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Ueno, Yasuhiro*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; Ito, Takashi; Iwasaki, Masahiko*; et al.
Hyperfine Interactions, 238(1), p.14_1 - 14_6, 2017/11
Times Cited Count:3 Percentile:86.59Strasser, P.*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; Ito, Takashi; Iwasaki, Masahiko*; et al.
Hyperfine Interactions, 237(1), p.124_1 - 124_9, 2016/12
Times Cited Count:7 Percentile:91.29Adachi, Taihei*; Ikedo, Yutaka*; Nishiyama, Kusuo*; Yabuuchi, Atsushi*; Nagatomo, Takashi*; Strasser, P.*; Ito, Takashi; Higemoto, Wataru; Kojima, Kenji*; Makimura, Shunsuke*; et al.
JPS Conference Proceedings (Internet), 8, p.036017_1 - 036017_4, 2015/09
Miyake, Yasuhiro*; Shimomura, Koichiro*; Kawamura, Naritoshi*; Strasser, P.*; Makimura, Shunsuke*; Koda, Akihiro*; Fujimori, Hiroshi*; Nakahara, Kazutaka*; Takeshita, Soshi*; Kobayashi, Yasuo*; et al.
Journal of Physics; Conference Series, 225, p.012036_1 - 012036_7, 2010/06
Times Cited Count:8 Percentile:92.74Strasser, P.*; Shimomura, Koichiro*; Koda, Akihiro*; Kawamura, Naritoshi*; Fujimori, Hiroshi*; Makimura, Shunsuke*; Kobayashi, Yasuo*; Nakahara, Kazutaka*; Kato, Mineo*; Takeshita, Soshi*; et al.
Journal of Physics; Conference Series, 225, p.012050_1 - 012050_8, 2010/06
Times Cited Count:12 Percentile:95.24Higemoto, Wataru; Ito, Takashi; Ninomiya, Kazuhiko; Heffner, R.*; Shimomura, Koichiro*; Nishiyama, Kusuo*; Miyake, Yasuhiro*
Journal of Physics; Conference Series, 225, p.012012_1 - 012012_4, 2010/06
Times Cited Count:2 Percentile:67.03The Japan Atomic Energy Agency (JAEA)-Advanced Science Research Center (ASRC) has developed experimental equipment at the J-PARC MLF muon science facility (MUSE) for muon spin rotation/relaxation experiments. We have extracted part of the muonbeam into a muon spectrometer constructed downstream from the Decay/Surface muon beam line. The current status of our project is discussed here.
Miyake, Yasuhiro*; Shimomura, Koichiro*; Kawamura, Naritoshi*; Strasser, P.*; Makimura, Shunsuke*; Koda, Akihiro*; Fujimori, Hiroshi*; Nakahara, Kazutaka*; Kadono, Ryosuke*; Kato, Mineo*; et al.
Physica B; Condensed Matter, 404(5-7), p.957 - 961, 2009/04
Times Cited Count:11 Percentile:47.94(Physics, Condensed Matter)The muon science facility (MUSE) is one of the experimental areas of the J-PARC. The MUSE facility is located in the Materials and Life Science Facility (MLF), which is a building integrated to include both neutron and muon science programs. Construction of the MLF building was started at the beginning of 2004, and was recently completed at the end of the 2006 fiscal year. We have been working on the installation of the beamline components, expecting the first muon beam in the autumn of 2008.
Sato, Hideyuki*; Aoki, Yuji*; Kikuchi, Daisuke*; Sugawara, Hitoshi*; Higemoto, Wataru; Oishi, Kazuki; Ito, Takashi; Heffner, R. H.; Saha, S. R.*; Koda, Akihiro*; et al.
