業績

1.First-principles molecular dynamics simulations for the properties of boron-doped tetrahedral amorphous carbon
Q. Yue, T. Yokoya, Y. Muraoka
Diam. Relat. Mater. 143, 110894 (2024).



1.Temperature dependent local inhomogeneity and magnetic moments of (Li1-xFex)OHFeSe superconductors
G. Tomassucci, L. Tortora, G. M. Pugliese, F. Stramaglia, L. Simonelli, C. Marini, K. Terashima, T. Wakita, S. Ayukawa, T. Yokoya, K. Kudo, M. Nohara, T. Mizokawa, N.L. Saini
Physical Chemistry Chemical Physics 25, 6684-6692 (2023).

2. Self-organized vertical multilayer structures in spinodally decomposed TiO2-VO2 films on glass substrates
Y. Muraoka, K. Takeda, Y. Takemoto, T. Wakita, T. Yokoya
Thin Solid Films 769, 139749 (2023).

3. Synthesis and Characterization of a Trigonal Layered Compound AgInS2
T. Sawahara, R. Matsumoto, Y. Nakahira, H. Usui, N. Kataoka, R. Saitou, T. Wakita, T. Yokoya, A. Yamashita, Y. Goto, Y. Takano, A. Miura, Y. Mizuguchi
ACS Omega 8, 11288-11292 (2023).

4. Photoelectron Holography Study of La(O,F)BiS2
YaJun Li, ZeXu Sun, Noriyuki Kataoka, Taro Setoguchi, Yusuke Hashimoto, Soichiro Takeuchi, Shunjo Koga, Satoshi Demura, Kanako Noguchi, Hideaki Sakata, Yoshikazu Mizuguchi, Tomohiro Matsushita, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya
J. Phys. Soc. Jpn. 92, 044801 (2023).

5. Controlling of Localization by Elemental-substitution Effect in Layered BiCh2-based Compounds LaO1-xFxBiS2-ySey
K. Hoshi, H. Arima, N. Kataoka, M. Ochi, A. Yamashita, A. De Visser, T. Yokoya, K. Kuroki, Y. Mizuguchi,
J. Phys. Soc. Jpn. 92, 054704 (2023).

6.Molecular dynamics simulation of deposition of amorphous carbon films on sapphire surfaces
Q. Yue, T. Yokoya, Y. Muraoka
Diam Relat Mater. 140, 110515 (2023).

7. Photoelectron holographic evidence for the incorporation site of Se and suppressed atomic displacement of the conducting layer of La(O,F)BiSSe
YaJun Li1, ZeXu Sun, Noriyuki Kataoka, Taro Setoguchi, Yusuke Hashimoto, Soichiro Takeuchi, Shunjo Koga, Kazuhisa Hoshi, Yoshikazu Mizuguchi, Tomohiro Matsushita, Takanori Wakita, Yuji Muraoka , Takayoshi Yokoya
Jpn. J. Appl. Phys. 62, 125001 (2023).

8.Modulation of insulator metal transition of VO₂ films grown on Al2O3 (001) and TiO2 (001) substrates by the crystallization of capping Ge2Sb2Te5 layer
Takuto Ohnuki, Kunio Okimura, Reki Nakamoto, Yuji Muraoka, Joe Sakai, and Masashi Kuwahara
J. Appl. Phys. 134, 245302 (2023).


1. Synthetic Route of Layered Titanium Nitride Chloride TiNCL using Sodium Amide
M. Tanaka, N. Kataoka, R. Matsumoto, K. Inumaru, Y. Takano, T. Yokoya
ACS Omega 7, 6375-6380 (2022).

2.Strain relaxation and spinodal decomposition in composition adjusted TiO2-VO2 films on TiO2(100) substrates
T. Fukuda, Y. Takemoto, T. Wakita, T. Yokoya, Y. Muraoka,
Thin Solid Films 751, 139210 (2022).

3. Incorporation Site and Valence State of Sn Atoms in Sn-Substituted La(O,F)BiS2 Superconductor
YaJun Li, N. Kataoka, T. Setoguchi, Y. Hashimoto, S. Takeuchi, S. Koga, T. Muro, S. Demura, K. Noguchi, H. Sakata, T. Matsushita, I. Kawasaki, S. Fujimori, T. wakita, Y. Muraoka, T. Yokoya
J. Phys. Soc. Jpn. 91, 054302 (2022).

4. Superconductivity in the alpha-Form Layer Structured Metal Nitride Halide
M. Tanaka, N. Kataoka, T. Yokoya
Condensed Matter 7, 33 (2022)

5.Modification of the synthesis of layered titanium chloride nitride
M. Tanaka, N. Kataoka, H. Kobayashi, M. Fujioka, M. Oda, A. Yamamoto, K. Terashima, J. Nishii, H. Tanaka, T. Yokoya
Materials Research Bulletin 153, 111896 (2022).

