下志万 貴博 (Takahiro Shimojima) (email address: Please replace '[at]' by '@')
所属 理化学研究所 創発物性科学研究センター 電子状態スペクトロスコピー研究チーム
職名 研究員
所属学会 日本物理学会, 日本放射光学会, American Physical Society
 連絡先   takahiro.shimojima[at]riken.jp
略歴
03/1999 法政大学第二高等学校 卒業
03/2003 法政大学 工学部電気電子工学科 卒業
03/2005 東京大学大学院 工学系研究科 物理工学専攻 修士課程修了
04/2007 東京大学 物性研究所 辛研究室 日本学術振興会 特別研究員
03/2008 東京大学大学院 工学系研究科 物理工学専攻 博士課程修了 
04/2009 東京大学 物性研究所 辛研究室 特別研究員
04/2010 東京大学大学院 工学系研究科物理工学専攻 助教
04/2014 東京大学大学院 工学系研究科付属量子相エレクトロニクス研究センター 助教
02/2017 理化学研究所 創発物性科学研究センター
電子状態スペクトロスコピー研究チーム 研究員
     
博士論文 「光電子分光によるコバルト酸化物超伝導体NaxCoO2yH2Oの電子状態の研究」
 
 【原著論文】 【招待講演】 【著書・解説記事】 【外部資金】
 原著論文
  1. Development and applications of ultrafast transmission electron microscopy
    T. Shimojima, A. Nakamura, K. Ishizaka
    Microscopy dfad021 (2023). 
    https://doi.org/10.1093/jmicro/dfad021
  2. Characterizing an Optically Induced Sub-micrometer Gigahertz Acoustic Wave in a Silicon Thin Plate
    Asuka Nakamura, Takahiro Shimojima, Kyoko Ishizaka
    Nano Letters 23, 2490-2495 (2023). 
    https://doi.org/10.1021/acs.nanolett.2c03938
  3. Development of five-dimensional scanning transmission electron microscopy
    T. Shimojima, A. Nakamura, K. Ishizaka
    Review of Scientific Instruments 94, 023705-023705 (2023). 

  4. Visualizing optically-induced strains by five-dimensional ultrafast electron microscopy
    A. Nakamura, T. Shimojima, K. Ishizaka
    Faraday Discuss 237, 27-39 (2023). 
  5. Discovery of mesoscopic nematicity wave in iron-based superconductors.
    T. Shimojima, Y. Motoyui, T. Taniuchi, C. Bareille, S. Onari, H. Kontani, M. Nakajima, S. Kasahara, T. Shibauchi, Y. Matsuda, S. Shin,
    Science 373, 1122 (2021). 【プレスリリース,日刊工業新聞

  6. Nano-to-micro spatiotemporal imaging of magnetic skyrmion’s life cycle.
    T. Shimojima, A. Nakamura, X. Z. Yu, K. Karube, Y. Taguchi, Y. Tokura, K. Ishizaka,
    Science Advances 7, eabg1322 (2021). 【プレスリリース
     
  7. Finite-element simulation of photoinduced strain dynamics in silicon thin plates.
    A. Nakamura, T. Shimojima, and K. Ishizaka,
    Structural Dynamics 8, 024103 (2021).
     
  8. Nanoscale Imaging of Unusual Photoacoustic Waves in Thin Flake VTe2.
    A. Nakamura*, T. Shimojima*, Y. Chiashi, M. Kamitani, H. Sakai, S. Ishiwata, H. Li, and K. Ishizaka,
    Nano Lett. 20, 4932 (2020). (*equally contributed) 【プレスリリース
     
  9. Switching of band inversion and topological surface states by charge density wave.
    N. Mitsuishi, Y. Sugita, M. S. Bahramy, M. Kamitani, T. Sonobe, M. Sakano, T. Shimojima, H. Takahashi, H. Sakai, K. Horiba, H. Kumigashira, K. Taguchi, K. Miyamoto, T. Okuda, S. Ishiwata, Y. Motome and K. Ishizaka
    Nat. Commun. 10, 1946 (2019). 【プレスリリース
     
  10. Gigahertz-repetition-rate, narrowband-deep-ultraviolet light source for minimization of acquisition time in high-resolution angle-resolved photoemission spectroscopy.
    K. Yoshioka, J. Omachi, M. Sakano, T. Shimojima, K. Ishizaka, and M. Kuwata-Gonokami
    Review of Scientific Instruments 90, 123109 (2019).
     
