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| "High-Harmonic Generation in a Correlated Electron System" Shohei Imai, Atsushi Ono, Sumio Ishihara Phys. Rev. Lett. 124, 157404 (2020). Editors' Suggestions | 
| "Optical Response in Excitonic Insulating State: Variational Cluster Approach" Hengyue Li, Junya Otsuki, Makoto Naka, Sumio Ishihara Phys. Rev. B 101, 125117 (2020). | 
| "Nonequilibrium susceptibility in photoinduced Floquet states" Atsushi Ono and Sumio Ishihara Phys. Rev. B 100, 075127 (2019). | 
| "Photoinduced Ultrafast Phenomena in Correlated Electron Magnets" (invited review papers) Sumio Ishihara J. Phys. Soc. Jpn. 88, 023703-1-28 (2019). | 
| "Photoinduced topological spin texture in a metallic ferromagnet" Atsushi Ono, and Sumio Ishihara J. Phys. Soc. Jpn. 88, 023703-1-4 (2019). | 
| "Orbital-selective confinement effect of Ru 4d orbitals in SrRuO3 ultrathin film" Soonmin Kang, Yi Tseng, Beom Hyun Kim, Seokhwan Yun, Byungmin Sohn, Bongju Kim, Daniel McNally, Eugenio Paris, Choong H. Kim, Changyoung Kim, Tae Won Noh, Sumio Ishihara, Thorsten Schmitt, and Je-Geun Park Phys. Rev. B 99, 045113 (2019). | 
| "Charge disproportionation of Mn 3d and O 2p electronic states depending on strength of p-d hybridization in (LaMnO3)2(SrMnO3)2 superlattices" Hironori Nakao, Chihiro Tabata, Youichi Murakami, Yuichi Yamasaki, Hiroyuki Yamada, Sumio Ishihara, and Masashi Kawasaki Phys. Rev. B 98, 245146 (2018). | 
| "Photocontrol of magnetic structure in an itinerant magnet" Atsushi Ono and Sumio Ishihara Phys. Rev. B 98, 214408 (2018). | 
| "Photoinduced collective mode, inhomogeneity, and melting in a charge-order system" Hitoshi Seo, Yasuhiro Tanaka, and Sumio Ishihara Phys. Rev. B 98, 235150 (2018). | 
| "
Probing ultrafast spin-relaxation and precession dynamics in a cuprate Mott insulator with seven-femtosecond optical pulses" T. Miyamoto, Y. Matsui, T. Terashige, T. Morimoto, N. Sono, H. Yada, S. Ishihara, Y. Watanabe, S. Adachi, T. Ito, K. Oka, A. Sawa & H. Okamoto Nature Communications 9, 3948 (2018). | 
| "Quantum Paramagnet Near Spin]State Transition" K. Tomiyasu, N. Ito, R. Okazaki, Y. Takahashi, M. Onodera, K. Iwasa, T. Nojima, T. Aoyama, K. Ohgushi, Y. Ishikawa, T. Kamiyama, S. Ohira]Kawamura, M. Kofu, S. Ishihara Advanced Quantum Technologies, 1800057 (2018) | 
| "Nonlinear charge oscillation driven by a single-cycle light field in an organic superconductorr" Y. Kawakami, T. Amano, Y. Yoneyama, Y. Akamine, H. Itoh, G. Kawaguchi, H. M. Yamamoto, H. Kishida, K. Itoh, T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu and S. Iwai Nature Photonics 12, 474-478 (2018) | 
| "Electronic state and optical response in a hydrogen-bonded molecular conductor" Makoto Naka and Sumio Ishihara Phys. Rev. B 97, 245110 (2018). | 
| "Magnetoelectric Effect in a Spin-State Transition System" M. Naka, E. Mizoguchi, J. Nasu, and S. Ishihara J. Phys. Soc. Jpn. 87, 063709 (2018). | 
| "Quantum-disordered state of magnetic and electric dipoles in an organic Mott system" M. Shimozawa, K. Hashimoto, A. Ueda, Y. Suzuki, K. Sugii, S. Yamada, Y. Imai, R. Kobayashi, K. Itoh, S. Iguchi, M. Naka, S. Ishihara, H. Mori, T. Sasaki and M. Yamashita Nature Communications 8, 1821 (2017). | 