6.Anomalously large spin-dependent electron correlation in the nearly half-metallic ferromagnet CoS2
H. Fujiwara, K. Terashima, J. Otsuki, N. Takemori, H.O. Jeschke, T. Wakita, Y. Yano, W. Hosoda, N. Kataoka, A. Teruya, M. Kakihana, M. Hedo, T. Nakama, Y. Onuki, K. Yaji, A. Harasawa, K. Kuroda, S. Shin, K. Horiba, KH. Kumigashira, Y. Muraoka, T. Yokoya
Phys. Rev. B 106, 085114 (2022).

7.Photoelectron Diffraction and Holography Studies on Dopant Local Structure
T. Yokoya
J. Phys. Soc. Jpn. 91, 091007 (2022).


1.Soft x-ray irradiation induced metallization of layered TiNCl
Noriyuki Kataoka, Masashi Tanaka, Wataru Hosoda, Takumi Taniguchi, Shin-ichi Fujimori, Takanori Wakita, Yuji Muraoka and Takayoshi Yokoya
J. Phys.: Condens. Matter 33, 035501 (2021).

2.Photoinduced oxygen transport in cobalt double-perovskite crystal EuBaCo2O5.39
M. Hada, O. S. Ohmura, T. Ishikawa, M. Saigo, N. Keio, W. Yajima, T. Suzuku, D. Urushihara, K. Takubo, Y. Masaki, M. Kuwahara, K. Tsuruta, Y. Hayashi, J. Matsuno, T. Yokooya, K. Onda, F. Shimojo, M. Mase, S. Ishihara, T. Asaka, N. Abe
Applied Materials Today 24, 101167 (2021).

3. The Local Structure of the BiS2 Layer in RE(O,F)BiS2 Determined by In-Plane Polarized X-ray AbsorptionMeasurements
G. M. Pugliese, L. Tortora, E. Paris, T. Wakita , K. Terashima, A. Puri, M. Nagao, R. Higashinaka, T. D. Matsuda, Y. Aoki, T. Yokoya, T. Mizokawa and N. L. Saini
Physchem.1, 250–258 (2021).


1.Change in the electronic structure of the bismuth chalcogenide superconductor CsBi_4-xPb_xTe₆ by dissociation of the bismuth dimers
Hiroyuki Okazaki, Kensei Terashima, David Billington, Keiji Iwata, Takanori Wakita, Masashi Tanaka, Yoshihiko Takano, Yuji Muraoka and Takayoshi Yokoya
J. Phys.: Condens. Matter 32, 145501 (2020).

2.Strain effects on spinodal decomposition in TiO₂–VO₂ films on TiO₂(100) substrates
Yuji Muraoka, Fumiya Yoshii, Takahiro Fukuda, Yuji Manabe, Mikiko Yasuno, Yoshito Takemoto, Kensei Terashima, Takanori Wakita and Takayoshi Yokoya
Thin Solid Films 698, 137854 (2020).

3.Formation of Q-carbon by adjusting sp³ content in diamond-like carbon films and laser energy density of pulsed laser annealing
Hiroki Yoshinaka, Seiko Inubushi, Takanori Wakita, Takayoshi Yokoya, Yuji Muraoka
Carbon 167, 504 (2020).

4.Magnetic-field-induced insulator–metal transition in W-doped VO₂ at 500 T
Yasuhiro H. Matsuda, Daisuke Nakamura, Akihiko Ikeda, Shojiro Takeyama, Yuki Suga, Hayato Nakahara and Yuji Muraoka
Nature Communications 11, 3591 (2020).

5.Data-driven exploration for pressure-induced superconductors using diamond anvil cell with boron-doped diamond electrodes and undoped diamond insulating layer
R. Matsumoto, Z.F. Hou, S. Adachi, M. Nagao, S. Yamamoto, P. Song, N. Kataoka, P.B. de Castro, K. Terashima, H. Takeya, H. Tanaka, T. Yokoya, T. Irifune, K. Terakura, Y. Takano
High Pressure Research 40, 22-34 (2020).

6.High-pressure x-ray absorption and diffraction study of the self-doped superconductor EuFBiS2
E. Paris, B. Joseph, C. Marini, K. Terashima, T. Wakita, T. Yokoya, Y. Mizuguchi, T. Mizokawa, N. L. Saini,
Phys. Rev. B 101, 214526 (2020)

7.Skewed electronic band structure induced by electric polarization in ferroelectric BaTiO3,
N. Oshime, J. Kano, E. Ikenaga, S. Yasui, Y. Hamasaki, S. Yasuhara, S. Hinokuma, N. Ikeda, P.E. Janolin, J.M. Kiat, M. Itoh, T. Yokoya, T. Fijii, A. Yasui, H. Osawa,
Scientific Reports 10, 10702 (2020)

8.Theory for High-Angular-Resolution Photoelectron Holograms Considering the inelastic Mean Free Path and the Formation Mechanism of Quasi Kikuchi Band
Tomohiro Matsushita, Takayuki Muro, Takayoshi Yokoya, Kensei Terashima, Yukako Kato, Hirosuke Matsui, Naoyuki Maejima, Yusuke Hashimoto, Fumihiko Matsui,
Physica Status Solidi B-Basic Solid State Physics 257, 2000117 (2020)

9.The Local structure of self-doped BiS2-based layered systems as a function of temperature
G.M. Pugliese, E. Paris, F.G. Capone, F. Stramaglia, T. Wakita, K. Terashima, T. Yokoya, T. Mizokawa, Y. Mizuguchi, N.L. Saini,
Phys. Chem. Chem. Phys. 22, 22217-22225 (2020).