  11. Ultrafast nematic-orbital excitation in FeSe.
    T. Shimojima, Y. Suzuki, A. Nakamura, N. Mitsuishi, S. Kasahara, T. Shibauchi, Y. Matsuda, Y. Ishida, S. Shin, K. Ishizaka,
    Nat. Commun. 10, 1946 (2019). 【プレスリリース
     
  12. Evaluation of photo-induced shear strain in monoclinic VTe2 by ultrafast electron diffraction.
    A. Nakamura*, T. Shimojima*, M. Matsuura, Y. Chiashi, M. Kamitani, H. Sakai, S. Ishiwata, H. Li, A. Oshiyama, K. Ishizaka,
    Applied Physics Express 11, 092601 (2018). (*equally contributed)
  13. Utrafast dissolution and creation of bonds in IrTe2 induced by photodoping.
    S. Ideta, D. Zhang, A. G. Dijkstra, S. Artyukhin, S. Keskin, R. Cingolani, T. Shimojima, K. Ishizaka, H. Ishii, K. Kudo, M. Nohara, R. J. D. Miller,
    Science Advances 4, eaar3867 (2018).
     
  14. Lattice Dynamics of 1T'-MoTe2 Studied by Time-Resolved Transmission X-Ray Diffraction at SACLA.
    T. Shimojima, A. Nakamura, K. Ishizaka,Y. Tanaka, K. Takubo, Y. Hirata, H. Wadati, S. Yamamoto, I. Matsuda, K. Ikeura, H. Takahashi, H. Sakai, S. Ishiwata, T. Togashi, S. Owada, T. Katayama, K. Tono, M. Yabashi, and S. Shin,
    Advances in X-Ray Chemical Analysis, Japan 49, 163 (2018).
     
  15. Orbital-anisotropic electronic structure in the nonmagnetic state of BaFe2(As1−xPx)2 superconductors.
    T. Sonobe, T. Shimojima, A. Nakamura, M. Nakajima, S. Uchida, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, K. Ohgushi, and K. Ishizaka,
    Scientific Reports 8, 2169 (2018).
     
  16. Large magneto-thermopower in MnGe with topological spin texture.
    Y. Fujishiro, N. Kanazawa, T. Shimojima, A. Nakamura, K. Ishizaka, T. Koretsune, R. Arita, A. Miyake, H. Mitamura, K. Akiba, M. Tokunaga, J. Shiogai, S. Kimura, S. Awaji, A. Tsukazaki, A. Kikkawa, Y. Taguchi, and Y. Tokura,
    Nature Communications 9, 408 (2018).
     
  17. Superconducting gap anisotropy sensitive to nematic domains in FeSe.
    T. Hashimoto, Y. Ota, H. Yamamoto, Y. Suzuki, T. Shimojima, S. Watanabe, C. Chen, S. Kasahara, Y. Matsuda, T. Shibauchi, K. Okazaki, and S. Shin,
    Nature Communications 9, 282 (2018).
     
  18. Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors.
    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,
    Science Advances 3, e1700466 (2017). 【プレスリリース
     
  19. Multiple-pseudogap phases in the hydrogen-doped LaFeAsO system.
    A. Nakamura, T. Shimojima, T. Sonobe, S. Yoshida, K. Ishizaka, W. Malaeb, S. Shin, S. Iimura, S. Matsuishi, and H. Hosono,
    Physical Review B 95, 064501 (2017).
     
  20. Electron and lattice dynamics of transition metal thin films observed by ultrafast electron diffraction and transient optical measurements.
    A. Nakamura, T. Shimojima, M. Nakano, Y. Iwasa, and K. Ishizaka,
    Structural Dynamics 3, 064501 (2016).
     
  21. Low-Temperature and High-Energy-Resolution Laser Photoemission Spectroscopy.
    T. Shimojima, K. Okazaki, and S. Shin,
    Journal of Physical Society of Japan 84, 072001 (2015). (Invited review paper)
     
  22. Momentum-dependent sign inversion of orbital order in superconducting FeSe.
    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,
    Physical Review B 92, 205117 (2015).
     
  23. Importance of both spin and orbital fluctuations in BaFe2(As1−xPx)2 : Evidence from superconducting gap anisotropy.
    T. Yoshida, S. Ideta, T. Shimojima, W. Malaeb, K. Shinada, H. Suzuki, I. Nishi, A. Fujimori, K. Ishizaka, S. Shin, Y. Nakashima, H. Anzai, M. Arita, A. Ino, H. Namatame, M. Taniguchi, H. Kumigashira, K. Ono, S. Kasahara, T. Shibauchi, T.Terashima, Y. Matsuda, M. Nakajima, S. Uchida, Y. Tomioka, T. Ito, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, H. Ikeda, R. Arita, T. Saito, S. Onari, and H. Kontani,
    Scientific Reports 4, 7292 (2014).
     