| "Double-Exchange Interaction in Optically Induced Nonequilibrium State: A Conversion from Ferromagnetic to Antiferromagnetic Structure" Atsushi Ono and Sumio Ishihara Physicsl Review Letters 119,207202 (2017). Editors' Suggestions | 
| "Coulomb Correlations Intertwined with Spin and Orbital Excitations in LaCoO3" K. Tomiyasu, J. Okamoto, H. Y. Huang, Z. Y. Chen, E.?P. Sinaga, W. B. Wu, Y. Y. Chu, A. Singh, R.-P. Wang, F. M. F. de Groot, A. Chainani, S. Ishihara, C. T. Chen, and D. J. Huang Physicsl Review Letters 119, 196402 (2017). | 
| "Spin and charge fluctuations near metal-insulator transition in dimer-type molecular solid" N. Sato, T. Watanabe, M. Naka, S. Ishihara J. Phys. Soc. Jpn. 86, 053701-1-5 (2017). | 
| "Optical suppression of electron motion in low-dimensional correlated electron system" Atsushi Ono, Hiroshi Hashimoto, and Sumio Ishihara Phys. Rev. B 95, 085123 (2017). | 
| "Photoinduced charge-order melting dynamics in a one-dimensional interacting Holstein model" Hiroshi Hashimoto and Sumio Ishihara Phys. Rev. B 96, 035154 (2017). | 
| "Polarization selectivity of charge localization induced by 7-fs nearly single-cycle light-field in an organic metal" Y. Kawakami, Y. Yoneyama, T. Amano, H. Itoh, K. Yamamoto, Y. Nakamura, H. Kishida, T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu, and S. Iwai Phys. Rev. B 95, 201105(R)-1-5(2017). | 
| "Magnetic field effects in a correlated electron system with spin-state degree of freedom 
      - Implication of an excitonic insulator -" T. Tatsuno, E. Mizoguchi, J. Nasu, M. Nasu, and S. Ishihara J. Phys. Soc. Jpn. 85, 083706-1-5 (2016). | 
| "Pulse excitation to continuous-wave excitation in a low-dimensional interacting quantum system" A. Ono, H. Hashimoto and S. Ishihara Phys. Rev. B 94, 115152-1-8 (2016). KALEIDOSCOPE | 
| "Quantum Melting of Magnetic Order in an Organic Dimer-Mott Insulating System" M. Naka and S. Ishihara Phys. Rev. B 93,195114-1-5 (2016) | 
| "Ultrafast response of plasma-like reflectivity edge in (TMTTF)2AsF6 driven by 7-fs, 1.5-cycle strong-light field" Y. Naitoh, Y. Kawakami, T. Ishikawa, Y. Sagae, H. Itoh, K. Yamamoto, T. Sasaki, M. Dressel, S. Ishihara, Y. Tanaka, K. Yonemitsu, and S. Iwai Phys. Rev. B 93, 165126-1-5 (2016) | 
| "Phase diagram and collective excitation in excitonic insulator: from the  orbital physics viewpoint" Joji Nasu, Tsutomu Watanabe, Makoto Naka, Sumio Ishihara Phys. Rev. B 93,205136-1-15 (2016) | 
| "Observation of momentum-resolved charge fluctuations proximate to the charge-order phase using resonant inelastic x-ray scattering" M. Yoshida, K. Ishii, M. Naka, S. Ishihara, I. Jarrige, K. Ikeuchi, Y. Murakami, K. Kudo, Y. Koike, T. Nagata, Y. Fukada, N. Ikeda and J. Mizuki Scientific Report 6, 23611-1-8 (2015) | 
| "Photoinduced correlated electron dynamics in a two-leg ladder Hubbard system" H. Hashimoto, and S. Ishihara Phys. Rev. B 93, 165133-1-10 (2016) | 
| "Ultrafast electronic state conversion at room temperature utilizing hidden state in cuprate ladder system" R. Fukaya, Y. Okimoto, M. Kunitomo, K. Onda, T. Ishikawa, S. Koshihara, H. Hashimoto, S. Ishihara, A. Isayama, H. Yui and T. Sasagawa Nat. Comm. 6, 8519-1-7 (2015) | 
