Yoichi Higashi's website Last Updated: 12 March, 2019

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Yoichi HIGASHI

大峯山系にて















CV


Present Address:

Room# E342-1, 2-1E Bldg.
AIST Tsukuba Central 2
1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Phone: +81-29-861-2033
E-mail: y.higashi # ( # → @aist.go.jp )


Current Research Theme:

[ Vortex core structure in locally noncentrosymmetric superconductors ]
[ Impurity effect on the electronic structure of vortices in noncentrosymmetric system ]
[ Vortex state in unconventional superconductors: Flux-flow resistivity under rotating magnetic field/Quasiparticle scattering inside a vortex core ]



Publications:

[1] N. Hayashi, Y. Nagai, and Y. Higashi,
Analysis of field-angle dependent specific heat in unconventional superconductors: a comparison between Doppler-shift method and Kramer-Pesch approximation,
Physica C 470 (2010) S865-S867. [link] [arXiv]

[2] Y. Higashi, Y. Nagai, M. Machida, and N. Hayashi,
Field-angle dependence of the quasiparticle scattering inside a vortex core in unconventional superconductors,
Physica C 471 (2011) 828-830. [link] [arXiv]

[3] Y. Higashi, Y. Nagai, M. Machida, and N. Hayashi,
Phase-Sensitive Flux-Flow resistivity in Unconventional Superconductors,
J. Phys.: Conf. Ser. 400, 022025 (2012). [link] [arXiv]

[4] Y. Higashi, Y. Nagai, M. Machida, and N. Hayashi,
Effect of uniaxially anisotropic Fermi surface on the quasiparticle scattering inside a vortex core in unconventional superconductors,
Physica C 484, 97 (2013). [link] [arXiv]

[5] N. Hayashi, Y. Higashi, N. Nakai, and H. Suematsu,
Effect of Born and unitary impurity scattering on the Kramer-Pesch shrinkage of a vortex core in an s-wave superconductor,
Physica C 484, 69 (2013). [link] [arXiv]

[6] Y. Higashi, Y. Nagai, M. Machida, and N. Hayashi,
Effect of anisotropic Fermi surface on the flux-flow resistivity under rotating magnetic field,
Phys. Proc. 45, 137 (2013). [link] [arXiv]

[7] Y. Higashi, Y. Nagai, M. Machida, and N. Hayashi,
Field-angle Resolved Flux-flow Resistivity as a Phase-sensitive Probe of Unconventional Cooper Pairing,
Phys. Rev. B 88, 224511 (2013). [link] [arXiv]

[8] Y. Higashi, Y. Nagai, and N. Hayashi,
Impurity Effect on the Local Density of States around a Vortex in Noncentrosymmetric Superconductors,
JPS Conf. Proc. 3, 015003 (2014). [link] [arXiv]

[9] Y. Higashi, Y. Nagai, T. Yoshida, and Y. Yanase,
Vortex Core Structure in Multilayered Rashba Superconductors,
J. Phys.: Conf. Ser. 568, 022018 (2014). [link] [arXiv]

[10] Y. Higashi, Y. Nagai, T. Yoshida, M. Kato, and Y. Yanase,
Excitation spectra and wave functions of quasiparticle bound states in bilayer Rashba superconductors,
Physica C 518, 1 (2015). [link] [arXiv]

[11] Y. Higashi, Y. Nagai, T. Yoshida, Y. Masaki, and Y. Yanase,
Robust zero-energy bound states around a pair-density-wave vortex core in locally noncentrosymmetric superconductors,
Phys. Rev. B 93, 104529 (2016). [link] [arXiv]

[12] Yun-Tak Oh, Yoichi Higashi, Ching-Kit Chan, and Jung Hoon Han,
Adiabatic Green's function technique and the transient behavior in time-dependent fermion-boson coupled models,
Phys. Rev. B 94, 075113 (2016). [link] [arXiv]

[13] Yoichi Higashi, Huiming Zhang, and Yasunori Mawatari,
Analysis of Magnetization Loss on a Twisted Superconducting Strip in a Constantly Ramped Magnetic Field,
IEEE Trans. Appl. Supercond. 29, 8200207 (2019). [link] [arXiv]

[14] Yoichi Higashi and Yasunori Mawatari,
Electromagnetic coupling of twisted multi-filament superconducting tapes in a ramped magnetic field,
Supercond. Sci. Technol. (2019). [link] [arXiv]

[15] Yoichi Higashi and Yasunori Mawatari,
Analytical modeling of the magnetization loss on a helically wound superconducting tape in a ramped magnetic field,
submitted.

Presentations:

  • Yoichi Higashi and Yasunori Mawatari: (poster)
    Electormagnetic coupling of multifilamentary helically-wound superconducting tapes in a rapidly swept magnetic field,
    The 31th International Symposium on Superconductivity (ISS2018),
    Tsukuba (Japan), 12 December 2018 [WBP4-4].

  • Yoichi Higashi and Yasunori Mawatari: (oral)
    Eletromagnetic coupling of twisted multifilamentary superconducting tape wires in a constantly ramped magnetic field,
    2018 Applied Superconductivity Conference (ASC2018),
    Seattle (United States), 29 October 2018 [1MOr1A-05].

  • Yoichi Higashi and Yasunori Mawatari: (oral)
    Analysis of magnetization loss on a helically wound superconducting tape in a ramping magnetic field,
    6th International Workshop on Numerical Modelling of High Temperature Superconductors,
    Caparica (Portugal), 29 June 2018 [O6-16].

