Yogi Mamoru

写真a

Title

Professor

Researcher Number(JSPS Kakenhi)

60404555
39
To the head of this page.▲

Current Affiliation Organization 【 display / non-display 】

  • Duty   University of the Ryukyus   Faculty of Science   Physics and Earth Sciences   Professor  

  • Concurrently   University of the Ryukyus   Graduate School of Engineering and Science   Material,Structural and Energy Engineering   Professor  

  • Concurrently   University of the Ryukyus   Graduate School of Engineering and Science   Physics and Earth Sciences   Professor  

To the head of this page.▲

Graduate School 【 display / non-display 】

  • 2000.04
    -
    2002.03

    University of the Ryukyus  Graduate School, Division of Science and Engineering  Doctor's Course (first term)  Completed

  • 2002.04
    -
    2004.03

    Osaka University  Graduate School, Division of Engineering Science  Physics  Doctor's Course (second term)  Completed

To the head of this page.▲

Academic degree 【 display / non-display 】

  • Osaka University -  Doctor (Science)

To the head of this page.▲

External Career 【 display / non-display 】

  • 2011.11
    -
    2014.03

    University of the Ryukyus, Faculty of Science, Department of Physics and Earth Sciences, Experimental and Computational Physics, Assistant Professor  

  • 2014.04
    -
    2023.03

    University of the Ryukyus, Faculty of Science, Department of Physics and Earth Sciences, Experimental and Computational Physics, Associate Professor  

  • 2023.04
    　
    　

    University of the Ryukyus, Faculty of Science, Department of Physics and Earth Sciences, Experimental and Computational Physics, Professor  

To the head of this page.▲

Research Interests 【 display / non-display 】

  • Solid State Physics

  • Strongly Correlated Electron System

To the head of this page.▲

Research Areas 【 display / non-display 】

  • Natural Science / Magnetism, superconductivity and strongly correlated systems

To the head of this page.▲

Acquisition of a qualification 【 display / non-display 】

  • Person in Charge of High-pressure Gas Production Security (chemical machinery and frozen machine)

  • Fire Protection Manager

  • Gas Welding Skilled Person

To the head of this page.▲

Research Theme 【 display / non-display 】

  • NMR and NQR Study on Strongly Correlated Electron Systems

To the head of this page.▲

Published Papers 【 display / non-display 】

  • CDW transitions in spinel-type Cu(Ir1-xVx)2S4 studied by 63Cu NMR

    Haruo Niki, Mamoru Yogi, Kaori Niki, Takahiro Maehira, Masato Hedo, Takao Nakama, Shuji Ebisu, Shoichi Nagata

    Interactions ( Interactions )  247 ( 1 ) 255   2026.06 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    • Access this article
      DOI

  • Antiferromagnetic state in EuAl4 studied by 27Al zero-field NMR

    H. Niki, N. Higa, S. Nakamura, M. Yogi, A. Nakamura, K. Niki, T. Maehira, M. Hedo, T. Nakama, Y. Onuki

    Interactions ( Interactions )  245 ( 1 ) 46   2024.03 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    • Access this article
      DOI

  • Nuclear-spin evidence of insulating and antiferromagnetic state of CuO2 planes in superconducting Pr2Ba4Cu7O15−δ

    Sotaro Nishioka, Susumu Sasaki, Shunsaku Nakagawa, Mitsuharu Yashima, Hidekazu Mukuda, Mamoru Yogi, Jun-ichi Shimoyama

    Applied Physics Express ( IOP Publishing )  15 ( 2 ) 023001-1 - 023001-4   2022.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    　View Summary

    Abstract In contrast to the “Pr-issue” that neither PrBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> (Pr123) nor PrBa<sub>2</sub>Cu<sub>4</sub>O<sub>8</sub> (Pr124) shows superconductivity (SC), we have observed 100%-fraction of SC in an oxygen-reduced Pr<sub>2</sub>Ba<sub>4</sub>Cu<sub>7</sub>O<sub>15−δ</sub> (Pr247) which has a hybrid structure that Pr247 = Pr123 + Pr124. It is found that Cu nuclear-spin signals from the CuO<sub>2</sub> planes observed at 300 K are completely wiped out at 2 K. Instead, the plane signals at 2 K are observed at higher frequencies. This indicates that, despite the bulk SC, the CuO<sub>2</sub> planes in Pr247 are found to be in an insulating and antiferromagnetically ordered state.

    • Access this article
      DOI Open Access

  • NMR investigations toward understanding the variety of ground states in iron-based superconductors

    S. Nishioka, T. Kouchi, F. Sakano, M. Yashima, H. Mukuda, M. Yogi, K. Yamaura, E. Takayama-Muromachi, S. Miyasaka, S. Tajima, H. Eisaki, A. Iyo, M. Kodani, T. Kakuto, J. -H. Lee, T. Kambe

    Journal of Physics: Conference Series ( IOP Publishing )  1975 ( 1 ) 012008-1 - 012008-7   2021.07 [ Peer Review Accepted ]

    Type of publication: Research paper (international conference proceedings)

    • Access this article
      DOI Open Access

  • Critical slowing-down and field-dependent paramagnetic fluctuations in the skyrmion host EuPtSi: μSR and NMR studies

    N. Higa, T. U. Ito, M. Yogi, T. Hattori, H. Sakai, S. Kambe, Z. Guguchia, W. Higemoto, M. Nakashima, Y. Homma, A. Nakamura, F. Honda, Y. Shimizu, D. Aoki, M. Kakihana, M. Hedo, T. Nakama, Y. Onuki, Y. Tokunaga

    Physical Review B ( American Physical Society )  104 ( 4 ) 045145-1 - 045145-7   2021.07 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

    • Access this article
      DOI Open Access

display all >>

To the head of this page.▲

Other Papers 【 display / non-display 】

To the head of this page.▲

SDGs 【 display / non-display 】

  • 強相関電子系化合物の微視的電子状態の解明

To the head of this page.▲

Social Activity 【 display / non-display 】

  • 2026.02
    　
    　

  • 2026.01
    　
    　

  • 2025.12
    　
    　

  • 2025.11
    　
    　

  • 2025.11
    　
    　

display all >>

To the head of this page.▲