Physica B; Condensed Matter, 404(5-7), p.749 - 753, 2009/04
Times Cited Count:5 Percentile:25.63(Physics, Condensed Matter)Wide varieties of strongly correlated electron phenomena are performed on the stage of a filled skutterudite structure. Especially when one of the players contains a plural number of 4f electrons, the orbital degrees of freedom play a major role as a new type of nonmagnetic and/or weak-magnetic phenomena. Several examples found in Pr- and Sm-based filled skutterudites are introduced in relation to muon spin relaxation experiments.
Higemoto, Wataru; Heffner, R. H.; Shimomura, Koichiro*; Nishiyama, Kusuo*; Miyake, Yasuhiro*
Nuclear Instruments and Methods in Physics Research A, 600(1), p.182 - 184, 2009/02
Times Cited Count:1 Percentile:12.39(Instruments & Instrumentation)At the J-PARC MLF muon science facility (MUSE), JAEA-ASRC is advancing the "SR project". In this project, the muon beam extraction part and the spectrometer will be installed to the downstream of the Decay/Surface muon beam line as a branch of the beam line. ASRC beam line is preparing for a muon spin rotation and relaxation (SR) experiment. Mainly, a positive surface muon beam (29MeV/c) will be used for the experiment. One of the main subject of the ASRC SR project is study of strongly correlated electron systems, especially f-electron systems. By using intense muon beam of MUSE, new insights for f-electron physics will be obtained.
Tokiwa, Kazuyasu*; Mikusu, Satoshi*; Higemoto, Wataru; Nishiyama, Kusuo*; Iyo, Akira*; Tanaka, Yasumoto*; Kotegawa, Hisashi*; Mukuda, Hidekazu*; Kitaoka, Yoshio*; Watanabe, Tsuneo*
Physica C, 460-462(2), p.892 - 895, 2007/09
Times Cited Count:3 Percentile:17.92(Physics, Applied)Zero- and longitudinal-field muon-spin rotation (ZF-SR and LF-SR) measurements were carried out on a multi-layered HgBaCaCuO (Hg-1245) superconductor with of 108 K. With decreasing temperature, the observed ZF-SR function changed from a Gaussian-type to an exponential-type below 60 K and zero field muon precession was also observed below 45 K. These SR signals are attributed to the development of the antiferromagnetic ordering in inner CuOplanes with a low carrier concentration. These results seem to indicate clear evidence that antiferromagnetism microscopically coexists with superconductivity in the Hg-1245 superconductor below 60 K.
Kikuchi, Hikomitsu*; Chiba, Meiro*; Fujii, Yutaka*; Yamamoto, Yuji*; Higemoto, Wataru; Nishiyama, Kusuo*
Journal of Magnetism and Magnetic Materials, 310(2, Part2), p.e400 - e402, 2007/03
Times Cited Count:0 Percentile:0(Materials Science, Multidisciplinary)H NMR and SR measurements on Ni(333-tet) (-N) (ClO), a gapless S=1 Heisenberg antiferromagnet with bond alternation, are measured. The spin lattice relaxation rate has anomaly at around 3 K without divergent behavior. The time spectra of SR are measured down to 1.7 K. A fast relaxation component develops below about 3 K, suggesting an occurrence of magnetic ordering. However, the ordering is found to have dynamical nature, since recovery of the asymmetry by applying longitudinal field was not observed.
Shimomura, Koichiro*; Kadono, Ryosuke*; Nishiyama, Kusuo*; Watanabe, Isao*; Suzuki, Takao*; Pratt, F.*; Oishi, Kazuki; Mizuta, Masashi*; Saito, Mineo*; Chow, K. H.*; et al.
Physica B; Condensed Matter, 376-377, p.444 - 446, 2006/04
Times Cited Count:1 Percentile:6.65(Physics, Condensed Matter)Miyake, Yasuhiro*; Nishiyama, Kusuo*; Kawamura, Naritoshi*; Makimura, Shunsuke*; Strasser, P.*; Shimomura, Koichiro*; Beveridge, J. L.*; Kadono, Ryosuke*; Fukuchi, Koichi*; Sato, Nobuhiko*; et al.