10.Momentum Dependent Band Renormalization and Surface Aging Effect on a Zone Center Electron Pocket in NaSn2As2 Revealed by Angle-Resolved Photoemission Spectroscopy
Y. Akabane, T. Shimaiwa, Y. Goto, Y. Mizuguchi, T. Yokoya, M. Arita, S. Kumar, E.F. Schwier, K. Shimada, N.L. Saini, T. Mizokawa,
J. Phys. Soc. Jpn. 89, 114707 (2020).

11.Change in the work function of VO2 thin film across the metal-insulator transition in VO2/TiO2:Nb(001) heterostructures
Y. Muraoka, Y. Suga, H. Nakahara, T. Yokoya
JPS Conf. Proc. 30, 011071 (2020).


1. Recent Photoemission stdies on BiCh₂-Based Conpunds
Kensei Terashima, Takanori Wakita, and Takayoshi Yokoya
J. Phys. Soc. Jpn. 88, 041006 (2019).

2.Enhanced thermoelectricity by controlled local structure in bismuth-chalcogenides
K. Terashima, Y. Yano, E. Paris, Y. Goto, Y. Mizuguchi, Y. Kamihara, T. Wakita, Y. Muraoka, N. L. Saini, and T. Yokoya
J. Appl. Phys. 125, 145105 (2019).

3.Asymmetric phosphorus incorporation in homoepitaxial P-doped (111) diamond revealed by photoelectron holography
T. Yokoya, K. Terashima, A. Takeda, T. Fukura, H. Fujiwara, T. Muro, T. Kinoshita, H. Kato, S. Yamasaki, T. Oguchi, T. Wakita, Y. Muraoka, and T. Matsuhita
Nano Lett. 19, 5915-5919 (2019).

4.µ-PES studies on TiNCl and quasi-two-dimensional superconductor Na-intercalated TiNCl
Noriyuki Kataoka, Kensei Terashima, Masashi Tanaka, Wataru Hosoda, Takumi Taniguchi, Takanori Wakita, Yuji Muraoka, and Takayoshi Yokoya
J. Phys. Soc. Jpn. 88, 104709 (2019).

5.Inhomogeneous charge distribution in a self-doped EuFBiS₂ superconductor
T. Sugimoto, E. Paris, K Terashima, A. Barinov, A. Giampietri, T. Wakita, T. Yokoya, J. Kajitani, R. Higashinaka, T. D. Matsuda, Y. Aoki, T. Mizokawa and N. L. Saini
Phys. Rev. B 100, 064520 (2019).


1.Direct observation of double valence-band extrema and anisotropic effective masses of the thermoelectric material SnSe
Takanobu Nagayama, Kensei Terashima, Takanori Wakita, Hirokazu Fujiwara, Tetsushi Fukura, Yuko Yano, Kanta Ono, Hiroshi Kumigashira, Osamu Ogiso, Aichi Yamashita, Yoshihiko Takano, Hitoshi Mori, Hidetomo Usui, Masayuki Ochi, Kazuhiko Kuroki, Yuji Muraoka, Takayoshi Yokoya
Japanese Journal of Applied Physics 57, 010301 (2018).

2.Multilayer formation via spinodal decomposition in TiO₂-VO₂ epitaxial films on sapphire substrates
Yuka Matsuura, Fumiya Yoshii, Tsubasa Otsuka, Kenji Kadowaki, Masataka Ijiri, Yoshito Takemoto, Kensei Terashima, Takanori Wakita, Takayoshi Yokoya, Yuji Muraoka
Journal of the European Ceramic Society 38, 5043-5050 (2018).

3.Determination of the local structure of Sr_2−xM_xIrO₄ (M = K, La) as a function of doping and temperature
K. Terashima, E. Paris, E. Salas-Colera, L. Simonelli, B. Joseph, T. Wakita, K. Horigane, M. Fujii, K. Kobayashi, R. Horie, J. Akimitsu, Y. Muraoka, T. Yokoya, and N. L. Saini
Physical Chemistry Chemical Physics 20, 23783-23788(2018).

4.Temperature-dependent local structure and superconductivity of BaPd₂As₂ and SrPd₂As₂
K. Terashima, E. Paris, L. Simonelli, E. Salas-Colera, A. Puri, T. Wakita, Y. Yamada, S. Nakano, H. Idei, K. Kudo, M. Nohara, Y. Muraoka, T. Mizokawa, T. Yokoya, and N. L. Saini
Physical Review B 98, 094525(2018).

