Research Summary

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

• 1.T. Shimojima, Y. Suzuki, A. Nakamura, N. Mitsuishi, S. Kasahara, T. Shibauchi, Y. Matsuda, Y. Ishida, S. Shin, and K. Ishizaka.:
  "Ultrafast nematic-orbital excitation in FeSe"
  Nat. Commun. 10, 1946 (2019).
• 2.A. Nakamura, T. Shimojima, M. Matsuura, Y. Chiashi, M. Kamitani, H. Sakai, S. Ishiwata, H. Li, A. Oshiyama and K. Ishizaka.:
  "Evaluation of photo-induced shear strain in monoclinic VTe₂ by ultrafast electron diffraction"
  Appl. Phys. Express 11, 092601 (2018).
• 3.Shin-ichiro Ideta, Dongfang Zhang, Arend G. Dijkstra, Sergey Artyukhin, Sercan Keskin, Roberto Cingolani, Takahiro Shimojima, Kyoko Ishizaka, Hiroyuki Ishii, Kazutaka Kudo, Minoru Nohara and R. J. Dwayne Miller.:
  "Ultrafast dissolution and creation of bonds in IrTe₂ induced by photodoping"
  Sci. Adv. 4, eaar3867 (2018).
• 4.T. Sonobe, T. Shimojima, A. Nakamura, M. Nakajima, S.Uchida, K. Kihou, C.H. Lee, A. Iyo, H. Eisaki, K. Ohgushi, and K. Ishizaka.:
  "Orbital-anisotropic electronic structure in the nonmagnetic state of BaFe₂(A_s1-xP_x)₂ superconductors"
  Sci. Rep. 8, 2169 (2018).
• 5.T. Shimojima, W. Malaeb, A. Nakamura, T. Kondo, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, S. Ishida, M. Nakajima, S. Uchida, K. Ohgushi, K. Ishizaka, and S. Shin.:
  "Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors"
  Sci. Adv. 3, e1700466 (2017).
• 6.M. Sakano,M. S. Bahramy, H. Tsuji, Araya, K. Ikeura, H. Sakai, S. Ishiwata, K. Yaji, K. Kuroda, A. Harasawa, S. Shin, and K. Ishizaka.:
  "Observation of spin-polarized bands and domain-dependent Fermi arcs in polar Weyl semimetal MoTe₂"
  Phys. Rev. B 95, 121101(R) (2017).
• 7.A. Nakamura, T. Shimojima, T. Sonobe, S. Yoshida, K. Ishizaka, W. Malaeb, S. Shin, S. Iimura, S. Matsuishi, and H. Hosono.:
  "Multiple-pseudogap phases in the hydrogen-doped LaFeAsO system"
  Phys. Rev. B 95, 064501 (2017).
• 8.A. Nakamura, T. Shimojima, M. Nakano, Y. Iwasa, and K. Ishizaka.:
  "Electron and lattice dynamics of transition metal thin films observed by ultrafast electron diffraction and transient optical measurements"
  Struct, Dyn. 3, 064501 (2016).
• 9.Y. Suzuki, T. Shimojima, T. Sonobe, A. Nakamura, M. Sakano, H. Tsuji, J. Omachi, K. Yoshioka, M. Kuwata-Gonokami, T. Watashige, R. Kobayashi, S. Kasahara, T. Shibauchi, Y. Matsuda, Y. Yamakawa, H. Kontani, and K. Ishizaka.:
  "Momentum-dependent sign inversion of orbital order in superconducting FeSe"
  Phys. Rev. B, 92, 205117 (2015).
• 10.M. Sakano, K. Okawa, M. Kanou, H. Sanjo, T. Okuda, T. Sasagawa, and K. Ishizaka.:
  Topologically protected surface states in a centrosymmetric superconductor β-PdBi₂"
  Nat. Commun., 6, 8595 (2015).

Recent Research Results

• 

  Aug. 1, 2023
  Using sound waves to image nanostructures

• 

  Nov. 22, 2021
  Heat flow controls the movement of skyrmions in an insulating magnet

• 

  Sep. 16, 2021
  Observing the life cycle of skyrmions in exquisite detail

• 

  Jul. 31, 2020
  Laser pulses induce a different kind of sound wave

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