Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
proton superfluidity in neutron star matter; Impact of bulk propertiesTanigawa, Tomonori; Matsuzaki, Masayuki*; Chiba, Satoshi
Physical Review C, 70(6), p.065801_1 - 065801_7, 2004/12
Times Cited Count：9 Percentile：51.36(Physics, Nuclear)We study the proton pairing gap in neutron star matterputting emphasis on influence of the Dirac effective mass and theproton fraction on the gap within the relativistic Hartree-Bogoliubovmodel. The gap equation is solved using the Bonn-B potential as aparticle-particle channel interaction. It is found that the maximalpairing gap 
is 1-2MeV, which has a strongcorrelation with the Dirac effective mass. Hence we suggest that itserves as a guide to narrow down parameter sets of the relativisticeffective field theory. Furthermore, the more slowly protons increasewith density, the lower the peak of the gap and the wider thesuperfluid range become.
and its homologuesAnton, J.*; Hirata, Masaru; Fricke, B.*; Pershina, V.*
Chemical Physics Letters, 380(1-2), p.95 - 98, 2003/10
Times Cited Count：6 Percentile：18.14(Chemistry, Physical)We use the newly developed non collinear spin polarized density functional method to describe the tetrachlorides of element Rutherfordium (Rf) and its homologues. It is the first time that a real three-dimensional molecule is described with this method. Without any additional corrections (used so far for the atomic values) we get nearly complete agreement for all homologues and thus a good prediction for the unknown value for RfCl.
pairing and its dependence on background density in a relativistic Hartree-Bogoliubov modelTanigawa, Tomonori; Matsuzaki, Masayuki*; Chiba, Satoshi
Physical Review C, 68(1), p.015801_1 - 015801_8, 2003/07
Times Cited Count：16 Percentile：68.45(Physics, Nuclear)We calculate a pairing gap in binary mixed matter of nucleons and 
hyperons within the relativistic Hartree-Bogoliubov model since a recent experiment suggests a weaker attraction than before, which has a significant impact on properties of neutron stars in various aspects. Lambda hyperons to be paired up are immersed in background nucleons in normal state. A phenomenological interaction, which is derived relativistically from the Lagrangian of the system, is adopted to the gap equation. It is found that at background density 
the pairing gap is very small, and that denser background makes it rapidly suppressed. This result suggests a mechanism, specific to mixed matter dealt with relativistic models, of its dependence on the nucleon density.
=3 states in Al-like ionsSafronova, U. I.*; Sataka, Masao; Albritton, J. R.*; Johnson, W. R.*; Safronova, M. S.*
Atomic Data and Nuclear Data Tables, 84(1), p.1 - 83, 2003/05
Times Cited Count：40 Percentile：87.13(Physics, Atomic, Molecular & Chemical)no abstracts in English
and NpCoGa
Maehira, Takahiro; Hotta, Takashi; Ueda, Kazuo; Hasegawa, Akira*
Physical Review Letters, 90(20), p.207007_1 - 207007_4, 2003/05
Times Cited Count：94 Percentile：92.39(Physics, Multidisciplinary)By using a relativistic linear augmented-plane-wave method, we clarify energy band structures and Fermi surfaces of recently discovered plutonium-based superconductor PuCoGa. We find several cylindrical sheets of Fermi surfaces with large volume, quite similar to CeMIn (M=Ir and Co) isostructural with PuCoGa, in spite of different 
-electron numbers between Ce
and Pu ions. This similarity is simply understood by a concept of electron-hole conversion in a tight binding model constructed based on the 
- coupling scheme. Due to the present results, we provide a possible scenario to explain why a transition temperature is so high as 18.5K in PuCoGa.
(T=Ir and Co) and analysis of the energy bands by using tight-binding methodMaehira, Takahiro; Hotta, Takashi; Ueda, Kazuo; Hasegawa, Akira*
Journal of the Physical Society of Japan, 72(4), p.854 - 864, 2003/04
Times Cited Count：75 Percentile：90.08(Physics, Multidisciplinary)In order to investigate electronic properties of recently discovered heavy fermion superconductors CeTIn (T=Ir and Co), we employ the relativistic linear augmented-plane-wave (RLAPW) method to clarify the energy band structures and Fermi surfaces of those materials.The obtained energy bands mainly due to the large hybridization between Ce 
and In 5
states well reproduce the Fermi surfaces consistent with the de Haas-van Alphen experimental results. For the purpose, we construct a tight-binding model for CeTIn by including - and - hoppings as well as - hybridization, which are expressed by the Slater-Koster integrals, determined by the direct comparison with the band-calculation result. Similarity and difference between CeIrIn and CeCoIn are discussed based on the obtained tight-binding model, suggesting a significant importance of the effect of crystalline electric field to understand the difference in electronic properties among CeTIn.