5.Origins of Thermal Spin Depolarization in Half-Metallic Ferromagnet CrO₂
Hirokazu Fujiwara, Kensei Terashima, Masanori Sunagawa, Yuko Yano, Takanobu Nagayama, Tetsushi Fukura, Fumiya Yoshii, Yuka Matsuura, Makoto Ogata, Takanori Wakita, Koichiro Yaji, Ayumi Harasawa, Kenta Kuroda, Shik Shin, Koji Horiba, Hiroshi Kumigashira, Yuji Muraoka, and Takayoshi Yokoya
Phycal Review Letters 121, 257201(2018).

6.Fermi surface topology in a metallic phase of VO₂ thin films grown on TiO₂(001) substrates
Yuji Muraoka, Hiroki Nagao, Yuichiro Yao, Takanori Wakita, Kensei Terashima, Takayoshi Yokoya, Hiroshi Kumigashira and Masaharu Oshima
Sci. Rep. 8, 17906 (2018).


1.Ce 4f electronic states of CeO_1−xF_xBiS₂ studied by soft x-ray photoemission spectroscopy
Takanori Wakita, Kensei Terashima, Takahiro Hamada, Hirokazu Fujiwara, Makoto Minohara, Masaki Kobayashi, Koji Horiba, Hiroshi Kumigashira, Galif Kutluk, Masanori Nagao, Satoshi Watauchi, Isao Tanaka, Satoshi Demura, Hiroyuki Okazaki, Yoshihiko Takano, Yoshikazu Mizuguchi, Osuke Miura, Kozo Okada, Yuji Muraoka, and Takayoshi Yokoya
Phys. Rev. B 95, 085109 (2017).

2.Electronic structure of K-doped picene film on HOPG
T. Wakita, H. Okazaki, T. Jabuchi, H. Hamada, Y. Muraoka, T. Yokoya
Journal of Physics-Condensed Matter 29, 064001 (2017).

3.Evolution of Eu valence and superconductivity in layered Eu_0.5La_0.5FBiS_2-xSe_x system
Y. Mizuguchi, E. Paris, T. Wakita, G. Jinno, A. Puri, K. Terashima, B. Joseph, O. Miura, T. Yokoya, N.L. Saini
Physical Review B 95, 064515 (2017).

4.Evolution of the remnant Fermi-surface state in the lightly doped correlated spin-orbit insulator Sr_2-xLa_xIrO₄
K. Terashima, M. Sunagawa, H. Fujiwara, T. Fukura, M. Fujii, K. Okada, K. Horigane, K. Kobayashi, R. Horie, J. Akimitsu, E. Golias, D. Marchenko, A. Varykhalov, N. L. Saini, T. Wakita, Y. Muraoka, T. Yokoya
Physical Review B 96, 041106 (2017).

5.Effect of aliovalent dopants on the kinetics of spinodal decomposition in rutile-type TiO₂-VO₂
Makoto Ogata, Kenji Kadowaki, Masataka Ijiri, Masataka, Yoshito Takemoto, Kensei Terashima, Takanori Wakita, Takayoshi Yokoya, Yuji Muraoka
Journal of the European Ceramic Society 37, 3177-3183 (2017).

6.The electronic structure of Ag_1-xSn_1+xSe₂ (x=0.0, 0.1, 0.2, 0.25 and 1.0)
T. Wakita, E. Paris, K. Kobayashi, K. Terashima, M.Y. Hacisalihoglu, T. Ueno, F. Bondino, E. Magnano, I. Pis, L. Olivi, J. Akimitsu, Y. Muraoka, T. Yokoya, N.L. Saini
Physical Chemistry Chemical Physics 19, 26672-26678 (2017).

7.Observation of intrinsic half-metallic behavior of CrO₂ (100) epitaxial films by bulk-sensitive spin-resolved PES
H. Fujiwara, M. Sunagawa, K. Terashima, T. Kittaka, T. Wakita, Y. Muraoka, and T. Yokoya
J. Electron Spectrosc. Relat. Phenom. 220, 46 (2017).

8.Electronic structure of self-doped layered Eu₃F₄Bi₂S₄ material revealed by x-ray absorption spectroscopy and photoelectron spectromicroscopy
E. Paris, T. Sugimoto, T. Wakita, A. Barinov, K. Terashima, V. Kandyba, O. Proux, J. Kajitani, R. Higashinaka, T. D. Matsuda, Y. Aoki, T. Yokoya, T. Mizokawa, and N. L. Saini
Phys. Rev. B 95, 035152 (2017).

9.Unusual upper critical field behavior in Nb-doped bismuth selenides
K. Kobayashi, T. Ueno, H. Fujiwara, T. Yokoya and J. Akimitsu
Phys. Rev. B 95, 180503 (2017).

10.Inhomogeneous electronic states associated with charge-orbital order/disorder in BaV₁₀O₁₅ probed by photoemission spectromicroscopy
T. Yoshino, K. Wakita, E. Paris, A. Barinov, T. Kajita, T. Katsufuji, V. Kandyba, T. Sugimoto, N. L. Saini and T. Mizokawa
Phys. Rev. B 96, 115161 (2017).


