JOPSS - Search Results

Search Results: Records 1-20 displayed on this page of 29

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Journal Articles

Insight into Kondo screening in the intermediate-valence compound SmOsSb $_{12}$ uncovered by soft X-ray magnetic circular dichroism

Saito, Yuji; Fujiwara, Hidenori*; Yasui, Akira*; Kadono, Toshiharu*; Sugawara, Hitoshi*; Kikuchi, Daisuke*; Sato, Hideyuki*; Suga, Shigemasa*; Yamasaki, Atsushi*; Sekiyama, Akira*; et al.

Physical Review B, 102(16), p.165152_1 - 165152_8, 2020/10

https://doi.org/10.1103/PhysRevB.102.165152

Times Cited Count：1 Percentile：6.04(Materials Science, Multidisciplinary)

Journal Articles

Azimuthal correlations of electrons from heavy-flavor decay with hadrons in and Au+Au collisions at $sqrt{s_{NN}}$ = 200 GeV

Adare, A.*; Afanasiev, S.*; Aidala, C.*; Ajitanand, N. N.*; Akiba, Yasuyuki*; Al-Bataineh, H.*; Alexander, J.*; Aoki, Kazuya*; Aphecetche, L.*; Aramaki, Y.*; et al.

Physical Review C, 83(4), p.044912_1 - 044912_16, 2011/04

https://doi.org/10.1103/PhysRevC.83.044912

Times Cited Count：8 Percentile：49.7(Physics, Nuclear)

Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled collisions. Here we extend these studies to two particle correlations where one particle is an electron from the decay of a heavy flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interaction between heavy quarks and the quark-gluon matter. We find the away-side-jet shape and yield to be modified in Au+Au collisions compared to collisions.

Journal Articles

Suppression of time-reversal symmetry breaking superconductivity in Pr(Os $_{1-x}$ Ru)Sb $_{12}$ and Pr $_{1-y}$ LaOsSb $_{12}$

Shu, L.*; Higemoto, Wataru; Aoki, Yuji*; Hillier, A. D.*; Oishi, Kazuki*; Ishida, Kenji*; Kadono, Ryosuke*; Koda, Akihiro*; Bernal, O. O.*; MacLaughlin, D. E.*; et al.

Physical Review B, 83(10), p.100504_1 - 100504_4, 2011/03

https://doi.org/10.1103/PhysRevB.83.100504

Times Cited Count：34 Percentile：77.76(Materials Science, Multidisciplinary)

Zero-field muon spin relaxation experiments have been carried out in the Pr(Os $_{1-x}$ Ru)Sb $_{12}$ and Pr $_{1-y}$ LaOsSb $_{12}$ alloy systems to investigate broken time-reversal symmetry (TRS) in the superconducting state, signaled by the onset of a spontaneous static local magnetic field B. In both alloy series B initially decreases linearly with solute concentration. Ru doping is considerably more efficient than La doping, with a 50% faster initial decrease. The data suggest that broken TRS is suppressed for Ru concentration 0.6 but persists for essentially all La concentrations. Our data support a crystal-field excitonic cooper pairing mechanism for TRS-breaking superconductivity.

Journal Articles

Microscopic study of antiferromagnetic ground state and possible high-field ordered state in CeOsSb $_{12}$ using muon spin rotation and relaxation

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki*; Sato, Kazuhiko*; Aoki, Yuji*; Toda, Shizuka*; Kikuchi, Daisuke*; Sato, Hideyuki*; Baines, C.*

Physical Review B, 82(1), p.014420_1 - 014420_8, 2010/07

https://doi.org/10.1103/PhysRevB.82.014420

Times Cited Count：9 Percentile：40.66(Materials Science, Multidisciplinary)

An antiferromagnetic (AFM) ground state and a possible high-field ordered state in magnetic fields T of a filled-skutterudite compound CeOsSb $_{12}$ were investigated by the muon spin rotation and relaxation method. In a zero applied field, a spontaneous local filed due to the weak AFM ordering was observed below 1.6 K. The magnetic volume fraction gradually increases below 1.6 K with decreasing temperature, suggesting that this phase is sensitive to sample quality. The magnitude of the ordered dipole moment in the AFM state was estimated to be in the range from 0.11 to 0.17 /Ce at 0.1 K. In a field of 2 T applied along the [001] direction, clear anomalies in the muon Knight shift and line width were observed at 1.5 K, consistent with the phase transition scenario into the high-field ordered state suggested from specific heat, resistivity, elastic, and NMR anomalies.