| "Magnetoelectric effect in organic molecular solids" M. Naka and S. Ishihara Scientific Report 6, 20781-1-7 (2015) | 
| "Photo-Induced Phase Transition in Charge Order Systems --Charge Frustration and Interplay with Lattice--" H. Hashimoto, H. Matsueda, H. Seo, and S. Ishihara J. Phys. Soc. Jpn. 84, 113702-1-5 (2015) | 
| "Absence of Jahn-Teller transition in the hexagonal Ba3CuSb2O9 single crystal" N. Katayama, K. Kimura, Y. Hanc, J. Nasue, N. Drichko, Y. Nakanishi, M. Halim, Y. Ishiguro, R. Satake, E. Nishibori, M. Yoshizawa, T. Nakano, Y. Nozue, Y. Wakabayashi, S. Ishihara, M. Hagiwara, H. Sawa, and S. Nakatsuji Proc. Natl. Acad. Sci. (USAj 112, 9305-9309 (2015) | 
| "Emergence of charge degrees of freedom under high pressure in the organic dimer-Mott insulator ƒÀ'-(BEDT-TTF)2ICl2" K. Hashimoto, R. Kobayashi, H. Okamura, H. Taniguchi, Y. Ikemoto, T. Moriwaki, S. Iguchi, M. Naka, S. Ishihara, and T. Sasaki Phys. Rev. B 92, 085149-1-7 (2015) | 
| "Charge Dynamics in a Correlated Fermion System on a Geometrically Frustrated Lattice" M. Naka and S. Ishihara J. Phys. Soc. Jpn. 84, 023703-1-4 (2015) | 
| "Resonating Valence-Bond State in an Orbitally Degenerate Quantum Magnet with Dynamical Jahn-Teller Effect " J. Nasu and S. Ishihara Phys. Rev. B 91, 045117-1-8 (2015) | 
| "Optical freezing of charge motion in an organic conductor " T. Ishikawa, Y. Sagae, Y. Naitoh, Y. Kawakami, H. Itoh, K. Yamamoto, K. Yakushi, H. Kishida, T. Sasaki, S. Ishihara, Y. Tanaka, K. Yonemitsu and S. Iwai Nat. Comm. 5, 5528-1-6 (2014) | 
| "Photo-Induced Dynamics in Charge-Frustrated Systems " H. Hashimoto, H. Matsueda, H. Seo and S. Ishihara J. Phys. Soc. Jpn. 83, 123703-1-4 (2014) | 
| "Electronic Ferroelectricity in Molecular Organic Crystals " S. Ishihara J. Phys.: Cond. Matt. 26, 493201-1-12 (2014) | 
| "Erratum: Dynamical Jahn-Teller effect in a spin-orbital coupled system [Phys. Rev. B 88, 094408 (2013)]" J. Nasu and S. Ishihara Phys. Rev. B 90, 179903 (2014). | 
| "Transient Carrier Dynamics in a Mott Insulator with Antiferromagnetic Order " E. Iyoda, and S. Ishihara Phys. Rev. B 89, 125126-1-13 (2014) KALEIDOSCOPE | 
| "Vibronic excitation dynamics in orbitally degenerate correlated electron system " J. Nasu and S. Ishihara Phys. Rev. B 88, 205110 (2013) Editors' Suggestion | 
| "Narrowing of phonon spectrum induced by ultrafast charge fluctuations in an organic dimer Mott insulator " K. Itoh, H. Itoh, S. Saito, I. Hosako, Y. Nakamura, H. Kishida, N. Yoneyama, T. Sasaki, S. Ishihara, and S. Iwai Phys. Rev. B 88, 125101-1-6 (2013) | 
| "Spin-state responses to light impurity substitution in low-spin perovskite LaCoO3 " K. Tomiyasu, Y. Kubota, S. Shimomura, M. Onodera, S. Koyama, T. Nojima, S. Ishihara, H. Nakao, and Y. Murakami Phys. Rev. B 87, 224409-1-8 (2013) | "Polar Charge Fluctuation and Superconductivity in Organic Conductor  " A. Sekine, J. Nasu, and S. Ishihara Phys. Rev. B 87, 085133-1-6 (2013) | 
| "Band and Mott Insulators and Superconductivity in Honeycomb-Lattice Ionic-Hubbard Model  " T. Watanabe, and S. Ishihara J. Phys. Soc. Jpn. 82, 034704-1-7 (2013) | 
| "Dynamical Jahn-Teller Effect in Spin-Orbital Coupled System " J. Nasu, and S. Ishihara Phys. Rev. B 88, 094408-1-6 (2013) | 