  24. Evidence of a universal relation between electron-mode coupling and Tc in Ba1-xKxFe2As2 superconductor from Laser ARPES.
    W. Malaeb, T. Shimojima, Y. Ishida, T. Kondo, K. Okazaki, Y. Ota, K. Ohgushi, K. Kihou, C.H. Lee, A. Iyo, H. Eisaki, S. Ishida, M. Nakajima, S. Uchida, H. Fukazawa, T. Saito, Y. Kohori, and S. Shin,
    Physical Review B 90, 195124 (2014).
     
  25. Lifting of xz/yz orbital degeneracy at the structural transition in detwinned FeSe.
    T. Shimojima, Y. Suzuki, T. Sonobe, A. Nakamura, M. Sakano, J. Omachi, K. Yoshioka, M. Kuwata-Gonokami, K. Ono, H. Kumigashira, A. E. Böhmer, F. Hardy, T. Wolf, C. Meingast, H. v. Löhneysen, H. Ikeda, and K. Ishizaka,
    Physical Review B 90, 121111(R) (2014).
     
  26. Redox Control and High Conductivity of Nickel Bis(dithiolene) Complex π-Nanosheet: A Potential Organic Two-Dimensional Topological Insulator.
    T. Kambe, R. Sakamoto, T. Kusamoto, T. Pal, N. Fukui, K. Hoshiko, T. Shimojima, Z. Wang, T. Hirahara, K. Ishizaka, S. Hasegawa, F. Liu, and H. Nishihara,
    Journal of the American Chemical Society, 136, 14357 (2014).
     
  27. Superconductivity in an electron band just above the Fermi level: possible route to BCS-BEC superconductivity.
    K. Okazaki, Y. Ito, Y. Ota, Y. Kotani, T. Shimojima, T. Kiss, S. Watanabe, C. Chen, S. Niitaka, T. Hanaguri, H. Takagi, A. Chainani, and S. Shin,
    Scientific Reports 4, 4109 (2014).
     
  28. Evidence for excluding the possibility of d-wave superconducting-gap symmetry in Ba-doped KFe2As2.
    Y. Ota, K. Okazaki, Y. Kotani, T. Shimojima, W. Malaeb, S. Watanabe, C. -T. Chen, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, T. Saito, H. Fukazawa, Y. Kohori, and S. Shin,
    Physical Review B 89, 081103 (2014).
     
  29. Pseudogap formation above the superconducting dome in iron pnictides.
    T. Shimojima, T. Sonobe, W. Malaeb, K. Shinada, A. Chainani, S. Shin, T. Yoshida, S. Ideta, A. Fujimori, H. Kumigashira, K. Ono, Y. Nakashima, H. Anzai, M. Arita, A. Ino, H. Namatame, M. Taniguchi, M. Nakajima, S. Uchida, Y. Tomioka, T. Ito, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, K. Ohgushi, S. Kasahara, T. Terashima, H. Ikeda, T. Shibauchi, Y. Matsuda, and K. Ishizaka,
    Physical Review B 89, 045101 (2014).
     
  30. Effects of Zn substitution on the electronic structure of BaFe2As2 revealed by angle-resolved photoemission spectroscopy.
    S. Ideta, T. Yoshida, M. Nakajima, W. Malaeb, T. Shimojima, K. Ishizaka, A. Fujimori, H. Kumigashira, K. Ono, K. Kihou, Y. Tomioka, C. H. Lee, A. Iyo, H. Eisaki, T. Ito, and S. Uchida,
    Physical Review B 87, 201110(R) (2013).
     
  31. Strongly Spin-Orbit Coupled Two-Dimensional Electron Gas Emerging near the Surface of Polar Semiconductors.
    M. Sakano, M. S. Bahramy, A. Katayama, T. Shimojima, H. Murakawa, Y. Kaneko, W. Malaeb, S. Shin, K. Ono, H. Kumigashira, R. Arita, N. Nagaosa, H. Y. Hwang, Y. Tokura, and K. Ishizaka,
    Physical Review Letters 110, 107204 (2013).
     
  32. Evidence for a cos(4j) Modulation of the Superconducting Energy Gap of Optimally Doped FeTe0.6Se0.4 Single Crystals Using Laser Angle-Resolved Photoemission Spectroscopy.
    K. Okazaki, Y. Ito, Y. Ota, Y. Kotani, T. Shimojima, T. Kiss, S. Watanabe, C. -T. Chen, S. Niitaka, T. Hanaguri, H. Takagi, A. Chainani, and S. Shin,
    Physical Review Letters 109, 237011 (2012).
     
