JOPSS - Search Results

Journal Articles

Local moments in the heterogeneous electronic state of Cd-substituted CeCoIn; NQR relaxation rates

Sakai, Hironori; Ronning, F.*; Hattori, Takanori; Tokunaga, Yo; Kambe, Shinsaku; Zhu, J.-X.*; Wakeham, N.*; Yasuoka, Hiroshi; Bauer, E. D.*; Thompson, J. D.*

Journal of Physics; Conference Series, 807(3), p.032001_1 - 032001_6, 2017/04

https://doi.org/10.1088/1742-6596/807/3/032001

Times Cited Count：3 Percentile：68.62(Physics, Condensed Matter)

We have used nuclear quadrupole resonance (NQR) to probe microscopically the response of a prototypical quantum critical metal CeCoIn to substitutions of small amounts of Cd for In. Approximately half of the Cd substituents induce local Ce moments in their close proximity, as observed by site-dependent longitudinal nuclear spin relaxation rates . To reaffirm that localized moments are induced around the Cd substituents, we find a Gaussian spin-echo decay rate $1/T_{rm 2G}$ of transverse nuclear spin relaxation. Further, $T_1T/T_{rm 2G}^2$ for the NQR subpeak is found to be proportional to temperatures, again indicating local moments fluctuations around the Cd substituents, while that for the NQR main peak shows a $T^{0.7}$ -dependence. The latter temperature dependence is close to 0.75 in pure CeCoIn and indicates that the bulk electronic state is located close to a two dimensional quantum critical instability.

Journal Articles

Neutron scattering study on UGa $_{5}$ and NpGa $_{5}$

Metoki, Naoto

Journal of the Physical Society of Japan, 75(Suppl.), p.24 - 29, 2006/08

no abstracts in English

Journal Articles

Neutron scattering study on the field-induced antiferro-quadrupolar ordering in the heavy fermion superconductor PrOs $_{4}$ Sb $_{12}$

Metoki, Naoto; Kaneko, Koji; Araki, Shingo; Kogi, Masafumi*; Iwasa, Kazuaki*; Kuwahara, Keitaro*; Bernhoeft, N.*; Mignot, J.-M.*; Gukasov, A.*; Sato, Hideyuki*; et al.

Journal of Magnetism and Magnetic Materials, 272-276(Suppl.), p.e91 - e92, 2004/05

https://doi.org/10.1016/j.jmmm.2003.11.315

Times Cited Count：1 Percentile：7.12(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Unusual antiferromagnetic properties affected by antiferroquadrupolar interaction in TbB $_{2}$ C $_{2}$

Kaneko, Koji; Metoki, Naoto; Oyama, Kenji*; Onodera, Hideya*; Yamaguchi, Yasuo*

Journal of Magnetism and Magnetic Materials, 272-276(Suppl.), p.e375 - e376, 2004/05

https://doi.org/10.1016/j.jmmm.2003.11.301

Times Cited Count：0 Percentile：0(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Evidence for magnetic-field-induced quadrupolar ordering in the heavy-fermion superconductor PrOs $_{4}$ Sb $_{12}$

Kogi, Masafumi*; Iwasa, Kazuaki*; Nakajima, Motoki*; Metoki, Naoto; Araki, Shingo; Bernhoeft, N.*; Mignot, J.-M.*; Gukasov, A.*; Sato, Hideyuki*; Aoki, Yuji*; et al.

Journal of the Physical Society of Japan, 72(5), p.1002 - 1005, 2003/05

https://doi.org/10.1143/JPSJ.72.1002

Times Cited Count：199 Percentile：97.23(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Preliminary experiments on the separation of perfluorocompounds by continuous circulation gas chromatography

Tanzawa, Sadamitsu; Hiroki, Seiji; Abe, Tetsuya; Futatsuki, Takashi*; Tajima, Yoshinori*

Shinku, 46(1), p.44 - 48, 2003/01

https://doi.org/10.3131/jvsj.46.44

no abstracts in English

Journal Articles

Mssbauer spectroscopic studies of $^{237}$ Np in aqueous solutions

Nakada, Masami; Masaki, Nobuyuki; Yamashita, Toshiyuki

Journal of Nuclear Science and Technology, 39(Suppl.3), p.426 - 428, 2002/11

http://www.tandfonline.com/doi/abs/10.1080/00223131.2002.10875498

no abstracts in English

Journal Articles

$^{238}$ U Mssbauer study on the 5f-quadrupoles in uranium-based intermetallics

Tsutsui, Satoshi*; Nakada, Masami; Nasu, Saburo*; Homma, Tetsuo*; Tokiwa, Yoshifumi; Aoki, Dai*; Wisniewski, P.*; Haga, Yoshinori; Onuki, Yoshichika

Hyperfine Interactions, 141/142(1-4), p.237 - 242, 2002/06

https://doi.org/10.1023/A:1021281315015

Times Cited Count：1 Percentile：8.14(Physics, Atomic, Molecular & Chemical)

We have determined the distribution of the 5f-quadrupoles and detected the 5f-quadrupole order in the uranium intermetallics, uranium dipnictides and UPd, with $^{238}$ Mo"ssbauer spectroscopy. We have declared that the distribution of the 5f-quadrupoles depends on the magnetic sequence in uranium dipnictides. The distribution of the 5f-quadrupole is spherical in UBi, while those are oblate within c-plane in UP, UAs and USb. We have observed the sudden drop of the recoil-free fraction above the transition temperature of the quadrupole order in UPd. The present result suggests the change of the phonon states due to the quadrupole order in this compound.

Journal Articles

First-order phase transition in UO $_{2}$ ; $^{235}$ U and $^{17}$ O NMR study

Ikushima, Kenji; Tsutsui, Satoshi; Haga, Yoshinori; Yasuoka, Hiroshi; Walstedt, R. E.; Masaki, Nobuyuki; Nakamura, Akio; Nasu, Saburo*; Onuki, Yoshichika

Physical Review B, 63(10), p.104404_1 - 104404_11, 2001/03

https://doi.org/10.1103/PhysRevB.63.104404

Times Cited Count：85 Percentile：94.08(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles