東京大学物性研究所 極限コヒーレント光科学研究センター 軌道放射物性研究施設(ISSP-SOR) 原田研究室

論文・発表


  2017年度

8.K. Ishii, T. Tohyama, S. Asano, K. Sato, M. Fujita, S. Wakimoto, K. Tustsui, S. Sota, J. Miyawaki, H. Niwa, Y. Harada, J. Pelliciari, Y. Huang, T. Schmitt, Y. Yamamoto, and J. Mizuki,Phys. Rev. B,accepted.
Observation of momentum-dependent charge excitations in hole-doped cuprates using resonant inelastic x-ray scattering at the oxygen K edge

7.B. Liu, M. van Schooneveld, Y. Cui, J. Miyawaki, Y. Harada, T. Eschemann, K. de Jong, M. Delgado-Jaime, F. de Groot,J. Phys. Chem. C,121 (2017)17450–17456.
In-Situ 2p3d Resonant Inelastic X-ray Scattering Tracking Cobalt Nanoparticle Reduction

6.Kyung Hwan Kim, Harshad Pathak, Alexander Späh, Fivos Perakis, Daniel Pettersson, Jonas A. Sellberg, Tetsuo Katayama, Yoshihisa Harada, Hirohito Ogasawara, Lars G.M. Pettersson, Anders Nilsson,Phys. Rev. Lett.,119 (2017) 075502.
Temperature-Independent Nuclear Quantum Effects on the Structure of Water

5.Anselm W. Hahn, Benjamin E. Van Kuiken, Mustafa al Samarai, Mihal Atanasov, Thomas Wehyermüller, Yitao Cui, Jun Miyawaki, Yoshihisa Harada, Alessandro Nicolaou, and Serena DeBeer,Inorganic Chemistry,56 (2017) 8203-8211.
Measurement of the ligand field spectra of ferrous and ferric iron chlorides using 2p3d RIXS

4.K. Yamazoe, Y. Higaki, Y. Inutsuka, J. Miyawaki, Y. Cui, A. Takahara, and Y. Harada,Langmuir,33 (2017) 3954-3959.
Enhancement of the hydrogen-bonding network of water confined in a polyelectrolyte brush

3.Yitao Cui, Yoshihisa Harada, Hideharu Niwa, Tatsuya Hatanaka, Naoki Nakamura, Masaki Ando, Kenji Ishii, Daiju Matsumura, Hiroshi Oji, Hironori Ofuchi, Masaharu Oshima ,Scientific Reports,7 (2017) 1482 (1-8).
Wetting induced oxidation of Pt-based nano catalysts revealed by in situ high energy resolution X-ray absorption spectroscopy analysis

2.Jun Miyawaki, Shigemasa Suga, Hidenori Fujiwara, Hideharu Niwa, Hisao Kiuchi and Yoshihisa Harada ,J. Sync. Rad.,24 (2017) 449-455.
A Compact Permanent Magnet System for Measuring Magnetic Circular Dichroism in Resonant Inelastic Soft X-ray Scattering

1.Y. Kubota, K. Murata, J. Miyawaki, K. Ozawa, M. Onbasli, T. Shirasawa, B. Feng, Sh. Yamamoto, R.-Y. Liu, S. Yamamoto, S.K. Mahatha, P. Sheverdyaeva, P. Moras, C.A. Ross, S. Suga, Y. Harada, K.L. Wang, and I. Matsuda ,J. Phys. Cond. Matt.,29 (2017) 055002 (1-6).
Interface electronic structure at the topological insulator – ferrimagnetic insulator junction

  2016年度

9.T. Nomura, Y. Harada, H. Niwa, K. Ishii, M. Ishikado, S. Shamoto, and I. Jarrige , Phys. Rev. B94 ,035134(2016)
Resonant inelastic x-ray scattering study of entangled spin-orbital excitations in superconducting PrFeAsO0.7

8.Yitao Cui, Yoshihisa Harada, Tatsuya Hatanaka, Naoki Nakamura, Masaki Ando, Toshihiko Yoshida, Eiji Ikenaga, Kenji Ishii, Daiju Matsumura, Rui Li, Masaharu Oshima , ECS Transaction.72(8),131-136.(2016) .
Electronic Structure of Pt and Pt-Co Nanoparticles with O2 and O2/H2O Adsorption Revealed by In Situ XAFS and Hard X-Ray Photoelectron Spectroscopy