  33. Abrupt change in the energy gap of superconducting Ba1-xKxFe2As2 single crystals with hole doping.
    W. Malaeb, T. Shimojima, Y. Ishida, K. Okazaki, Y. Ota, K. Ohgushi, K. Kihou, T. Saito, C. H. Lee, S. Ishida, M. Nakajima, S. Uchida, H. Fukazawa, Y. Kohori, A. Iyo, H. Eisaki, C.-T. Chen, S. Watanabe, H. Ikeda, and S. Shin,
    Physical Review B 86, 165117 (2012).
     
  34. Quasiparticles and Fermi liquid behaviour in an organic metal.
    T. Kiss, A. Chainani, H.M. Yamamoto, T. Miyazaki, T. Akimoto, T. Shimojima, K. Ishizaka, S. Watanabe, C.-T. Chen, A. Fukaya, R. Kato, and S. Shin,
    Nature Communications 3, 1089 (2012).
     
  35. Octet-Line Node Structure of Superconducting Order Parameter in KFe2As2.
    K. Okazaki, Y. Ota, Y. Kotani, W. Malaeb, Y. Ishida, T. Shimojima, T. Kiss, S. Watanabe, C.-T. Chen, K. Kihou, C. H. Lee, A. Iyo, H. Eisaki, T. Saito, H. Fukazawa, Y. Kohori, K. Hashimoto, T. Shibauchi, Y. Matsuda, H. Ikeda, H. Miyahara, R. Arita, A. Chainani, and S. Shin,
    Science 337, 1314 (2012).
     
  36. Three-dimensional bulk band dispersion in polar BiTeI with giant Rashba-type spin splitting.
    M. Sakano, J. Miyawaki, A. Chainani, Y. Takata, T. Sonobe, T. Shimojima, M. Oura, S. Shin, M. S. Bahramy, R. Arita, N. Nagaosa, H. Murakawa, Y. Kaneko, Y. Tokura, and K. Ishizaka,
    Physical Review B 86, 085204 (2012).
     
  37. Angle-resolved photoemission study on the superconducting iron-pnictides of BaFe2(As,P)2 with low energy photons.
    T. Shimojima, F. Sakaguchi, K. Ishizaka, Y. Ishida, W. Malaeb, T. Yoshida, S. Ideta, A. Fujimori, T. Kiss, M. Okawa, T. Togashi, C.-T. Chen, S. Watanabe, Y. Nakashima, A. Ino, H. Anzai, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, M. Nakajima, S. Uchida, K. Kihou, C.H. Lee, A. Iyo, H. Eisaki, A. Chainani, and S. Shin,
    Solid State Communications 152, 695 (2012); Special issue on iron-based superconductors.
     
  38. Giant Rashba-type spin splitting in bulk BiTeI.
    K. Ishizaka, M. S. Bahramy, H. Murakawa, M. Sakano, T. Shimojima, T. Sonobe, K. Koizumi, S. Shin, H. Miyahara, A. Kimura, K. Miyamoto, T. Okuda, H. Namatame, M. Taniguchi, R. Arita, N. Nagaosa, K. Kobayashi, Y. Murakami, R. Kumai, Y. Kaneko, Y. Onose1, and Y. Tokura,
    Nature Materials 10, 521 (2011).
     
  39. Orbital-Independent Superconducting Gaps in Iron-Pnictides.
    T. Shimojima, F. Sakaguchi, K. Ishizaka, Y. Ishida, T. Kiss, M. Okawa, T. Togashi, C.-T. Chen, S. Watanabe, M. Arita, K. Shimada, H. Namatame, M. Taniguchi, K. Ohgushi, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, A. Chainani, and S. Shin,
    Science 332, 564 (2011). 【プレスリリース,読売新聞,日刊工業新聞,RIKEN RESEARCH HIGHLIGHT
     
  40. Orbital-Dependent Modifications of Electronic Structure across the Magnetostructural Transition in BaFe2As2.
    T. Shimojima, K. Ishizaka, Y. Ishida, N. Katayama, K. Ohgushi, T. Kiss, M. Okawa, T. Togashi, X.-Y. Wang, C.-T. Chen, S. Watanabe, R. Kadota, T. Oguchi, A. Chainani, and S. Shin,
    Physical Review Letters 104, 057002 (2010).
     
  41. Temperature-dependent pseudogap in the oxypnictides LaFeAsO1-xFx and LaFePO1-xFx seen via angle-integrated photoemission.
    Y. Ishida, T. Shimojima, K. Ishizaka, T. Kiss, M. Okawa, T. Togashi, S. Watanabe, X.-Y. Wang, C.-T. Chen, Y. Kamihara, M. Hirano, H. Hosono, and S. Shin,
    Physical Review B 79, 060503(R) (2009).
     