| "Collective Charge Excitation in a Dimer Mott Insulating System " M. Naka, and S. Ishihara J. Phys. Soc. Jpn. 82, 023701-1-5 (2013) | 
| "Collective
                  excitation of electric dimer dipole in organic dimer                  Mott insulator" K. Itoh, H. Itoh, M. Naka, S. Saito, I. Hosako, N. Yoneyama, S. Ishihara, T. Sasaki, S. Iwai Phys. Rev. Lett. 110, 106401-1-4 (2013) | 
| "Photoinduced
                  magnetic bound state in itinerant correlated electron                  system with spin-state degree of freedom" Yu Kanamori, Jun Ohara and Sumio Ishihara Phys. Rev. B 86, 045137-1-14 (2012) | 
| "Optical
                   manipulation of magnetism in spin-charge coupled                    correlated electron system" Jun Ohara, Yu Kanamori, and Sumio Ishihara Phys. Rev. B 88, 085107-1-7 (2013) | 
| "Ordering and                    excitation in orbital compass model on a                    checkerboard lattice" Joji Nasu, Synge Todo, and Sumio Ishihara Phys. Rev. B 85, 205141-1-12 (2012) | 
| "Orbital
                    Compass Model as an Itinerant Electron System" J. Nasu and S. Ishihara Europhys. Lett. 97, 27002-1-6 (2012) | 
| "Photoinduced
                    Change in the Spin State of Itinerant Correlated                    Electron Systems" Y. Kanamori, H. Matsueda and S. Ishihara Phys. Rev. Lett. 107, 167403-1-5 (2011) | 
| "Polarization-analyzed
                    resonant inelastic x-ray scattering of the orbital                    excitations in KCuF3" K. Ishii, S. Ishihara, Y. Murakami, K. Ikeuchi, K. Kuzushita, T. Inami, K. Ohwada, M. Yoshida, I. Jarrige, N. Tatami, S. Niioka, D. Bizen, Y. Ando, J. Mizuki, S. Maekawa and Y. Endoh Phys. Rev. B 83, 241101-1-4 (2011) Editors' Suggestion | 
| "Ring-Exchange
                    Interaction in Doubly Degenerate Orbital System" J. Nasu and S. Ishihara J. Phys. Soc. Jpn. 80, 033704-1-4 (2011) | 
| "Quantum
                    Dielectric Fluctuation in an Electronic                    Ferroelectricity studied by Variational Monte-Carlo                    Method" T. Watanabe and S. Ishihara J. Phys. Soc. Jpn. 79, 114714-1-10 (2010) | 
| "Numerical
                    Study of Photo-Induced Dynamics in Double-Exchange                    Model" Y. Kanamori, H. Matsueda and S. Ishihara Phys. Rev. B 82, 115101-1-14 (2010) | 
| "Electronic
                    Ferroelectricity in a Dimer Mott Insulator" M. Naka and S. Ishihara J. Phys. Soc. Jpn. 79, 063707-1-4 (2010) Editors' Choice | 
| "Electronic
                    ferroelectricity and frustration" S. Ishihara J. Phys. Soc. Jpn. 79, 011010-1-11 (2010) Special Topics "Novel States of Matter Induced by Frustration" | 
| "Dynamical
                    Coupling and Separation of Multiple Degrees of                    Freedom in a Photoexcited Double-Exchange Systeml" Y. Kanamori, H. Matsueda and S. Ishihara Phys. Rev. Lett. 103, 267401-1-4 (2009) | 
| "Quantum
                    fluctuation and geometrical frustration effects on                    electric polarization" T. Watanabe and S. Ishihara J. Phys. Soc. Jpn. 78, 113702-1-4 (2009) | 
| "Spin
                    state transition and phase separation in a                    multiorbital Hubbard model" R. Suzuki, T. Watanabe and S. Ishihara Phys. Rev. B 80, 054410-1-5 (2009) | 