7.Thomas Fransson, Yoshihisa Harada, Nobuhiru Kosugi, Nicholas A. Besley, Bernd Winter, John Rehr, Lars G.M. Pettersson and Anders Nilsson , Chemical Reviews. in press.
X-ray and Electron Spectroscopy of Water

6.Yitao Cui, Yoshihisa Harada, Eiji Ikenaga, Rui Li, Naoki Nakamura, Tatsuya Hatanaka, Masaki Ando, Toshihiko Yoshida, Guo-Ling Li, and Masaharu Oshima , J. Phys. Chem.C. 120 (2016) 10936-10940.
In situ hard X-ray photoelectron study of O2 and H2O adsorption on Pt nanoparticles

5.Yuta Nabae, Shinsuke Nagata, Teruaki Hayakawa, Hideharu Niwa, Yoshihisa Harada, Masaharu Oshima, Ayano Isoda, Atsushi Matsunaga and Kazuhisa Tanaka ,Scientific Reports. 6 (2016) 23276 (1-6).
Pt-free carbon-based fuel cell catalyst prepared from spherical polyimide for enhanced oxygen diffusion

4.Benoit Mortemard de Boisse, Guandong Liu, Jiangtao Ma, Shin-ichi Nishimura, Sai-Cheong Chung, Hisao Kiuchi, Yoshihisa Harada, Jun Kikkawa, Yoshio Kobayashi, Masashi Okubo and Atsuo Yamada ,Nat. Commun. 7 (2016) 11397 (1-9).
Intermediate Honeycomb Ordering to Trigger Oxygen Redox Chemistry in Layered Battery Electrode

3.Hisao Kiuchi, Riku Shibuya, Takahiro Kondo, Junji Nakamura, Hideharu Niwa, Jun Miyawaki, Maki Kawai, Masaharu Oshima and Yoshihisa Harada ,Nanosc. Res. Lett. 11 (2016) 127 (1-7).
Lewis basicity of nitrogen-doped graphite observed by CO2 chemisorption

2.Yusuke Nanba, Tatsumi Iwao, Benoit Mortemard de Boisse, Eiji Hosono, Daisuke Asakura, Hideharu Niwa, Hisao Kiuchi, Jun Miyawaki, Yoshihisa Harada, Masashi Okubo, Atsuo Yamada ,Chem. Mater.28 (2016) 1058-1065.
Redox Potential Paradox in NaxMO2 for Sodium-Ion Battery Cathodes

1.Hisao Kiuchi, Takahiro Kondo, Masataka Sakurai, Donghui Guo, Junji Nakamura, Hideharu Niwa, Jun Miyawaki, Maki Kawai, Masaharu Oshima, and Yoshihisa Harada ,Phys. Chem. Chem. Phys. 18 (2016) 458-465.
Characterization of nitrogen species incorporated into graphite using low energy nitrogen ion sputtering

  2015年度

7.S. Moser, S. Fatale, P. Krüger, H. Berger, P. Bugnon, A. Magrez, H. Niwa, J. Miyawaki, Y. Harada, and M. Grioni ,Phys. Rev. Lett. 115‘ (2015) 096404 (5pages).
Electron-phonon coupling in the bulk of anatase TiO2 measured by RIXS

6.Jiajia WU,Da Zhang, Hideharu Niwa, Yoshihisa Harada, Masaharu Oshima, Hironori Ofuchi, Yuta Nabae, Takeyoshi Okajima, Takeo Ohsaka ,Langmuir, 31 (2015) 5529-5536
Enhancement in Kinetics of the Oxygen Reduction Reaction on a Nitrogen-Doped Carbon Catalyst by Introduction of Iron via Electrochemical Methods

5Yusuke Hiraike, Makoto Saito, Hideharu Niwa, Masaki Kobayashi, Yoshihisa Harada, Masaharu Oshima, Jaehong Kim, Yuta Nabae and Masa-aki Kakimoto ,Nanoscale Research Letters. 10 (2015) 179(11pages).
Active site formation mechanism of carbon-based oxygen reduction catalysts derived from a hyperbranched iron phthalocyanine polymer

4.Yoshifumi Noguchi, Miyabi Hiyama, Hidefumi Akiyama, Yoshihisa Harada, Nobuaki Koga ,J. Chem. Theo. Comp. 11 (2015) 1668-1673
First-Principles Investigation of Strong Excitonic Effects in Oxygen 1s X-Ray Absorption Spectra