  • Yoichi Higashi, Huiming Zhang, Yasunori Mawatari: (invited)
    Analysis of Macroscopic Electromagnetic Response on a Twisted Superconducting Strip in Constantly Ramping Magnetic Fields,
    Collaborative Conference on Superconductivity,
    Singapore, 17 January 2018.

  • ◯Yasunori Mawatari, Yoichi Higashi: (oral)
    Simple analytical formulae to evaluate the irregular field in solenoid coils with high-temperature superconducting tape wires,
    CHATS on Applied Superconductivity 2017,
    Sendai (Japan), 10 - 12 December 2017.

  • Yoichi Higashi, Yasunori Mawatari: (poster)
    Electromagnetic Coupling of Multi-Filamentary Superconducting Tape Wires in Ramping Magnetic Fields,
    The 30th International Symposium on Superconductivity (ISS2017),
    Tokyo (Japan), 13 December 2017 [WBP6-4].

  • Yoichi Higashi, Huiming Zhang, Yasunori Mawatari: (poster)
    Analysis of Magnetization and Loss on a Twisted Superconducting Tape Wire in a Constantly Ramping Magnetic Field,
    The 30th International Symposium on Superconductivity (ISS2017),
    Tokyo (Japan), 13 December 2017 [WBP6-3].

  • ◯Yasunori Mawatari, Yoichi Higashi: (poster)
    Theoretical evaluation of the screening-current-induced field in HTS coils with tape wires,
    The13th European Conference on Applied Superconductivity (EUCAS2017),
    Geneva (Switzerland), 17 - 21 September 2017 [1MP5-08].

  • Yoichi Higashi, Huiming Zhang, Yasunori Mawatari: (poster)
    Electromagnetic field analysis of a twisted superconducting strip with sweeping magnetic field,
    The13th European Conference on Applied Superconductivity (EUCAS2017),
    Geneva (Switzerland), 17 - 21 September 2017 [1MP5-02].

  • Y. Higashi, Y. Nagai, T. Yoshida, M. Kato, Y. Yanase: (oral)
    Excitation Spectra and Wave Functions of Quasiparticle Bound States in Bilayer Rashba Superconductors,
    The 27th International Symposium on Superconductivity (ISS2014),
    Tokyo (Japan), 25 - 27 November 2014.

  • Y. Higashi, Y. Nagai, T. Yoshida, Y. Yanase: (poster)
    Vortex Core Structure in Multilayered Rashba Superconductors,
    The 27th International Conference on Low Temperature Physics (LT27),
    Buenos Aires (Argentina), 6 - 13 August 2014.

  • ◯T. Yamane, Y. Higashi, M. Kato, Y. Nagai, K. Tanaka, N. Hayashi: (poster)
    Impurity scattering effect on the local density of states around a multi-quantum vortex,
    The 26th International Symposium on Superconductivity (ISS2013),
    Tokyo (Japan), 18 - 20 November 2013.

  • Y. Higashi, Y. Nagai, N. Hayashi: (poster)
    Impurity Effect on the Local Density of States around a Vortex in Noncentrosymmetric Superconductors,
    The International Conference on Strongly Correlated Electron Systems 2013 (SCES2013),
    Tokyo (Japan), 5 - 9 August 2013.

  • Y. Higashi, Y. Nagai, M. Machida, N. Hayashi: (poster)
    Effect of anisotropic Fermi surface on the flux-flow resistivity under rotating magnetic field,
    The 25th International Symposium on Superconductivity (ISS2012),
    Tokyo (Japan), 3 - 5 December 2012.

  • Y. Higashi, Y. Nagai, M. Machida, N. Hayashi: (poster)
    Effect of uniaxially anisotropic Fermi surface on the quasiparticle scattering inside a vortex core in unconventional superconductors,
    The 24th International Symposium on Superconductivity (ISS2011),
    Tokyo (Japan), 24 - 26 October 2011.

  • Y. Higashi, Y. Nagai, M. Machida, N. Hayashi: (poster)
    Phase-Sensitive Quasiparticle Scattering inside a Vortex Core in Unconventional Superconductors,
    The 26th International Conference on Low Temperature Physics (LT26),
    Beijing (China), 10 - 17 August 2011.

  • Y. Higashi, Y. Nagai, M. Machida, N. Hayashi: (poster)
    Field-Angle Dependence of the Quasiparticle Scattering inside a Vortex Core in Unconventional Superconductors,
    The 23th International Symposium on Superconductivity (ISS2010),
    Tsukuba (Japan), 1 - 3 November 2010.

  • Y. Higashi and ◯N. Hayashi: (poster)
    Theory for Field-Angle-Dependent Flux-Flow Resistivity in Unconventional Superconductors,
    Vortex Matter in Nanostructured Superconductors (VORTEX VI),
    Rhodes (Greece), 17-24 September 2009.

  • Y. Higashi and ◯N. Hayashi: (poster)
    Theory for Field-Angle-Dependent Flux-Flow Resistivity in Unconventional Superconductors,
    The 9th International Conference on Materials and Mechanisms of Superconductivity (M2S-IX),
    Tokyo (Japan), 7-12 September 2009.


    北アルプス 天狗池















    Tengu-ike, the Northern Japan Alps
  • Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST) Superconducting Electronics Group
  • Department of Physics, Sungkyunkwan University Manybody Physics Group
  • Nanoscience and Nanotechnology Research Center (N2RC) Dr. Nobuhiko Hayashi
  • Japan Atomic Energy Agency Dr. Yuki Nagai
  • Department of Mathematical Sciences, Osaka Prefecture University Quantum physics Group
  • Korea Institute for Advanced Study Dr. Kun Woo Kim