1. Preparation of TaO₂ thin films using NbO₂ template layers by a pulsed laser deposition technique
Y. Muraoka, Y. Fujimoto, M. Kameoka, Y. Matsuura, M. Sunagawa, K. Terashima, T. Wakita, T. Yokoya
Thin Solid Films 599, 125 (2016).

2. Comparaive ARPES studied of LaO_xF_1-xBiS₂（x=0.23 and 0.46）
K Terashima, T Wakita, M Sunagawa, H Fujiwara, T Nagayama, K Ono, H Kumigashira, M Nagao, S Watauchi, I Tanaka, H Okazaki, Y Takano, Y Mizuguchi, H Usui, K Kuroki, Y Muraoka and T Yokoya
J. Phys: Conference Series 683, 012002 (2016).

3. Bulk sensitive angle-resolved photoelectron spectroscopy on Nd(O,F)BiS₂
K Terashima, J Sonoyama, M Sunagawa, H Fujiwara, T Nagayama, T Muro, M Nagao, S Watauchi, I Tanaka, H Okazaki, Y Takano, Y Mizuguchi, H Usui, K Suzuki, K Kuroki, T Wakita, Y Muraoka and T Yokoya
J. Phys: Conference Series 683, 012003 (2016)

4. Observation of a Hidden Hole-Like Band Approaching the Fermi Level in K-Doped Iron Selenide Superconductor
Masanori Sunagawa, Kensei Terashima, Takahiro Hamada, Hirokazu Fujiwara, Tetsushi Fukura, Aya Takeda, Masashi Tanaka, Hiroyuki Takeya, Yoshihiko Takano, Masashi Arita, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi, Katsuhiro Suzuki, Hidetomo Usui, Kazuhiko Kuroki, Takanori Wakita, Yuji Muraoka, Takayoshi Yokoya
J. Phys. Soc. Jpn. 85, 073704 (2016).

5.Determination of the local structure of CsBi_4－xPb_xTe₆ (x = 0, 0.5) by X-ray absorption spectroscopy
Takanori Wakita, Eugenio Paris, Takashi Mizokawa, Muammer Yasin Hacisalihoğlu, Kensei Terashima, Hiroyuki Okazaki, Olivier Proux, Isabelle Kieffer, Eric Lahera, William Del Net, Luca Olivi, Yoshihiko Takano, Yuji Muraoka, Takayoshi Yokoya and Naurang L. Saini
Takanori Wakita et al., Phys. Chem. Chem. Phys., 18, 25136 (2016).

6. Emergence of superconductivity in (NH₃)_yM_xMoSe₂ (M: Li, Na and K)
X Miao, S Nishiyama, Lu Zheng, H Goto, R Eguchi, H Ota, T Kambe, K Terashima, T Yokoya H T L Nguyen, T Kagayama, N Hirao, Y Ohishi, H Ishii, Y F Liao and Y Kubozono
Sci. Rep. 6, 29292 (2016).


1. Signature of high Tc above 25 K in high quality superconducting diamond
Hiroyuki Okazaki, Takanori Wakita, Takayuki Muro, Tetsuya Nakamura, Yuji Muraoka, Takayoshi Yokoya, Shin-ichiro Kurihara, Hiroshi Kawarada, Tamio Oguchi, Yoshihiko Takano
Appl. Phys. Lett. 106, 052601 (2015).

2. Comparative ARPES Study on Iron-Platinum-Arsenide Superconductor Ca₁₀(Pt₄As₈)(Fe_2-xPt_xAs₂)₅ (x = 0.25 and 0.42)
Masanori Sunagawa, Rikiya Yoshida, Toshihiko Ishiga, Koji Tsubota, Taihei Jabuchi, Junki Sonoyama, Satomi Kakiya, Daisuke Mitsuoka, Kazutaka Kudo, Minoru Nohara, Kanta Ono, Hiroshi Kumigashira, Tamio Oguchi, Takanori Wakita, Yuji Muraoka, and Takayoshi Yokoya
J. Phys. Soc. Jpn. 84, 055001 (2015).

3. Intrinsic spin polarized electronic structure of CrO₂ epitaxial film revealedby bulk-sensitive spin-resolved photoemission spectroscopy
Hirokazu Fujiwara, Masanori Sunagawa, Kensei Terashima, Tomoko Kittaka, Takanori Wakita, Yuji Muraoka, and Takayoshi Yokoya
Appl. Phys. Lett. 106, 202404 (2015).


1. Soft x-ray photoemission study of new BiS₂-layered superconductor LaO_1-xF_xBiS₂
S. Nagira, J. Sonoyama, T. Wakita, M.Sunagawa,Y. Izumi, T. Muro, H. Kumigashira, M.Oshima, K. Deguchi, H. Okazaki, Y. Takano, O. Miura,Y. Mizuguchi, K. Suzuki, H. Usui, K. Kuroki, K. Okada, Y. Muraoka, and T. Yokoya
J. Phys. Soc. Jpn. 83, 033703 (2014).