3.K. Kurita, D. Sekiba, I. Harayama, K. Chito, Y. Harada, H. Kiuchi, M. Oshima, S. Takagi, M. Matsuo, R. Sato, K. Aoki, S. Orimo ,J. Phys. Soc. Jpn. 84 (2015) 043201(3pages).
Multi-phonon excitations in Fe 2p RIXS on Mg2FeH6

2.D. Asakura, E. Hosono, H. Niwa, H. Kiuchi, J. Miyawaki, Y. Nanba, M. Okubo, H. Matsuda, H.S. Zhou, M. Oshima, and Y. Harada ,Electrochem. Commun. 50 (2015) 93-96.
Operando soft x-ray emission spectroscopy of LiMn2O4 thin film involving Li-ion extraction/insertion reaction

1.Jonas Sellberg, Trevor McQueen?, Hartawan Laksmono, Simon Schreck, Martin Beye, Daniel DePonte?, Brian O’Kennedy, Dennis Nordlund, Raymond Sierra, Daniel Schlesinger, Takashi Tokushima, Sebastian Eckert, Vegard Segtnan, Hirohito Ogasawara, Katharina Kubicek, Simone Techert, U. Bergmann, Georgi Dakovski, William Schlotter, Yoshihisa Harada, Iurii Zhovtobriukh, Michael Bogan, Philippe Wernet, Alexander Föhlisch, Lars Pettersson, and Anders Nilsson,Journal of Chemical Physics, 142 (2015) 044505.
X-ray Emission Spectroscopy of Bulk Liquid Water in “No-man’s Land”

  2014年度

8.I. Matsuda, A. Kuroda, J. Miyawaki, Y. Kosegawa, S. Yamamoto, T. Seike, T. Bizen, Y. Harada, T. Tanaka, and H. Kitamura ,Nuclear Instruments and Methods in Physics Research Section A 767 (2014) 296
Development of an electromagnetic phase shifter using a pair of cut-core coils for a cross undulator

7.Daisuke Asakura, Yusuke Nanba, Masashi Okubo, Yoshifumi Mizuno, Hideharu Niwa, Masaharu Oshima, Haoshen Zhou, Kozo Okada, and Yoshihisa Harada ,J. Phys. Chem. Lett. 5 (2014) 4008–4013
Distinguishing Between High- and Low-spin States for Divalent Mn in K2Mn[Mn(CN)6] by High Resolution Soft X-ray Emission Spectroscopy

6.Masaki Kobayashi, Iriya Muneta, Yukiharu Takeda, Yoshihisa Harada, Atsushi Fujimori, Juraj Krempaský, Thorsten Schmitt, Shinobu Ohya, Masaaki Tanaka, Masaharu Oshima, Vladimir N Strocov ,Phys. Rev. B 89 (2014) 205204
Unveiling the impurity band induced ferromagnetism in the magnetic semiconductor (Ga, Mn) As

5.Simon Schreck, Martin Beye, Jonas A. Sellberg, Trevor McQueen?, Hartawan Laksmono, Brian Kennedy, Sebastian Eckert, Daniel Schlesinger, Dennis Nordlund, Hirohito Ogasawara, Raymond G. Sierra, Vegard H. Segtnan, Katharina Kubicek, William F. Schlotter, Georgi L. Dakovski, Stefan P. Moeller, Uwe Bergmann, Simone Techert, Lars G. M. Pettersson, Philippe Wernet, Michael J. Bogan, Yoshihisa Harada, Anders Nilsson, and Alexander Föhlisch ,Phys. Rev. Lett. 113 (2014) 153002 1-6
Reabsorption of soft x-ray emission at high x-ray free-electron laser fluences

4.M. Kobayashi, L. D. Anh, P. N. Hai, Y. Takeda, S. Sakamoto, T. Kadono, T. Okane, Y. Saitoh, H. Yamagami, Y. Harada, M. Oshima, M. Tanaka, A. Fujimori, ,Appl. Phys. Lett. 105 (2014) 032403 1-4
Spin and orbital magnetic moments of Fe in the n-type ferromagnetic semiconductor (In,Fe)As

