Faculty Profiles - WATANABE Shinji

Papers - WATANABE Shinji

Division display1 - 20 of about 78／ All the affair displays >>

Dynamical and static structure factors in hedgehog-antihedgehog order in an icosahedral 1/1 approximant crystal Reviewed International journal

Shinji Watanabe

Physical Review B 109 184404-1 - 184404-7 2024.05

Magnetic Dynamics and Nonreciprocal Excitation in Uniform Hedgehog Order in Icosahedral 1/1 Approximant Crystal Reviewed International journal

Shinji Watanabe

Scientific Reports 13 14438-1 - 14438-11 2023.09

Crystalline electric field and magnetic anisotropy in Dy-based icosahedral quasicrystal and approximant Reviewed International journal

Shinji Watanabe, Tatsuya Iwasaki

Physical Review B 108 045110-1 - 045110-6 2023.07

Magnetism and topological property in icosahedral quasicrystal Reviewed International journal

Shinji Watanabe

Journal of Physics: Conference Series 2461 012011-1 - 012011-8 2023.03

Temperature Dependence of Yb Valence in an Au–Al–Yb Intermediate-Valence Quasicrystal Investigated by Yb L3-Edge X-ray Absorption Near-Edge Structure Spectroscopy Reviewed International journal

Watanuki Tetsu, Mizumaki Masaichiro, Watanabe Shinji, Kawamura Naomi, Nitta Kiyofumi, Machida Akihiko, Ishimasa Tsutomu

MATERIALS TRANSACTIONS ( The Japan Institute of Metals and Materials ) 63 ( 10 ) 1380 - 1383 2022.09

Language：English Publishing type：Research paper (scientific journal)

In this paper, we investigate the temperature dependence of Yb valence in an Au–Al–Yb intermediate-valence quasicrystal by Yb L3-edge synchrotron X-ray absorption near-edge structure spectroscopy. The Yb valence of 2.61+ at room temperature decreases monotonically as the temperature decreases, indicating that the Yb ionic radius increases as the temperature decreases and is consistent with the anomalous suppression of the thermal shrinkage of this quasicrystal by cooling, as previously reported. The Yb valence changes by −0.053 on cooling from 298 to 2 K, and its change is more gradual on the high-temperature side than on the low-temperature side with the boundary around 200 K. Additionally, the effect of the changes in the Yb valence on the volume is quantitatively examined. The ratio of the volume changes due to the change in Yb valence per Yb atom, ΔVYb, to the amount of change in Yb valence, Δν, which is expressed as ΔVYb/Δν, was evaluated. The value of ΔVYb/Δν was estimated to be −2.8 Å3/unit Yb valence/Yb atom, whose value was close to that evaluated for YbInCu4.

DOI： 10.2320/matertrans.MT-M2022064

Scopus

CiNii Research

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85139524039&origin=inward

Magnetic dynamics of hedgehog in icosahedral quasicrystal Reviewed International journal

Shinji Watanabe

Scientific Reports 12 ( 1 ) 15514-1 - 15514-8 2022.09

Magnetic dynamics of ferromagnetic long range order in icosahedral quasicrystal Reviewed International journal

Shinji Watanabe

Scientific Reports 12 ( 1 ) 10792-1 - 10792-9 2022.06

Pressure dependence of the magnetic ground state in CePtSi2 Reviewed International journal

S. E. Dissanayake, F. Ye, W. Tian, M. Matsuda, H. Muto, S. Suzuki, T. Nakano, S. Watanabe, J. Gouchi, and Y. Uwatoko

Physical Review B 105 ( 24 ) 245111-1 - 245111-6 2022.06

Topological magnetic textures and long-range orders in terbium-based quasicrystal and approximant Reviewed International journal

Watanabe S.

Proceedings of the National Academy of Sciences of the United States of America 118(43) ( 43 ) e2112202118-1 - e2112202118-5 2021.10

Magnetism and topology in Tb-based icosahedral quasicrystal Reviewed International journal

Watanabe S.

Scientific Reports 11 ( 11 ) 17679-1 - 17679-8 2021.09

Elastic Softening in Quantum Critical Yb-Al-Au Approximant Crystal and Quasicrystal Reviewed International journal

Watanabe S.

Solid State Communications 336 ( 336 ) 114425-1 - 114425-6 2021.06

Crystalline Electronic Field in Rare-Earth Based Quasicrystal and Approximant: Analysis of Quantum Critical Au-Al-Yb Quasicrystal and Approximant Reviewed

Shinji Watanabe, Mina Kawamoto

J. Phys. Soc. Jpn. 90 ( 6 ) 063701-1 - 063701-5 2021.04

Interplay of valence and semimetal-to-insulator transitions in SmS Reviewed

Watanabe S.

Journal of the Physical Society of Japan 90 ( 2 ) 023706-1 - 023706-5 2021.01

Ultrasound Response in Quantum Critical β-YbAlB4 and α-YbAl0.986Fe0.014B4 Reviewed

Shinji Watanabe

J. Phys. Soc. Jpn. 89 ( 7 ) 073702-1 - 073702-5 2020.06

Theory for Non-Fermi Liquid Temperature Dependence in Resistivity of CexLa1-xCu5.62Au0.38 (x=0.02-0.10) on the Local Quantum Valence Criticality of Ce Impurities Reviewed

K. Miyake, S. Watanabe

JPS Conf. Proc. 30 011027-1 - 011027-7 2020.03