2. Persistent insulator to metal transition of a VO₂ thin film by soft x-ray irradiation
Y. Muraoka, H. Nagao, S. Katayama, T. Wakita, M. Hirai, T. Yokoya, H. Kumigashira, and M. Oshima
Jpn. J. Appl. Phys. 53, 05FB09 (2014).

3. Electronic Structures of CeM₂Al₁₀ (M = Fe, Ru, and Os) Studied by Soft X-ray Resonant and High-Resolution Photoemission Spectroscopies
Toshihiko Ishiga, Takanori Wakita, Rikiya Yoshida, Hiroyuki Okazaki, Koji Tsubota, Masanori Sunagawa, Kanta Uenaka, Kozo Okada, Hiroshi Kumigashira, Masaharu Oshima, Keisuke Yutani, Yuji Muro, Toshiro Takabatake, Yuji Muraoka, and Takayoshi Yokoya
J. Phys. Soc. Jpn. 83, 094717 (2014).

4. Characteristic two-dimensional Fermi surface topology of high-T_c iron-based superconductors
Masanori Sunagawa, Toshihiko Ishiga, Koji Tsubota, Taihei Jabuchi, Junki Sonoyama, Keita Iba, Kazutaka Kudo, Minoru Nohara, Kanta Ono, Hiroshi Kumigashira, Tomohiro Matsushita, Masashi Arita, Kenya Shimada, Hirofumi Namatame, Masaki Taniguchi, Takanori Wakita, Yuji Muraoka & Takayoshi Yokoya
Scientific Reports 4, 4381 (2014).

5. Proximity to Fermi-surface topological change in superconducting LaO_0.54F_0.46BiS₂
Kensei Terashima, Junki Sonoyama, Takanori Wakita, Masanori Sunagawa, Kanta Ono, Hiroshi Kumigashira, Takayuki Muro, Masanori Nagao, Satoshi Watauchi, Isao Tanaka, Hiroyuki Okazaki, Yoshihiko Takano, Osuke Miura, Yoshikazu Mizuguchi, Hidetomo Usui, Katsuhiro Suzuki, Kazuhiko Kuroki, Yuji Muraoka, and Takayoshi Yokoya
Phys. Rev. B 90, 220512 (2014).

6. Ultrafast photoinduced transition of an insulating VO2 thin film into a nonrutile metallic state
Rikiya Yoshida, Takashi Yamamoto, Yukiaki Ishida, Hiroki Nagao, Tsubasa Otsuka, Kuninari Saeki, Yuji Muraoka, Ritsuko Eguchi, Kyoko Ishizaka, Takayuki Kiss, Shuntaro Watanabe, Teruto Kanai, Jiro Itatani, and Shik Shin
Phys. Rev. B 89, 205114 (2014).


1. Collapsed tetragonal phase transition of Ca(Fe_1-xRh_x)₂As₂ studied with photoemission spectroscopy
Koji Tsubota, Takanori Wakita, Hiroki Nagao, Chiaki Hiramatsu, Toshihiko Ishiga, Masanori Sunagawa, Kanta Ono, Hiroshi Kumigashira, Masataka Danura, Kazutaka Kudo, Minoru Nohara, Yuji Muraoka, Takayoshi Yokoya
J. Phys. Soc. Jpn. 82, 073705 (2013).

2. Spinodal decomposition in the TiO₂-VO₂ system
Z. Hiroi, H. Hayamizu, T. Yoshida, Y. Muraoka, Y. Okamoto, J. Yamaura, and Y. Ueda
Chem. Mater. 25, 2202-2210 (2013).

3. Translational symmetry breaking and gapping of heavy-quasiparticle pocket in URu₂Si₂
R. Yoshida, K. Tubota, T. Ishiga, M. Sunagawa, J. Sonoyama, D. Aoki, J. Flouquet, T. Wakita, Y. Muraoka, and T. Yokoya
Sci. Rep. 3, 2750/1-6 (2013).

4. Evidence for metallic states in potassium-intercalated picene film on graphite
H. Okazaki, T. Jabuchi, T. Wakita, T. Kato, Y. Muraoka,and T. Yokoya
Phys. Rev. B 88, 245414/1-6 (2013).


1. Effectiveness of a hot-filament chemical vapor deposition method for preparation of a boron-doped superconducting diamond film with higher superconducting transition temperature
T. Doi, T. Fukaishi, C. Hiramatsu, T. Wakita, M. Hirai, Y. Muraoka, T. Yokoya, Y. Kato, Y. Lzumi, T. Muro, Y. Tamenori
Diamond and Related Materials 25, 5-7 (2012).

2. Observation of two fine structures related to the hidden order in the spectral functions of URu₂Si₂
R. Yoshida, M. Fukui, Y. Haga, E. Yamamoto, Y. Onuki, M. Okawa, W. Malaeb, S. Shin, Y. Muraoka, Yuji, T. Yokoya
Phys. Rev. B 85, 241102 (2012).

