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Journal Articles

Quasifree neutron knockout reaction reveals a small $$s$$-Orbital component in the Borromean nucleus $$^{17}$$B

Yang, Z. H.*; Kubota, Yuki*; Corsi, A.*; Yoshida, Kazuki; Sun, X.-X.*; Li, J. G.*; Kimura, Masaaki*; Michel, N.*; Ogata, Kazuyuki*; Yuan, C. X.*; et al.

Physical Review Letters, 126(8), p.082501_1 - 082501_8, 2021/02

AA2020-0819.pdf:1.29MB

https://doi.org/10.1103/PhysRevLett.126.082501
 Times Cited Count：43 Percentile：96.7(Physics, Multidisciplinary)

A quasifree ($$p$$,$$pn$$) experiment was performed to study the structure of the Borromean nucleus $$^{17}$$B, which had long been considered to have a neutron halo. By analyzing the momentum distributions and exclusive cross sections, we obtained the spectroscopic factors for $$1s_{1/2}$$ and $$0d_{5/2}$$ orbitals, and a surprisingly small percentage of 9(2)% was determined for $$1s_{1/2}$$. Our finding of such a small $$1s_{1/2}$$ component and the halo features reported in prior experiments can be explained by the deformed relativistic Hartree-Bogoliubov theory in continuum, revealing a definite but not dominant neutron halo in $$^{17}$$B. The present work gives the smallest $$s$$- or $$p$$-orbital component among known nuclei exhibiting halo features and implies that the dominant occupation of $$s$$ or $$p$$ orbitals is not a prerequisite for the occurrence of a neutron halo.

Journal Articles

Melting of Pb charge glass and simultaneous Pb-Cr charge transfer in PbCrO$$_{3}$$ as the origin of volume collapse

Yu, R.*; Hojo, Hajime*; Watanuki, Tetsu; Mizumaki, Masaichiro*; Mizokawa, Takashi*; Oka, Kengo*; Kim, H.*; Machida, Akihiko; Sakaki, Koji*; Nakamura, Yumiko*; et al.

Journal of the American Chemical Society, 137(39), p.12719 - 12728, 2015/10

https://doi.org/10.1021/jacs.5b08216
 Times Cited Count：34 Percentile：70.17(Chemistry, Multidisciplinary)

no abstracts in English

Journal Articles

High-resolution soft X-ray photoemission spectroscopy of spinel-type compound CuIr$$_{2}$$S$$_{4}$$

Okane, Tetsuo; Fujimori, Shinichi; Mamiya, Kazutoshi; Okamoto, Jun; Muramatsu, Yasuji; Fujimori, Atsushi; Suzuki, Hiroyuki*; Matsumoto, Takehiko*; Furubayashi, Takao*; Isobe, Masaaki*; et al.

Journal of Magnetism and Magnetic Materials, 272-276(Suppl.), p.e297 - e298, 2004/05

https://doi.org/10.1016/j.jmmm.2003.11.171
 Times Cited Count：5 Percentile：29.77(Materials Science, Multidisciplinary)

The electronic structure of spinel-type chalcogenide CuIr$$_{2}$$S$$_{4}$$, which exhibits a metal-insulator transition (MIT) as a function of temperature, has been studied by photoemission spectroscopy (PES). Below the transition temperature $$T_{mathrm{MI}}$$, the valence-band PES spectra indicate a gap formation, while the overall valence-band structure is shifted to the higher binding-energy side. The line shape of the Ir 4${it f}$ core-level PES spectra shows a dramatic change across $$T_{mathrm{MI}}$$, which may be associated with the variation of the Ir 5${it d}$ electron states.

Oral presentation

Superconductivity in BaIrSi$$_2$$ with noncentrosymmetric crystal structure probed by Muon Spin Rotation

Miyazaki, Itsuki*; Higemoto, Wataru; Oda, Yuto; Ito, Takashi; Isobe, Masaaki*

no journal, , 

Oral presentation

Superconductivity in SrAuSi$$_3$$ with noncentrosymmetric crystal structure probed by $$mu$$SR

Miyazaki, Itsuki; Higemoto, Wataru; Ito, Takashi; Isobe, Masaaki*

no journal, , 

no abstracts in English

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