  42. Doping-dependence of nodal quasiparticle properties in high-Tc cuprates studied by laser-excited angle-resolved photoemission spectroscopy.
    K. Ishizaka, T. Kiss, S. Izumi, M. Okawa, T. Shimojima, A. Chainani, T. Togashi, S. Watanabe, C.-T. Chen, X. Y. Wang, T. Mochiku, T. Nakane, K. Hirata, and S. Shin,
    Physical Review B 77, 064522 (2008).
     
  43. Bulk electronic structure of the antiferromagnetic superconducting phase in ErNi2B2C.
    T. Baba, T. Yokoya, S. Tsuda, T. Kiss, T. Shimojima, K. Ishizaka, H. Takeya, K. Hirata, T. Watanabe, M. Nohara, H. Takagi, N. Nakai, K. Machida, T. Togashi, S. Watanabe, X.-Y. Wang, C. T. Chen, and S. Shin,
    Physical Review Letters 100, 017003 (2008).
     
  44. A versatile system for ultrahigh resolution, low temperature, and polarization dependent Laser-angle-resolved photoemission spectroscopy.
    T. Kiss, T. Shimojima, K. Ishizaka, A. Chainani, T. Togashi, T. Kanai, X.-Y. Wang, C.-T. Chen, S. Watanabe, and S. Shin,
    Review of Scientific Instruments 79, 023106 (2008).
     
  45. Interplay of Superconductivity and Rattling Phenomena in b-Pyrochlore KOs2O6 Studied by Photoemission Spectroscopy.
    T. Shimojima, Y. Shibata, K. Ishizaka, T. Kiss, A. Chainani, T. Yokoya, T. Togashi, X.-Y. Wang, C. T. Chen, S. Watanabe, J. Yamaura, S. Yonezawa, Y. Muraoka, Z. Hiroi, T. Saitoh, and S. Shin,
    Physical Review Letters 99, 117003 (2007). 【RIKEN RESEARCH HIGHLIGHT
     
  46. Observation of a Superconducting Gap in Boron-Doped Diamond by Laser-Excited Photoemission Spectroscopy.
    K. Ishizaka, R. Eguchi, S. Tsuda, T. Yokoya, A. Chainani, T. Kiss, T. Shimojima, T. Togashi, S. Watanabe, C.-T. Chen, C. Q. Zhang, Y. Takano, M. Nagao, I. Sakaguchi, T. Takenouchi, H. Kawarada, and S. Shin,
    Physical Review Letters 98, 047003 (2007).
     
  47. Bulk- and Surface-Sensitive High-Resolution Photoemission Study of Two Mott-Hubbard Systems: SrVO3 and CaVO3.
    R. Eguchi, T. Kiss, S. Tsuda, T. Shimojima, T. Mizokami, T. Yokoya, A. Chainani, S. Shin, I. H. Inoue, T. Togashi, S. Watanabe, C. Q. Zhang, C. T. Chen, M. Arita, K. Shimada, H. Namatame, and M. Taniguchi,
    Physical Review Letters 96, 076402 (2006).
     
  48. Heavy-Fermion-like State in a Transition Metal Oxide LiV2O4 Single Crystal: Indication of Kondo Resonance in the Photoemission Spectrum.
    A. Shimoyamada, S. Tsuda, K. Ishizaka, T. Kiss, T. Shimojima, T. Togashi, S.Watanabe, C. Q. Zhang, C. T. Chen, Y. Matsushita, H. Ueda, Y. Ueda, and S. Shin,
    Physical Review Letters 96, 026403 (2006).
     
  49. Superconducting Gap of Filled Skutterudite Superconductor LaRu4P12 Studied by Sub-meV Resolution Photoemission Spectroscopy.
    S. Tsuda, T. Yokoya, T. Kiss, T. Shimojima, S. Shin, T. Togasi, S. Watanabe, C. Q. Zhang, C. T. Chen, H. Sugawara, H. Sato, and H. Harima,
    Journal of Physical Society of Japan 75, 064711 (2006).
     
  50. Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond.
    K. Ishizaka, R. Eguchi, S. Tsuda, T. Kiss, T. Shimojima, T. Yokoya, S. Shin, T. Togashi, S. Watanabe, C.-T. Chen, C.Q. Zhang, Y. Takano, M. Nagao, I. Sakaguchi, T. Takenouchi, and H. Kawarada,
    Science and Technology of Advanced Materials 7, s17 (2006).
     