| "Dilution
                    effect in correlated electron system with orbital                    degeneracy" T. Tanaka and S. Ishihara Phys. Rev. B 79, 035109-1-11 (2009) | 
| "Numerical
                    study of t2g orbital system with                    ferromagnetic polarization" T. Tanaka and S. Ishihara Phys. Rev. B 78, 153106-1-4 (2008) | 
| "Doubly
                    degenerate orbital system in honeycomb lattice:                    implication of orbital state in layered iron oxide" J. Nasu, A. Nagano, M. Naka and S. Ishihara Phys. Rev. B 78, 024416-1-12 (2008) | 
| "Magneto-dielectric
                    phenomana in charge and spin frustrated system of                    layered iron oxide" M. Naka, A. Nagano and S. Ishihara Phys. Rev. B 77, 224441-1-15 (2008) Editors' Suggestion | 
| "Electric
                    Polarization, Magnetoelectric Effect and Orbital                    State of Layered Iron Oxide with Frustrated                    Geometry" A. Nagano, M. Naka, J. Nasu and S. Ishihara Phys. Rev. Lett. 99, 217202-1-4 (2007) | 
| "Photoinduced
                    charge and spin dynamics in strongly correlated                    electron system" H. Matsueda and S. Ishihara J. Phys. Soc. Jpn. 76, 083703-1-4 (2007) | 
| "Dilution
                    Effects in Two-dimensional Quantum Orbital System" T. Tanaka and S. Ishihara Phys. Rev. Lett. 98, 256402-1-4 (2007) | 
| "Randomly
                    Diluted eg Orbital-Ordered Systems" T. Tanaka, M. Matsumoto and S. Ishihara Phys. Rev. Lett. 95, 267204-1-4 (2005) | 
| "Charge
                    transfer excitation at the interface of manganite                    hetero-structure" T. Satoh, K. Miyano, Y. Ogimoto, H. Tamaru, and S. Ishihara @@ Phys. Rev. B. 72, 224403-1-4 (2005) | 
| "Theory
                    and experiment of orbital excitations in correlated                    oxides" S. Ishihara, Y. Murakami, T. Inami, K. Ishii, J. Mizuki, K. Hirota, S. Maekawa and Y. Endoh New J. Phys. 7, 119-1-24 (2005) | 
| "Hole
                    dynamics in spin and orbital ordered vanadium                    perovskites" S. Ishihara Phys. Rev. Lett. 94, 156408-1-4 (2005) | 
| "Resonant
                    inelastic x-ray scattering study of hole-doped                    manganites La1-xSrxMnO3                    (x=0.2 and 0.4)" K. Ishii, T. Inami, K. Ohwada, K. Kuzushita, J. Mizuki, Y. Murakami, S. Ishihara, Y. Endoh, S. Maekawa, K. Hirota and Y. Moritomo Phys. Rev. B 70, 224437-1-6 (2004) | 
| "Interplay
                    of Electron-Phonon Interaction and Electron                    Correlation in High Temperature Superconductivity" S. Ishihara and N. Nagaosa Phys. Rev. B 69, 144520-1-13 (2004) | 
| "Obital
                    Wave and its Observation in Orbital Ordered                    Titanates and Vanadates" S. Ishihara Phys. Rev. B 69, 075118-1-9 (2004) | 
| "Ferromagnetic
                    Insulating Phase in Pr1-xCaxMnO3" R. Kajimoto, H. Mochizuki, H. Yoshizawa, S. Okamoto and S. Ishihara Phys. Rev. B 69, 054433-1-10 (2004) | 
| "Distorted
                    Perovskite with eg1                    Configuration as a Frustrated Spin System" T. Kimura, S. Ishihara, K. T. Takahashi, H. Shintani and Y. Tokura Phys. Rev. B 68, 060403-1-4 (2003) | 