3. Comparative photoemission studies on the superconducting gap of the filled skutterudite superconductors LaPt₄Ge₁₂ and PrPt₄Ge₁₂
Y. Nakamura, H. Okazaki, R. Yoshida, T. Wakita, H. Takeya, K. Hirata, M. Hirai, Y. Muraoka, T. Yokoya
Phys. Rev. B 86, 014521 (2012).

4. Te concentration dependent photoemission and inverse-photoemission study of FeSe1-xTex
T. Yokoya, R. Yoshida, Y. Utsumi, K. Tsubota, H. Okazaki, T. Wakita, Y. Mizuguchi, Y. Takano, T. Muro, Y. Kato, H. Kumigashira, M. Oshima, H. Harima, Y. Aiura, H. Sato, A. Ino, H. Namatame, M. Taniguchi, M. Hirai, Y. Muraoka
Science and Technology of Advanced Materials 13, 054403 (2012).


1. Spectroscopic evidence of the formation of (V,Ti)O2 solid solution in VO2 thinner films grown on TiO2(001) substrates
Y. Muraoka, K. Saeki, R. Eguchi, T. Wakita, M. Hirai, T. Yokoya, and S. Shin
J. Appl. Phys. 109, No. 4, 043702/1-6 (2011).

2. Multiple phosphorus chemical sites in heavily phosphorus-doped diamond
H. Okazaki, R. Yoshida, T. Muro, T. Nakamura, T. Wakita, Y. Muraoka, M. Hirai, H. Kato, S. Yamasaki, Y. Takano, S. Ishii, T. Oguchi, T. Yokoya
Appl. Phys. Lett. 98, 082107 (2011).

3. Synthesis and physical properties of the hollandite-type titanium oxide KxTi8O16C
Y. Muraoka, K. Noami, T. Wakita, M. Hirai, T. Yokoya, Y. Kato, T. Muro, and Y. Tamenori
Phys.Status Solidi C 8, Iss. 2, 555-557 (2011).

4. Photoemission study of electronic structure evolution across the metal-insulator transition of heavily B-doped diamond
H. Okazaki, T. Arakane, K. Sugawara, T. Sato, T. Takahashi, T. Wakita, M. Hirai, Y. Muraoka, Y. Takano, S. Ishii, S. Iruyama, H. Kawarada, and T. Yokoya
Journal of Physics and Chemistry of Solids 72, 582-584 (2011).

5. Ultrahigh-resolution laser photoemission study of URu2Si2 across the hidden-order transition
R. Yoshida, Y. Nakamura, M. Fukui, Y. Haga, E. Yamamoto, Y. Onuki, M. Okawa, S. Shin, M. Hirai, Y. Muraoka, and T. Yokoya
Journal of Physics and Chemistry of Solids 72, 580-581 (2011).


1. Kondo scaling of the pseudogap in CeOs4Sb12 and CeFe4P12
P.A. Rayjada, A. Chainani, M. Matsunami, M. Taguchi, S. Tsuda, T. Yokoya, S. Shin, H. Sugawara and H. Sato
J. Phys-Cond. Mat. 22, 095502 (2010).

2. Room temperature ferromagnetic behavior in the hollandite-typ titanium oxide
K. Noami, Y. Muraoka, T. Wakita, M. Hirai, Y. Kato, T. Muro, Y. Tamenori and T. Yokoya
Journal of Applied Physics 107, 073910 (2010)

3. Angle-resolved photoemission observation of the superconducting-gap minimum and its relation to the nesting vector in the phonon-mediated superconductor YNi2B2C
T. Baba, T. Yokoya, S. Tsuda, T. Watanabe, M. Nohara, H. Takagi, T. Oguchi, and S. Shin
Phys. Rev. B 81, 180509 (2010).

4. Lateral Inhomogeneity in the Electronic Structure of a Conjugated Poly(3-hexylthiophene) Thin Film
K. Kanai, T. Miyazaki, T. Wakita, K. Akaike, T. Yokoya, Y. Ouchi, and K. Seki
Advanced Functional Materials 20, 2046-2052 (2010).

5. Bulk and surface physical properties of a CrO2 thin film prepared from a Cr8O21 precursor
K. Iwai, Y. Muraoka, T. Wakita, M. Hirai, T. Yokoya, Y. Kato, T. Muro, and Y. Tamenori
Journal of Applied Physics 108, 043916 (2010).

6. Angle-resolved photoemission spectroscopy for VO2 thin films grown on TiO2(001) substrates
Y. Muraoka, K. Saeki, Y. Yao, T. Wakita, M. Hirai, T. Yokoya, R. Eguchi, and S. Shin
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 181, SI 249-251 (2010).

7. Signature of hidden order and evidence for periodicity modulation in URu2Si2
R. Yoshida, Y. Nakamura, M. Fukui, Y. Haga, E. Yamamoto, Y. Onuki, M. Okawa, S. Shin, M. Hirai, Y. Muraoka, and T. Yokoya
Phys. Rev. B 82, 205108 (2010).