  51. Laser-excited ultrahigh-resolution photoemission study of anisotropic s-wave superconductor YNi2B2C.
    T. Baba, T. Yokoya, S. Tsuda, T. Kiss, T. Shimojima, S. Shin, T. Togashi, C.T. Chen, C.Q. Zhang, S. Watanabe, T. Watanabe, M. Nohara, and H. Takagi,
    Physica B 378, 469 (2006).
     
  52. Bulk and surface sensitive high-resolution photoemission study of Mott Hubbard systems SrVO3 and CaVO3.
    R. Eguchi, T. Kiss, S. Tsuda, T. Shimojima, T. Mizokami, A. Chainani, S. Shin, I.H. Inoue, T. Togashi, S. Watanabe, C.Q. Zhang, C.T. Chen, M. Arita, K. Shimada, H. Namatame, and M. Taniguchi,
    Physica B, 378-380, 330 (2006).
     
  53. Angle-Resolved Photoemission Study of the Cobalt Oxide Superconductor NaxCoO2・yH2O : Observation of the Fermi Surface.
    T. Shimojima, K. Ishizaka, S. Tsuda, T. Kiss, T. Yokoya, A. Chainani, S. Shin, P. Badica, K. Yamada, and K. Togano,
    Physical Review Letters 97, 267003 (2006).
     
  54. Laser-excited ultrahigh-resolution photoemission spectroscopy of superconducting Na0.35CoO2ˑ1.3H2O.
    T. Shimojima, T. Yokoya, T. Kiss, A. Chainani, S. Shin, T. Togashi, C. Zhang,C. Chen, S. Watanabe, K. Takada, T. Sasaki, H. Sakurai, and E. Takayama-Muromachi,
    Journal of Physics and Chemistry of Solids, 67, 282 (2006).
     
  55. Hard-X-ray photoelectron spectroscopy of NaxCoO2ˑyH2O.
    A. Chainani, T. Yokoya, Y. Takata, K. Tamasaku, M. Taguchi, T. Shimojima, N. Kamakura, K. Horiba, S. Tsuda, S. Shin, D. Miwa, Y. Nishino, T. Ishikawa, M. Yabashi, K. Kobayashi, H. Namatame, M. Taniguchi, K. Takada, T. Sasaki, H. Sakurai, and E. Takayama-Muromachi,
    Nuclear Instruments and Methods in Physics Research A 547, 163 (2005).
     
  56. Ultrahigh-resolution photoemission spectroscopy of superconductors using a VUV laser.
    T. Kiss, T. Shimojima, F. Kanetaka, K. Kanai, 2, T. Yokoya, S. Shin, Y. Onuki, T. Togashi, C.Q. Zhang, C.T. Chen, and S. Watanabe,
    Journal of Electron Spectroscopy and Related Phenomena 144, 953 (2005).
     
  57. Ultraviolet laser photoemission spectroscopy of FeSi: Observation of a gap opening in density of states.
    K. Ishizaka, T. Kiss, T. Shimojima, T. Yokoya, T. Togashi, S. Watanabe, C. Q. Zhang, C. T. Chen, Y. Onose, Y. Tokura, and S. Shin,
    Physical Review B 72, 233202 (2005).
     
  58. Photocarrier-injected electronic structure of VO2/TiO2:Nb.
    R. Eguchi, S. Shin, A. Fukushima, T. Kiss, T. Shimojima, Y. Muraoka, and Z. Hiroi,
    Applied Physics Letters 87, 201912 (2005).
     
  59. Carbon-substitution dependent multiple superconducting gap of MgB2: A sub-meV resolution photoemission study.
    S. Tsuda, T. Yokoya, T. Kiss, T. Shimojima, S. Shin, T. Togashi, S. Watanabe, C. Zhang, C. T. Chen, S. Lee, H. Uchiyama, S. Tajima, N. Nakai, and K. Machida,
    Physical Review B 72, 064527 (2005).
     
  60. Photoemission Spectroscopic Evidence of Gap Anisotropy in an f-Electron Superconductor.
    T. Kiss, F. Kanetaka, T. Yokoya, T. Shimojima, K. Kanai, S. Shin, Y. Onuki, T. Togashi, C. Zhang, C. T. Chen, and S. Watanabe,
    Physical Review Letters 94, 057001 (2005).
     
  61. Laser-excited ultrahigh-resolution photoemission spectroscopy of NaxCoO2ˑyH2O: Evidence for pseudogap formation.
    T. Shimojima, T. Yokoya, T. Kiss, A. Chainani, S. Shin, T. Togashi, S. Watanabe, C. Zhang,
    C. T. Chen, K. Takada, T. Sasaki, H. Sakurai, and E. Takayama-Muromachi
    Physical Review B 71, 020505(R) (2005).
     
