WATANUKI Ryuta

Affiliation

Faculty of Engineering, Division of Materials Science and Chemical Engineering

Job Title

Research Fellow



Graduating School 【 display / non-display

  •  
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    1999

    Yokohama National University   Faculty of Engineering   Division of Materials Science and Chemical Engineering   Graduated

Graduate School 【 display / non-display

  •  
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    2004

    Yokohama National University  Graduate School of Environment and Information Sciences  Doctor Course  Completed

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    2001

    Yokohama National University  Graduate School, Division of Engineering  Master Course  Completed

Campus Career 【 display / non-display

  • 2007.04
    -
    Now

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Research Fellow  

  • 2006.04
    -
    2007.03

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Research Associate  

  • 2018.04
    -
    Now

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Research Fellow  

  • 2011.04
    -
    Now

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Chemistry, Chemical Engineering and Life Science   Research Fellow  

  • 2007.04
    -
    Now

    Concurrently   Yokohama National UniversityGraduate School of Engineering   Department of Materials Science and Engineering   Research Fellow  

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Academic Society Affiliations 【 display / non-display

  • 2014.06
     
     
     

    The Japanese Society for Neutron Science

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    The Physical Society of Japan

Field of expertise (Grants-in-aid for Scientific Research classification) 【 display / non-display

  • Condensed Matter of Physics

  • Solid State Physics

  • Condensed matter physics II

 

Papers 【 display / non-display

  • Redetermination of the crystal structure of R5Si4 (R= Pr, Nd) from single-crystal X-ray diffraction data

    K. Yokota, R. Watanuki, M. Nakashima, M. Uehara, J. Gouchi, Y. Uwatoko, I. Umehara

    Acta Crystallographica Section E   76 ( 4 )   510 - 513   2020.04  [Refereed]

    Joint Work

    DOI

  • Li/Na Storage Properties of Disordered Carbons Synthesized by Mechanical Milling

    Shimizu Soma, Rajendra Hongahally Basappa, Watanuki Ryuta, Yabuuchi Naoaki

    ELECTROCHEMISTRY ( 公益社団法人 電気化学会 )  87 ( 5 )   276 - 280   2019  [Refereed]

    Joint Work

     View Summary

    <p>Impact of structural disorder induced by mechanical milling on electrochemical properties of carbonaceous materials is systematically examined. Carbonaceous materials with different structural disorder are prepared by mechanical milling with different rotation speeds. Thus prepared carbons show sloping voltage profiles in Li/Na cells, which resemble those of soft carbons. The disordered carbon material prepared at 600 rpm shows a reversible capacity of >500 mA h g<sup>−1</sup> in a Li cell. In addition, the disordered carbon also delivers 200 mA h g<sup>−1</sup> in a Na cell with high Coulombic efficiency for continuous cycles. Heat treatment of the disordered carbon results in the formation of hard carbon with nanopores, and thus Li/Na storage properties are significantly changed.</p>

    Web of Science DOI CiNii

  • Polarized neutron scattering study of the multiple order parameter system NdB4

    N. Metoki, H. Yamauchi, M. Matsuda, J. A. Fernandez-Baca, R. Watanuki, and M. Hagihala

    Physical Review B ( American Physical Society )  97 ( 17 )   174416 1 - 10   2018.05  [Refereed]

    Joint Work

    Web of Science DOI

  • Magnetic Structure and Quadrupolar Order Parameter Driven by Geometrical Frustration Effect in NdB4

    Hiroki Yamauchi, Naoto Metoki, Ryuta Watanuki, Kazuya Suzuki , Hiroshi Fukazawa , Songxue Chi , and Jaime A. Fernandez-Baca

    Journal of the Physical Society of Japan ( 物理系学術誌刊行センター )  86 ( 4 )   044705 1 - 9   2017.03  [Refereed]

    Joint Work

    DOI

  • Field-induced phase transitions and magnetoferroelectricity in the perfect triangular lattice antiferromagnet RbFe(MoO4)2 in a vertical magnetic field

    Hiroyuki Mitamura, Ryuta Watanuki, Norimichi Onozaki, Yuta Amou, Yohei Kono, Shunichiro Kittaka, Yasuyuki Shimura, Isao Yamamoto, Kazuya Suzuki, Toshiro Sakakibara

    Journal of Magnetism and Magnetic Materials ( ELSEVIER )  400 ( 15 )   70–72   2016.02  [Refereed]

    Joint Work

    Web of Science DOI

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Academic Awards Received 【 display / non-display

  • JPSJ Papers of Editors' Choice

    2009.07    

Grant-in-Aid for Scientific Research 【 display / non-display

  • Grant-in-Aid for Young Scientists(B)

    Project Year: 2011.04  -  2014.03