8. Electronic structure of pristine and K-doped picene: Nonrigid band change and its implication for electron-intramolecular-vivration interaction
H. Okazaki, T. Wakita, T. Muro, Y. Kaji, X. Lee, H. Mitamura, N. Kawasaki, Y. Kubozono, Y. Yamanari, T. kambe, T. Kato, M. Hirai, Y. Muraoka, and T. Yokoya
Phys. Rev. B 82, 195114 (2010).

9. Angle-resolved photoemission study of Si electronic structure: Boron concentration dependence
T. Wakita, H. Okazaki, Y. Takano, M. Hirai, Y. Muraoka, T. Yokoya
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 470, S641-S643 (2010).

10.Photoemission study of Ca-intercalated graphite superconductor CaC6
H. Okazaki, R. Yoshida, K. Iwai, K. Noami, T. Muro, T. Nakamura, T. Wakita, Y. Muraoka, M. Hirai, F. Tomioka, Y. Takano, A. Takenaka, M. Toyoda, T. Oguchi, and T. Yokoya
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 470, S637-S638 (2010).

11.Electronic Structure of the Novel Filled Skutterudite PrPt4Ge12 Superconductor
Y. Nakamura, H. Okazaki, R. Yoshida, T. Wakita, M. Hirai, Y. Muraoka, H. Takeya, K. Hirata, H. Kumigashira, M. Oshima, and T. Yokoya
J. Phys. Soc. Jpn. 79, 124701/1-4 (2010).

12.Analysis on photoemission spectrum of superconducting FeSe
R. Yoshida, T. Wakita, H. Okazaki, Y. Mizuguchi, S. Tsuda, Y. Takano, H. Takeya, K. Hirata, T. Muro, M. Okawa, K. Ishizaka, S. Shin, H. Harima, M. Hirai, Y. Muraoka, and T. Yokoya
Physica C-Superconductivity and its Applications 470, S389-S390 (2010).


1. Soft X-Ray Core-Level Photoemission Study of Boron Sites in Heavily Boron-Doped Diamond Films
H. Okazaki, R. Yoshida, T. Muro, T. Wakita, M. Hirai, Y. Muraoka, Y. Takano, S. Iriyama, H. Kawarada, T. Oguchi and T. Yokoya
J. Phys. Soc. Jpn. 78, 034703/1-4 (2009).

2. Superconducting Gap and Valence Band of Mg10Ir19B16 Studied by Laser and Synchrotron Photoemission Spectroscopy
R. Yoshida, H. Okazaki, K. Iwai, K. Noami, T. Muro, M. Okawa, K. Ishizaka, S. Shin, Z. Li, J.L. Luo, G.-q. Zheng, T. Oguchi, M. Hirai, Y. Muraoka, and T. Yokoya
J. Phys. Soc. Jpn. 78, 034705/1-4 (2009).

3. The electronic structure of Ca-intercalated superconducting graphite CaC6
H. Okazaki, R. Yoshida, K. Iwaia, K. Noami, T. Muro, T. Nakamura, T. Wakita, Y. Muraoka, M. Hirai, F. Tomioka, Y. Takano, A. Takenaka, M. Toyoda, T. Oguchi, T. Yokoya
Physica C 469, 1041-1044 (2009).

4. Electronic Structure of Superconducting FeSe Studied by High-Resolution Photoemission Spectroscopy
R. Yoshida, T. Wakita, H. Okazaki, Y. Mizuguchi, S. Tsuda, Y. Takano, H.Takeya, K. Hirata, T. Muro, M. Okawa, K. Ishizaka, S. Shin, H. Harima, M. Hirai, Y. Muraoka, and T. Yokoya
J. Phys. Soc. Jpn. 78, 034708/1-4 (2009).

5. Effect of UV light irradiation in SnO2 thin film
N. Takubo, Y. Muraoka and Z. Hiroi
J. Phys. : Conference Series 148, 012025/1-3 (2009).

6. Conductivity switching by ultraviolet light in tin dioxide thin films
N. Takubo, Y. Muraoka and Z. Hiroi
Applied Physics Express 2, 045501/1-3 (2009).

7. Photoinduced conductivity in tin dioxide thin films
Y. Muraoka, N. Takubo, and Z. Hiroi
J. Appl. Phys. 105, 103702/1-7 (2009).

8. Spectroscopic evidence of the existence of substantial Ca 3d derived states at the Fermi level in the Ca-intercalated graphite superconductor CaC6
H. Okazaki, R. Yoshida, K. Iwai, K. Noami, T. Muro, T. Nakamura, T. Wakita, Y. Muraoka, M. Hirai, F. Tomioka, Y. Takano, A. Takenaka, M. Toyoda, T. Oguchi, and T. Yokoya
Phys. Rev. B 80, 035420/1-5 (2009).

9. Band dispersion near the Fermi level forVO2 thin films grown on TiO2(001) substrates
K. Saeki, T. Wakita, Y. Muraoka, M. Hirai, T. Yokoya, R. Eguchi, and S. Shin
Phys. Rev. B 80, 125406/1-5 (2009).



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