3.K. Kamiya, H. Koshikawa, H. Kiuchi, Y. Harada, M. Oshima, K. Hashimoto, S. Nakanishi, ,ChemElectroChem. 1 (2014) 877-884
Iron–Nitrogen Coordination in Modified Graphene Catalyzes a Four-Electron-Transfer Oxygen Reduction Reaction

2.M. Kobayashi, H. Niwa, Y. Takeda, A. Fujimori, Y. Senba, H. Ohashi, A. Tanaka, S. Ohya, P. N. Hai, M. Tanaka, Y. Harada, and M. Oshima, ,Phys. Rev. Lett., 112 (2014) 107203 (1-5).
Electronic excitations of magnetic impurity state in diluted magnetic semiconductor (Ga,Mn)As

1.Susumu Yamamoto, Yasunori Senba, Takashi Tanaka, Haruhiko Ohashi, Toko Hirono, Hiroaki Kimura, Masami Fujisawa, Jun Miyawaki, Ayumi Harasawa, Takamitsu Seike, Sunao Takahashi, Nobuteru Nariyama, Tomohiro Matsushita, Masao Takeuchi, Toru Ohata, Yukito Furukawa, Kunikazu Takeshita, Shunji Goto, Yoshihisa Harada, Shik Shin, Hideo Kitamura, Akito Kakizaki, Masaharu Oshima, Iwao Matsuda ,Journal of Synchrotron Radiation . 21 (2014) 352-365
New soft X-ray beamline BL07LSU at SPring-8

  2013年度

5. Takashi Tokushima, Yuka Horikawa, Osamu Takahashi, Hidemi Arai, Koichiro Sadakane, Yoshihisa Harada, Yasutaka Takata and Shik Shin,Phys. Chem. Chem. Phys.,(2014), DOI: 10.1039/c4cp00762j.
Solvation dependence of valence electronic states of water diluted in organic solvents probed by soft X-ray spectroscopy

4.M. Kobayashi, H. Niwa, Y. Takeda, A. Fujimori, Y. Senba, H. Ohashi, A. Tanaka, S. Ohya, P. N. Hai, M. Tanaka, Y. Harada, M. Oshima,Phys. Rev. Lett. 112,107203 (2014).
Electronic Excitations of Magnetic Impurity State in Diluted Magnetic Semiconductor (Ga,Mn)As

3.K. Kamiya, H. Koshikawa, H. Kiuchi, Y. Harada, M. Oshima, K. Hashimoto, S. Nakanishi, ChemElectroChem, DOI: 10.1002/celc.201300181.
Iron–Nitrogen Coordination in Modified Graphene Catalyzes a Four-Electron-Transfer Oxygen Reduction Reaction

2.H. Niwa, H. Kiuchi, J. Miyawaki, Y. Harada, M. Oshima, Y. Nabae and T. Aoki, Electrochemistry communications 35, 57 (2013).
Operando Soft X-ray Emission Spectroscopy of Iron Phthalocyanine-based Catalysts for Oxygen Reduction Reaction

1.Y. Harada, T. Tokushima, Y. Horikawa, O. Takahashi, H. Niwa, M. Kobayashi, M. Oshima, Y. Senba, H. Ohashi, K. T. Wikfeldt, A. Nilsson, L. G. M. Pettersson, S. Shin, Phys. Rev. Lett. 111, 193001 (2013).
Selective Probing of the OH or OD Stretch Vibration in Liquid Water Using Resonant Inelastic Soft-X-Ray Scattering

  2012年度

5.S. Kawasaki, K. Akagi, K. Nakatsuji, S. Yamamoto, I. Matsuda, Y. Harada, J. Yoshinobu, F. Komori, R. Takahashi, M. Lippmaa, C. Sakai, H. Niwa, M. Oshima, K. Iwashina, A. Kudo, J. Phys. Chem. C 116, 24445 (2012).
Elucidation of Rh-induced in-gap states of Rh:SrTiO3 visible-light-driven photocatalyst by soft x-ray spectroscopy and first-principles calculations

4.Hideharu Niwa, Makoto Saito, Masaki Kobayashi, Yoshihisa Harada, Masaharu Oshima, Shogo Moriya, Katsuyuki Matsubayashi, Yuta Nabae, Shigeki Kuroki, Takashi Ikeda, Kiyoyuki Terakura, Jun-ichi Ozaki, Seizo Miyata, J. Power Sources 223, 30 (2013).
Probing carbon edge exposure of iron phthalocyanine-based oxygen reduction catalysts by soft X-ray absorption spectroscopy