| "Orbital
                    Excitations in CMR Progenitor of LaMnO3                    studied by Resonant Inelastic X-ray Scattering" T. Inami,T. Fukuda, J. Mizuki, S. Ishihara, H. Kondo, H. Nakao, T. Matsumura, K. Hirota, Y. Murakami, S. Maekawa and Y. Endoh Phys. Rev. B 67, 045108-1-6 (2003) | 
| "Quantitative
                    Determination of the Orbital Ordering in YTiO3 by                    using Resonant X-ray Scattering Technique" H. Nakao, Y. Wakabayashi, T. Kiyama, Y. Murakami, M. v. Zimmermann, J. P. Hill, D. Gibbs, S. Ishihara, Y. Taguchi and Y. Tokura Phys. Rev. B 66, 184419-1-7 (2002) | 
| "Theory
                    of Raman Scattering from Orbital Excitations in                    Manganese Oxides" S. Okamoto, S. Ishihara and S. Maekawa Phys. Rev. B 66, 014435-1-9 (2002) | 
| "Role
                    of electron-phonon interaction in the strongly                    correlated cuprates superconductors" Z. -X. Shen, A. Lanzara, S. Ishihara and N. Nagaosa | 
| "Orbital
                    Ordering in LaMnO3: Electron-electron and                    electron-lattice interactions" S. Okamoto, S. Ishihara and S. Maekawa Phys. Rev. B 65, 144403-1-8 (2002) | 
| "Observation
                    of the Antiferroquadrupolar Ordering in DyB2C2                    by Resonant X-Ray Scattering" T. Matsumura, N. Oumi, K. Hirota, Y. Wakabayashi, H. Nakano, Y. Murakami, T. Arima, S. Ishihara and Y. Endoh Phys. Rev. B 65, 094420-1-11 (2002) | 
| "Magnetic
                    Ordering, Orbital Ordering and Resonant X-ray                    Scattering in Perovskite Titanates" S. Ishihara, T. Hatakeyama and S. Maekawa Phys. Rev. B 65, 064442-1-9 (2002) | 
| "Spin
                    Dynamical Properties and Orbital States of the                    Layered Perovskite La2-2xSr1+2xMn2O7                    (0.3< x < 0.5)" K. Hirota, S. Ishihara, H. Fujioka, M. Kubota, H. Yoshizawa, Y. Moritomo, Y. Endoh and S. Maekawa Phys. Rev. B 65, 064414-1-10 (2002) | 
| "Field
                    Induced Orbital Order-Disorder Transition in an                    A-type Antiferromagnetic Manganite: High Field Study                    of Nd0.45Sr0.55MnO3" T. Hayashi, N. Miura, K. Noda, H. Kuwahara, S. Okamoto, S. Ishihara and S. Maekawa Phys. Rev. B 65, 024408-1-5 (2002) | 
| "Resonant
                    X-ray Scattering in Manganites - Study of Orbital                    Degree of Freedom -" S. Ishihara and S. Maekawa Rep. Prog. Phys. 65, 561-598 (2002) | 
| "Resonant
                    Inelastic X-ray Scattering from Charge and Orbital                    Excitations in Manganites" H. Kondo, S. Ishihara and S. Maekawa Phys. Rev. B 64, 014414-1-8 (2001) | 
| "Observation
                    of orbital waves as elementary excitations in a                    solid" E. Saitoh, S. Okamoto, K. T. Takahashi, K. Tobe, K. Yamamoto, T. Kimura, S. Ishihara, S. Maekawa, and Y. Tokura | 
| "Orbital
                    Structure and Magnetic Ordering in Layered                    Manganites: Universal Correlation and Its Mechanism" S. Okamoto, S. Ishihara and S. Maekawa Phys. Rev. B 63, 104401-1-6 (2001) | 

