steels, the material extracted from a core shroud of Japanese BWR was analyzed by the three dimensional atom probe (3DAP), which has the highest spatial resolution among the various microanalytical techniques. It was revealed by statistical analysis on 3DAP data that solute elements, such as Fe, Cr, Ni, Mo, Mn, Si, are randomly distributed in matrix of the shroud material. This result means that solute was not segregated or precipitated and was not form spinodal decomposition during the service. The concentration profile in the vicinity of grain boundary obtained from 3DAP dataset showed the random distribution of Cr. This result shows that degradation of the corrosion resistance induced by depletion of Cr was not responsible for the crack propagation along grain boundaries in low carbon stainless steel. On the other hand, enrichment of Mo and Si was observed at grain boundary. The width of the enriched zone was about 2 nm across the grain boundary, and the concentration of those elements could be much higher than the concentration obtained by field emission transmission electron microscopy/energy dispersive X-ray spectroscopy (FE-TEM/EDS). Therefore, it is necessary to study about the effects of enrichment of Mo and Si as a potential contributor to SCC.
Hino, Ryutaro; Yokomizo, Hideaki; Yamazaki, Yoshishige; Hasegawa, Kazuo; Suzuki, Hiromitsu; Soyama, Kazuhiko; Hayashi, Makoto*; Haga, Katsuhiro; Kaminaga, Masanori; Sudo, Yukio*; et al.
Nihon Kikai Gakkai-Shi, 107(1032), p.851 - 882, 2004/11
no abstracts in English
Nakashima, Hiroshi; Sasamoto, Nobuo; Sakamoto, Yukio; Kusano, Joichi; Hasegawa, Kazuo; Handa, Hiroyuki*; Hayashi, Katsumi*; Yamada, Kobun*; Abe, Teruo*
Journal of Nuclear Science and Technology, 37(Suppl.1), p.870 - 874, 2000/03
no abstracts in English
Oyama, Yukio; ; Watanabe, Yukinobu*; Kawano, Toshihiko*; Numajiri, M.*; Ueki, Kotaro*; ; Yamano, Naoki*; Kosako, Kazuaki*; ; et al.
JAERI-Review 98-020, 130 Pages, 1998/11
no abstracts in English
Yoshida, Kiyoshi; Nishi, Masataka; Tsuji, Hiroshi; Sasaki, Takashi*; Yasukawa, Yukio*; Tsukamoto, Hideo*; ; ; ; Hasegawa, Mitsuru*
Nihon Genshiryoku Gakkai-Shi, 37(10), p.938 - 947, 1995/00
Times Cited Count：2 Percentile：28.03(Nuclear Science & Technology)no abstracts in English
Hiue, Hisaaki*; Sugimoto, Makoto; Nakajima, Hideo; Hasegawa, Mitsuru*; Yasukawa, Yukio*; Yoshida, Kiyoshi; ;
JAERI-M 92-127, 33 Pages, 1992/09
no abstracts in English
Sugimoto, Makoto; Yoshida, Kiyoshi; Hasegawa, Mitsuru*; Koizumi, Koichi; Nakajima, Hideo; ; ; ; Yasukawa, Yukio*; Sasaki, Takashi*; et al.
Fusion Technology 1990, p.1530 - 1534, 1991/00
no abstracts in English
Ara, Hiroshige*; Fukumitsu, Kenji*; Iizuka, Yunosuke*; Ishii, Takashi*; Izumiya, Yasushi*; Imazu, Masanori*; Utsugida, Yoshizo*; Hasegawa, Makoto*; Maeda, Masaya*; Yabe, Yukio*; et al.
PNC TJ199 84-04VOL1, 20 Pages, 1984/03
PNC-TJ199-84-04VOL1.pdf:0.88MB
None
Pirozhkov, A. S.; Kando, Masaki; Esirkepov, T. Z.; Pikuz, T.; Faenov, A. Ya.*; Ogura, Koichi; Hayashi, Yukio; Kotaki, Hideyuki; Ragozin, E. N.*; Neely, D.*; et al.
no journal, ,
Kando, Masaki; Pirozhkov, A. S.; Esirkepov, T. Z.; Pikuz, T.; Faenov, A.*; Ogura, Koichi; Hayashi, Yukio; Kotaki, Hideyuki; Ragozin, E. N.*; Neely, D.*; et al.
no journal, ,
Pirozhkov, A. S.; Kando, Masaki; Esirkepov, T. Z.; Pikuz, T.; Faenov, A. Ya.*; Ogura, Koichi; Hayashi, Yukio; Kotaki, Hideyuki; Ragozin, E. N.*; Neely, D.*; et al.
no journal, ,
Hasegawa, Yoshio*; Hishinuma, Yukio*; Amamoto, Ippei; Yokozawa, Takuma; Kobayashi, Hidekazu; Taguchi, Tomitsugu; Yamakawa, Atsushi*; Suzuki, Masashi*
no journal, ,
no abstracts in English
Yamakawa, Atsushi*; Amamoto, Ippei; Yokozawa, Takuma; Kobayashi, Hidekazu; Taguchi, Tomitsugu; Hasegawa, Yoshio*; Hishinuma, Yukio*
no journal, ,
no abstracts in English