3. Hisao Kiuchi, Hideharu Niwa, Masaki Kobayashi, Yoshihisa Harada, Masaharu Oshima, Masayuki Chokai, Yuta Nabae, Shigeki Kuroki, Masa-aki Kakimoto, Takashi Ikeda, Kiyoyuki Terakura and Seizo Miyta,Electrochim. Acta 82, 291 (2012).
Study on the oxygen adsorption property of nitrogen-containing metal-free carbon-based cathode catalysts for oxygen reduction reaction

2. Shoichi HIDAI, Masaki KOBAYASHI, Hideharu NIWA, Yoshihisa HARADA, Masaharu OSHIMA, Yoji NAKAMORI, Tsutomu AOKI, J. Power Sources 215, 233 (2012).
Platinum Oxidation Responsible for Degradation of Platinum-Cobalt Alloy Cathode Catalysts for Polymer Electrolyte Fuel Cells

1. Masaki Kobayashi,* Hideharu Niwa, Makoto Saito, Yoshihisa Harada, Masaharu Oshima, Hironori Ofuchi, Kiyoyuki Terakura, Takashi Ikeda, Yuka Koshigoe, Jun-ichi Ozaki, and Seizo Miyata, Electrochim. Acta74, 254 (2012).
Indirect contribution of transition metal towards oxygen reduction reaction activity in iron phthalocyanine-based carbon catalysts for polymer electrolyte fuel cells

  2011年度

7. Y. Harada, M. Kobayashi, H. Niwa, Y. Senba, H. Ohashi, T. Tokushima, Y. Horikawa, S. Shin, and M. Oshima, Rev. Sci. Instrum.83, 013116 (2012). 
Ultrahigh resolution soft x-ray emission spectrometer at BL07LSU in SPring-8

6. T. Tokushima, Y. Horikawa, H. Arai, Y. Harada, O. Takahashi, L. Pettersson, A. Nilsson, S. Shin, J. Chem. Phys. 136, 044517 (2012).
Polarization dependent resonant x-ray emission spectroscopy of D2O and H2O water; assignment of the local mo-lecular orbital symmetry

5. H. Arai, Y. Horikawa, K. Sadakane, T. Tokushima, Y. Harada, Y. Senba, H. Ohashi, Y. Takata, S. Shin, Phys. Chem. Chem. Phys. 14, 1576 (2012).
Hydrogen bonding of water in 3-methylpyridine studied by O 1s X-ray emission and absorption spectroscopy

4. M. Kobayashi, H. Niwa, Y. Harada, K. Horiba, M. Oshima, H. Ofuchi, K. Terakura, T. Ikeda, Y. Koshigoe, J. Ozaki, S. Miyata, S. Ueda, Y. Yamashita, H. Yoshikawa, K. Kobayashi, J. Power Sources 196, 8346
(2011).
Role of residual transition metal atoms in oxygen reduction reaction in cobalt phthalocyanine-based carbon cathode catalysts for polymer electrolyte fuel cell

3. S. Hidai, M. Kobayashi, H. Niwa, Y. Harada, M. Oshima, Y. Nakamori, T. Aoki, J. Power Sources 196, 8340 (2011).
Changes in electronic states of platinum-cobalt alloy catalyst for polymer electrolyte fuel cells by potential cycling

2. H. Niwa, M. Kobayashi, K. Horiba, Y. Harada, M. Oshima, K. Terakura, T. Ikeda ,Y. Koshigoe, J. Ozaki, S. Miyata, S. Ueda, Y. Yamashita, H. Yoshikawa, K. Kobayashi, J. Power Sources 196, 1006 (2011).
X-ray photoemission spectroscopy analysis of N-containing carbon-based cathode catalysts for polymer electrolyte fuel cells

1. M. Oshima, H. Niwa, M. Saito, M. Kobayashi, K. Horiba, Y. Harada, K. Terakura, T. Ikeda, J. Ozaki, Y. Nabae and S. Miyata, Mater. Res. Soc. Symp. Proc. 1318, 437 (2011).
Electronic Structures of Non-Pt Carbon Alloy Catalysts for Polymer Electrolyte Membrane Fuel Cells Revealed by Synchrotron Radiation Analyses

  presentations