Physica B; Condensed Matter, 374-375, p.484 - 487, 2006/03
Times Cited Count:6 Percentile:31.27(Physics, Condensed Matter)The construction of the Materials and Life Science building was started in the beginning of the fiscal year of 2004. After commissioning of the accelerator and beam transport sections in 2008, muon beams will be available for users in 2009. In this letter, the latest construction status of the J-PARC Muon Science Facility is reported.
Sato, Koki*; Goko, Tatsuro*; Takeshita, Satoshi*; Hayashi, Yuko*; Arai, Juichiro*; Higemoto, Wataru; Nishiyama, Kusuo*; Nagamine, Kanetada*
Physica B; Condensed Matter, 374-375, p.40 - 43, 2006/03
Times Cited Count:4 Percentile:22.78(Physics, Condensed Matter)We have performed muon spin relaxation and resistivity measurements under high pressure in LaBaCuO with x=0.125 and 0.135. With increasing pressure, the superconducting critical temperature increases for both samples. Even by applying pressure, static magnetic order still exists. This result indicates the LTT structure is not always necessary for stabilizing the static magnetic order. However, the magnetic volume fraction estimated is reduced by applying pressure. The reduction of the magnetic volume fraction for x=0.125 is less than that for x=0.135. This means hole concentration is one of the important factors for the appearance of the static magnetic order.
Nishiyama, Kusuo*; Nishiyama, Sumie*; Shimomura, Koichiro*; Kubo, Kenya*; Maruta, Goro*; Higemoto, Wataru
Physica B; Condensed Matter, 374-375, p.433 - 436, 2006/03
Times Cited Count:2 Percentile:12.61(Physics, Condensed Matter)Squaric acid, a famous two-dimensional hydrogen-bonded system was studied by SR. From the temperature dependence of the muon spin relaxation rate as well as from the crystal axis dependences, different muon sites at low temperature and at high temperature were found. The nuclear dipole field was calculated for possible muon sites. At low temperature the muon attaches acceptor oxygen, while at 300 K the muon occupies the regular hydrogen sites.
Miyake, Yasuhiro*; Kawamura, Naritoshi*; Makimura, Shunsuke*; Strasser, P.*; Shimomura, Koichiro*; Nishiyama, Kusuo*; Beveridge, J. L.*; Kadono, Ryosuke*; Sato, Nobuhiko*; Fukuchi, Koichi*; et al.
Nuclear Physics B; Proceedings Supplements, 149, p.393 - 395, 2005/12
The J-PARC muon science experimental area is planned to be located in the integrated building of the facility for materials and life science study. One muon target will be installed upstream of the neutron target. The main feature of the facility is introduced.
Meigo, Shinichiro; Harada, Masahide; Konno, Chikara; Ikeda, Yujiro; Watanabe, Noboru; Sakamoto, Shinichi*; Muto, Suguru*; Miyake, Yasuhiro*; Nishiyama, Kusuo*; Shimomura, Koichiro*; et al.
JAERI-Conf 2001-002, p.314 - 324, 2001/03
no abstracts in English
Ito, Takashi; Higemoto, Wataru; Koda, Akihiro*; Shimomura, Koichiro*; Nishiyama, Kusuo*; Matsuzaki, Teiichiro*; Tomono, Dai*; Kobayashi, Yoji*; Sakaguchi, Tatsunori*; Kageyama, Hiroshi*
no journal, ,
no abstracts in English
Ito, Takashi; Higemoto, Wataru; Koda, Akihiro*; Shimomura, Koichiro*; Nishiyama, Kusuo*; Matsuzaki, Teiichiro*; Tomono, Dai*; Kobayashi, Yoji*; Sakaguchi, Tatsunori*; Kageyama, Hiroshi*
no journal, ,
no abstracts in English
Ito, Takashi; Higemoto, Wataru; Koda, Akihiro*; Nishiyama, Kusuo*; Shimomura, Koichiro*
no journal, ,
no abstracts in English