Journal Articles

Pressure-induced antiferromagnetic order in filled skutterudite PrFe $_{4}$ P $_{12}$ studied by single-crystal high-pressure neutron diffraction

Osakabe, Toyotaka; Kuwahara, Keitaro*; Kawana, Daichi*; Iwasa, Kazuaki*; Kikuchi, Daisuke*; Aoki, Yuji*; Kogi, Masafumi*; Sato, Hideyuki*

Journal of the Physical Society of Japan, 79(3), p.034711_1 - 034711_7, 2010/03

https://doi.org/10.1143/JPSJ.79.034711

Times Cited Count：18 Percentile：68.73(Physics, Multidisciplinary)

Journal Articles

Possible low-energy excitations of multipoles in SmRuP $_{12}$ probed by muon spin relaxation

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki*; Heffner, R. H.; Nishida, Nobuhiko*; Sato, Kazuhiko*; Sugawara, Hitoshi*; Aoki, Yuji*; Kikuchi, Daisuke*; Sato, Hideyuki*

Physica B; Condensed Matter, 404(5-7), p.761 - 764, 2009/04

https://doi.org/10.1016/j.physb.2008.11.179

Times Cited Count：1 Percentile：6.09(Physics, Condensed Matter)

We report on detailed longitudinal field (LF) SR studies in SmRuP $_{12}$ in order to characterize magnetic fluctuations in a magnetically ordered state below $T_{rm MI}=16.5$ K. A magnitude and fluctuation rate of the fluctuating field are derived as functions of temperature from LF dependence of the longitudinal relaxation rate. Possible low-energy excitations of magnetic multipoles are discussed.

Journal Articles

Weak ferromagnetic ordering in the anomalous field-insensitive heavy-fermion state in SmOsSb $_{12}$

Aoki, Yuji*; Higemoto, Wataru; Tsunashima, Yoshino*; Yonezawa, Yuki*; Sato, Koki*; Koda, Akihiro*; Ito, Takashi; Oishi, Kazuki; Heffner, R. H.; Kikuchi, Daisuke*; et al.

Physica B; Condensed Matter, 404(5-7), p.757 - 760, 2009/04

https://doi.org/10.1016/j.physb.2008.11.180

Times Cited Count：4 Percentile：21.33(Physics, Condensed Matter)

Zero field (ZF) and transverse field (TF) muon spin relaxation and rotation (SR) study has been carried out in filled-skutterudite SmOsSb $_{12}$ in order to investigate the magnetically robust heavy-fermion (HF) state and the weak ferromagnetic anomaly. A large-amplitude oscillating signal appears in the ZF-SR spectra at low temperatures, confirming that the weak ferromagnetic anomaly is an intrinsic bulk property. Analysis reveals that the weak ferromagnetic moment is carried by itinerant heavy quasiparticles.

Journal Articles

Novel features in filled skutterudites containing rare-earth elements with a plural number of 4f-electrons

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

https://doi.org/10.1016/j.physb.2008.11.182

Times Cited Count：5 Percentile：25.59(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.

Journal Articles

Magnetic properties of SmRu $_{4}$ P $_{12}$ probed by SR

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki; Heffner, R. H.; Nishida, Nobuhiko*; Sato, Kazuhiko*; Sugawara, Hitoshi*; Aoki, Yuji*; Kikuchi, Daisuke*; Sato, Hideyuki*

Journal of Physics and Chemistry of Solids, 68(11), p.2072 - 2075, 2007/11

https://doi.org/10.1016/j.jpcs.2007.08.029

Times Cited Count：1 Percentile：7.46(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

Muon spin relaxation and hyperfine-enhanced $^{141}$ Pr nuclear spin dynamics in Pr(Os,Ru)Sb $_{12}$ and (Pr,La)OsSb $_{12}$

Shu, L.*; MacLaughlin, D. E.*; Aoki, Yuji*; Tsunashima, Yoshino*; Yonezawa, Yuki*; Sanada, Shotaro*; Kikuchi, Daisuke*; Sato, Hideyuki*; Heffner, R. H.; Higemoto, Wataru; et al.

Physical Review B, 76(1), p.014527_1 - 014527_8, 2007/07

https://doi.org/10.1103/PhysRevB.76.014527

Times Cited Count：21 Percentile：64.75(Materials Science, Multidisciplinary)

Journal Articles

Evolution of local magnetic state in SmRuP $_{12}$ probed by muon spin relaxation

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki; Fujimoto, Tatsuya*; Heffner, R. H.; Nishida, Nobuhiko*; Sato, Kazuhiko*; Sugawara, Hitoshi*; Aoki, Yuji*; Kikuchi, Daisuke*; et al.

