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Komeno, Akira; Kato, Masato; Hirooka, Shun; Sunaoshi, Takeo*
Materials Research Society Symposium Proceedings, Vol.1444, p.85 - 89, 2012/09
Times Cited Count：11 Percentile：97.09(Materials Science, Multidisciplinary)Kambe, Shinsaku; Sakai, Hironori; Tokunaga, Yo
Materials Research Society Symposium Proceedings, Vol.1444, p.165 - 168, 2012/09
Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)In 
-wave unconventional superconductors, superconducting Cooper pairs are believed to be formed via magnetic fluctuations. In fact, superconducting transition temperature 
roughly correlates with antiferromagnetic spin fluctuation energy in -wave unconventional superconductors including high cuprates. In addition to this correlation, the superconducting pairing symmetry and the magnetic anisotropy of the normal state are found empirically to be strongly correlated in 
-electron unconventional superconductors having crystallographic symmetry lower than cubic. In antiferromagnetic systems, unconventional superconductivity appears with singlet (-wave) pairing for cases of XY anisotropy. In contrast, in ferromagnetic systems, unconventional superconductivity with triplet (e.g. 
-wave) pairing appears for cases of Ising anisotropy. In this report, the origin of XY anisotropy is discussed in terms of the angler momentum character 
for each Fermi surfaces.
and zircalloy-2Kato, Masato; Uchida, Teppei; Hirooka, Shun; Akashi, Masatoshi; Komeno, Akira; Morimoto, Kyoichi
Materials Research Society Symposium Proceedings, Vol.1444, p.91 - 96, 2012/09
Times Cited Count：1 Percentile：53.21(Materials Science, Multidisciplinary)
and zircalloy-2Hirooka, Shun; Akashi, Masatoshi; Uchida, Teppei; Morimoto, Kyoichi; Kato, Masato
Materials Research Society Symposium Proceedings, Vol.1444, p.97 - 101, 2012/09
Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)Tokunaga, Yo; Sakai, Hironori; Kambe, Shinsaku; Chudo, Hiroyuki; Osaka, Masahiko; Miwa, Shuhei; Nishi, Tsuyoshi; Nakada, Masami; Ito, Akinori; Homma, Yoshiya*
Materials Research Society Symposium Proceedings, Vol.1444, p.149 - 158, 2012/00
Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)Besides the importance of AnO series (An; U, Np, Pu, Am) as a nuclear fuel, the magnetic properties of these compounds at low temperatures are particularly interesting. Their surprisingly varied physical properties continue to be of interest for both theory and experiment. In this study, we have performed NMR studies for the series of actinide dioxides. On the basis of 
O-NMR studies, exotic magnetic orderings associated with multipole degrees of freedom on 5 electrons have been identified in UO (dipolar + quadrupolar ordering) and NpO (octupolar + quadrupolar ordering), in contrast with the non-magnetic ground state of PuO. In AmO, our O-NMR data provide the first microscopic evidence for a phase transition as a bulk property in this system.