  62. Bulk electronic structure of Na0.35CoO2・1.3H2O.
    A. Chainani, T. Yokoya, Y. Takata, K. Tamasaku, M. Taguchi, T. Shimojima, N. Kamakura, K. Horiba, S. Tsuda, S. Shin, D. Miwa, Y. Nishino, T. Ishikawa, M. Yabashi, K. Kobayashi, H. Namatame, M. Taniguchi, K. Takada, T. Sasaki, H. Sakurai, and E. Takayama-Muromachi,
    Physical Review B 69, 180508(R) (2004).
     
 招待講演
  1. 超高速時間分解電子顕微鏡の現状と展望.
    日本電子株式会社ウェビナー「新領域を切り拓く透過電子顕微鏡とレーザー技術の融合 ~超時間分解TEMおよびレーザー励起その場観察の紹介~」, 2021年, 3月9日
     
  2. 時間分解電子顕微鏡による機能性ナノ材料のダイナミクス観測.
    日本顕微鏡学会超高分解能顕微鏡法分科会, 2020年度研究会「超高時間分解能顕微鏡の進展と展望」, 2021年, 2月19日
     
  3. Ultrafast nematic-orbital excitation in FeSe.
    Research Frontier of Advanced Spectroscopies for Correlated Electron Systems, IMR, Tohoku University, June 13-15, 2019.
     
  4. 超高速電子顕微鏡による機能性ナノ材料のダイナミクス観測.
    顕微ナノ材料科学研究会他合同シンポジウム, 物質材料研究機構, 2019年3月5日.
     
  5. ネマティック電子状態の超高速光応答
    極限コヒーレント光科学セミナー, 東京大学物性研究所, 2018年6月21日.
     
  6. Dynamics of the Nematic Fermi Surface in FeSe Observed by Time-resolved ARPES.
    International Conference on Superconductivity and Magnetism (ICSM) 2018, Antalya, Turkey, May 1, 2018.
     
  7. 時間分解電子回折によるダイナミクス研究.
    表面科学会支部セミナー「量子ビームで視る原子層と表面」, 東京大学, 2017年11月11日.
     
  8. フェムト秒パルス電子を用いた超高速格子ダイナミクスの観測.
    物性研究所短期研究会, 東京大学物性研究所, 2017年6月13日.
     
  9. Nematic electronic structure of the iron-based superconductor FeSe.
    SUPERSTRIPES 2017, Ischia, Italy, June 7, 2017.
     
  10. Nematic electronic structure of the iron-based superconductors.
    Spectroscopies in Novel Superconductors (SNS) 2016, Ludwigsburg, Germany, June 23, 2016.
     
  11. Orbital ordering in Iron-based superconductors observed by angle-resolved photoemission spectroscopy.
    Energy Materials and Nanotechnology (EMN) meeting 2016, Prague, Czech Republic, June 21-24, 2016.
     
  12. FeSeにおけるネマティック電子状態.
    日本物理学会 第71回年次大会 シンポジウム「FeSeのエキゾチック超伝導」, 東北学院大学, 2016年3月19日-22日.
     
  13. Orbital order in FeSe detected by angle-resolved photoemission spectroscopy.
    Energy Materials and Nanotechnology (EMN) meeting 2015, Grand Regency Hotel, Qingdao, China, June 14-17, 2015.
     
  14. FeSeにおける軌道秩序と超伝導:デツイン試料を用いた角度分解光電子分光.
    京都大学基礎物理学研究所研究会, 湯川記念館パナソニック国際交流ホール, 2015年 6月9日.
     
  15. Orbital ordering in Iron-based superconductors observed by angle-resolved photoemission spectroscopy.
    Energy Materials and Nanotechnology (EMN) meeting 2014, The Westin Resort & Spa, Cancun, Mexico, June 9-12, 2014.
     
  16. 鉄系超伝導体における軌道秩序.
    京都大学基礎物理学研究所研究会, 湯川記念館パナソニック国際交流ホール, 2014年10月21日.
     
  17. 角度分解光電子分光から見た鉄系超伝導体の軌道秩序.
    日本物理学会 第69回年次大会 シンポジウム「多軌道電子系としての鉄系高温超伝導体:軌道とスピンの協奏」, 東海大学, 2014年3月27日-30日.
     
  18. 角度分解光電子分光から見た鉄系超伝導体の電子状態.
    Workshop: CROSS roads of Users and J-PARC 第9回「超伝導、磁性とフラストレーション」, KEK東海1号館 116会議室, 2013年12月3日- 5日.
     