Journal of the Physical Society of Japan, 76(5), p.053707_1 - 053707_4, 2007/05

https://doi.org/10.1143/JPSJ.76.053707

Times Cited Count：27 Percentile：74.93(Physics, Multidisciplinary)

A filled skutterudite compound SmRuP $_{12}$ shows metal-insulatortransition at $T_{rm MI}$ =16.5K with magnetic anomaly. A possibility of magnetic octupole ordering has been discussed on the basis of multipole degrees of freedom belonging to thecrystalline-electric-field ground state. We investigated local magnetic states in the ordered state by using the muon spin relaxation method. An increase of muon spin relaxation rate was detected in zeroapplied field just below $T_{rm MI}$ , indicating time-reversal-symmetry breaking in the ordered state. This result suggests that the order parameter includes magnetic octupole and/ordipole. Magnitude of the internal field at the muon site monotonically increases with decreasing temperature, growing steeply below $T^{prime}$ =3K. The longitudinal relaxation rate has a maximum at around $T^{prime}$ , suggesting suppression of magnetic fluctuations. We discussed these experimental facts on the basis of the multipoledegrees of freedom.

Journal Articles

Knight shift measurements in the superconducting state of Pr $_{1-x}$ LaOsSb $_{12}$ (X=0.4) probed by SR

Higemoto, Wataru; Aoki, Yuji*; Oishi, Kazuki; Ito, Takashi; Heffner, R. H.; Saha, S. R.*; Koda, Akihiro*; Sato, Hideyuki*; Kadono, Ryosuke*; Kikuchi, Daisuke*; et al.

Journal of Magnetism and Magnetic Materials, 310(2, Part1), p.620 - 622, 2007/03

no abstracts in English

Journal Articles

Time reversal symmetry breaking in superconducting (Pr,La)OsSb $_{12}$ and Pr(Os,Ru)Sb $_{12}$

Shu, L.*; Higemoto, Wataru; Aoki, Yuji*; Frederick, N. A.*; Yuhasz, W. M.*; Heffner, R. H.; Oishi, Kazuki; Ishida, Kenji*; Kadono, Ryosuke*; Koda, Akihiro*; et al.

Journal of Magnetism and Magnetic Materials, 310(2, Part1), p.551 - 553, 2006/11

Journal Articles

Oxygen K-edge fine structure of Tl $_{2}$ Ba $_{2}$ Ca $_{n-1}$ Cu $_{n}$ O $_{2n+4}$ studied by electron energy loss spectroscopy

*; *; *; *; *; Hojo, Kiichi; Soga, Takeshi; Furuno, Shigemi;

Physica C, 165, p.321 - 324, 1990/00

https://doi.org/10.1016/0921-4534(90)90211-V

Times Cited Count：8 Percentile：50.8(Physics, Applied)

no abstracts in English

Journal Articles

In-situ observation of oxygen K-edge fine sructure of YBa $_{2}$ Cu $_{3}$ O $_{7-y}$ by EELS

*; *; *; *; *; Furuno, Shigemi; Hojo, Kiichi; Soga, Takeshi;

Journal of Electron Microscopy, 38(2), p.155 - 157, 1989/00

no abstracts in English

Journal Articles

Oxygen K-edge fine structure of TlBa $_{2}$ Ca $_{1-x}$ Y $_{x}$ Cu $_{2}$ O $_{7}$ studied by electron energy loss spectroscopy

*; *; *; *; *; *; Hojo, Kiichi; Soga, Takeshi; Furuno, Shigemi;

Physica C, 159, p.794 - 796, 1989/00

https://doi.org/10.1016/0921-4534(89)90151-2

Times Cited Count：20 Percentile：72.74(Physics, Applied)

no abstracts in English

Oral presentation

Single-crystal neutron diffraction on the pressure-induced insulating phase of PrFe $_{4}$ P $_{12}$

Kawana, Daichi*; Osakabe, Toyotaka; Kuwahara, Keitaro*; Kikuchi, Daisuke*; Aoki, Yuji*; Kogi, Masafumi*; Sato, Hideyuki*

no journal, ,

no abstracts in English

Oral presentation

Single-crystal neutron diffraction on the pressure-induced insulating phase of PrFe $_{4}$ P $_{12}$ , 2

Osakabe, Toyotaka; Kawana, Daichi*; Kuwahara, Keitaro*; Iwasa, Kazuaki*; Kikuchi, Daisuke*; Aoki, Yuji*; Kogi, Masafumi*; Sato, Hideyuki*

no journal, ,

no abstracts in English

Oral presentation

Magnetism of SmRuP $_{12}$ at low temperature and low field probed by SR

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki; Fujimoto, Tatsuya; Heffner, R. H.; Nishida, Nobuhiko*; Sato, Kazuhiko*; Sugawara, Hitoshi*; Aoki, Yuji*; Kikuchi, Daisuke*; et al.

no journal, ,

no abstracts in English

Oral presentation

Anomalous magnetic state in SmRuP $_{12}$ detected by muon spin relaxation

Ito, Takashi; Higemoto, Wataru; Oishi, Kazuki; Fujimoto, Tatsuya; Heffner, R. H.; Nishida, Nobuhiko*; Sato, Kazuhiko*; Sugawara, Hitoshi*; Aoki, Yuji*; Kikuchi, Daisuke*; et al.

no journal, ,

no abstracts in English