Raman, S.*; Nestor Jr., C. W.*; Ichihara, Akira; Trzhaskovskaya, M. B.*
Physical Review C, 66(4), p.044312_1 - 044312_23, 2002/10
Times Cited Count：52 Percentile：89.78(Physics, Nuclear)no abstracts in English
superconducting tubeYamauchi, Toshihiko; Matsuzawa, Hidenori*; Mikami, Koji*; Ishikawa, Junichi*
Japanese Journal of Applied Physics, Part 1, 41(9), p.5799 - 5800, 2002/09
Times Cited Count：3 Percentile：15.64(Physics, Applied)This paper describes the experimental result of the interaction between a high-Tc superconductor and charged particles (plasma). This study is expected for the interaction between the charged particle and superconductor in the group, high-Tc superconducting wiggler for electron beam of FEL (collaboration with Prof.Matsuzawa) and high-Tc superconducting tube for beam guiding published in the journal "Nature".
Tokuda, Shinji; Higuchi, Takatoshi*; Suzuki, Noriyuki*
Purazuma, Kaku Yugo Gakkai-Shi, 77(12), p.1180 - 1220, 2001/12
no abstracts in English
and homologues in the framework of relativistic density functionaltheoryVarga, S.*; Fricke, B.*; Hirata, Masaru; Bastug, T.; Pershina, V.*; Frizsche, S.*
Journal of Chemical Physics, 104(27), p.6495 - 6498, 2000/06
no abstracts in English
Yamagiwa, Mitsuru; Koga, J. K.; L.N.Tsintsadze*; Ueshima, Yutaka*; Kishimoto, Yasuaki
Physical Review E, 60(5), p.5987 - 5990, 1999/11
Times Cited Count：19 Percentile：62.99(Physics, Fluids & Plasmas)no abstracts in English
Erkoc, S.*; Bastug, T.*; Hirata, Masaru; Tachimori, Shoichi
Journal of the Physical Society of Japan, 68(2), p.440 - 445, 1999/02
no abstracts in English
Ueshima, Yutaka*; Arakawa, Takuya*; Kishimoto, Yasuaki; Sasaki, Akira; Tajima, Toshiki*
Inst. Phys. Conf. Ser., (159), p.325 - 328, 1999/00
no abstracts in English
Tokuda, Shinji; *
JAERI-Data/Code 98-032, 36 Pages, 1998/11
JAERI-Data-Code-98-032.pdf:1.93MB
no abstracts in English
Kurata, Hiroki; P.Wahlbring*; Isoda, S.*; Kobayashi, Takashi*
Micron, 28(5), p.381 - 388, 1997/00
Times Cited Count：10 Percentile：31.96(Microscopy)no abstracts in English
J.Eichler*; Ichihara, Akira; Shirai, Toshizo
Physical Review A, 51(4), p.3027 - 3035, 1995/04
Times Cited Count：53 Percentile：90.56(Optics)no abstracts in English
Namito, Yoshihito*; Ban, Shuichi*; Hirayama, Hideo*; Nariyama, Nobuteru*; Nakashima, Hiroshi; Nakane, Yoshihiro; Sakamoto, Yukio; Sasamoto, Nobuo; Asano, Yoshihiro; Tanaka, Shunichi
Physical Review A, 51(4), p.3036 - 3043, 1995/04
Times Cited Count：54 Percentile：91.07(Optics)no abstracts in English
Th.Stoehlker*; C.Kozhuharov*; P.H.Mokler*; A.Warczak*; F.Bosch*; H.Geissel*; R.Moshammer*; C.Scheidenberger*; J.Eichler*; Ichihara, Akira; et al.
Physical Review A, 51(3), p.2098 - 2111, 1995/03
Times Cited Count：106 Percentile：96.52(Optics)no abstracts in English
Th.Stoehlker*; F.Bosch*; H.Geissel*; T.Kandler*; C.Kozhuharov*; P.H.Mokler*; R.Moshammer*; P.Rymuza*; C.Scheidenberger*; Z.Stachura*; et al.
Nuclear Instruments and Methods in Physics Research B, 98, p.235 - 239, 1995/00
Times Cited Count：6 Percentile：54.93(Instruments & Instrumentation)no abstracts in English
T.Kandler*; Th.Stoehlker*; P.H.Mokler*; C.Kozhuharov*; H.Geissel*; C.Scheidenberger*; P.Rymuza*; Z.Stachura*; A.Warczak*; R.W.Dunford*; et al.
Z. Phys., D, 35, p.15 - 18, 1995/00
no abstracts in English