  19. BaFe2As2系における擬ギャップ相.
    京都大学基礎物理学研究所研究会「鉄系高温超伝導の物理~スピンと軌道の協奏~」, 湯川記念館パナソニック国際交流ホール, 2013年10月8日-9日.
     
  20. Pseudogap formation above the superconducting dome in iron-pnictides.
    International workshop on “Strong correlations and angle-resolved photoemission spectroscopy” (CORPES13), DESY, Hamburg, Germany, July 29– August 2, 2013.
     
  21. LaFeAsO1-xHxの光電子分光.
    研究会「第3回元素戦略サイエンストーク」, KEK4号館2F輪講室1, 2013年03月 08日.
     
  22. Pseudogap formation in Iron-pnictides observed by Angle-resolved photoemission spectroscopy.
    Energy Materials and Nanotechnology (EMN) meeting 2013, Hilton Houston Post Oak, Houston USA, January 7-10, 2013.
     
  23. Laser angle-resolved photoemission study on iron-pnictides superconductors.
    Energy Materials and Nanotechnology (EMN) meeting 2012, Doubletree by Hilton Orlando at SeaWorld, Florida USA, April 16-20, 2012.
     
  24. レーザー光電子分光から見た鉄系超伝導体の超伝導ギャップ対称性.
    研究会「鉄系超伝導体の対称性」, 名古屋大学シンポジオン, 2010年8月21日.
     
  25. レーザー光電子分光から見た鉄系超伝導体の超伝導ギャップ異方性.
    日本物理学会 第65回年次大会 シンポジウム「鉄系超伝導体のペアリング対称性の最前線」, 岡山大学, 2010年3月21日.
     
  26. Fermi surface of superconducting cobalt oxide probed by angle-resolved photoemission spectroscopy.
    京都大学基礎物理学研究所 短期研究会 「異方的超伝導現象の統一的理解を目指して」, 京都大学基礎物理学研究所湯川記念館, 2005年12月6日-8日.
  著書・解説記事
  1. 電荷密度波物質VTe2における光音響フォノンのナノスケールイメージング.
    中村飛鳥、下志万貴博、石坂香子
    固体物理56, 257 (2021).
     
  2. 鉄系超伝導体における高温超伝導メカニズム.
    下志万貴博
    「超伝導現象と高温超伝導体」, 2013年3月22日 株式会社エヌ・ティー・エス 刊, 3編1章2節「鉄系超伝導体における高温超伝導メカニズム」.
     
  3. 第三の超伝導メカニズムの可能性 -鉄ニクタイド超伝導体.
    下志万貴博、辛埴
    化学 66, 66 (2011).
     
  4. 真空紫外・軟X線レーザーを用いた超高分解能光電子分光.
    辛埴、木須孝幸、石坂香子、下志万貴博、渡部俊太郎、
    固体物理 44, 877 (2009).
  外部資金
  1. 令和元年-3 (2019-2021)年度 文部科学省 科学研究費補助金, 挑戦的研究(萌芽)
    「光渦を用いた固体の新規励起現象の探索」, 研究代表者
     
  2. 平成30-32 (2018-2020)年度 文部科学省 科学研究費補助金, 基盤研究(B)
    「超高速電子顕微鏡によるスキルミオンダイナミクスの観測と制御」, 研究代表者
     
  3. 平成27-29 (2015-2017)年度 文部科学省 科学研究費補助金, 基盤研究(B)
    「強相関超伝導体における電荷・軌道・スピン複合自由度の協奏現象の理論解明」, 研究分担者(研究代表者:紺谷浩)
     
  4. 平成27 (2015)年度 公益財団法人 村田学術振興財団, 研究者海外派遣援助,
    「角度分解光電子分光による鉄系超伝導体の軌道秩序の観測」
     
  5. 平成23-24 (2011-2012)年度 文部科学省 科学研究費補助金, 若手研究(A)
    「フェムト秒時間分解電子線回折による超高速格子ダイナミクスの研究」, 研究代表者
     
  6. 平成22-23 (2010-2011)年度 文部科学省 科学研究費補助金, 研究活動スタート支援
    「レーザー光電子分光による低温超伝導体の超伝導ギャップ対称性の研究」, 研究代表者
     
  7. 平成19-20 (2007-2008)年度 文部科学省 科学研究費補助金, 特別研究員奨励費
    「超高分解能光電子分光によるコバルト酸化物超伝導体の電子状態の研究」, 研究代表者
 
Copyright © Ishizaka Group, Department of Applied Physics and Quantum-Phase Electronics Center, The University of Tokyo. All rights reserved.