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films; Case of pre-reactionSakaguchi, Yoshifumi*; Hanashima, Takayasu*; Aoki, Hiroyuki; Asaoka, Hidehito; Simon, A.-A. A.*; Mitkova, M.*
Physica Status Solidi (A), 215(12), p.1800049_1 - 1800049_12, 2018/06
Times Cited Count：7 Percentile：31.10(Materials Science, Multidisciplinary)Shimaoka, Takehiro*; Kaneko, Junichi*; Sato, Yuki; Tsubota, Masakatsu*; Shimmyo, Hiroaki*; Chayahara, Akiyoshi*; Watanabe, Hideyuki*; Umezawa, Hitoshi*; Mokuno, Yoshiaki*
Physica Status Solidi (A), 213(10), p.2629 - 2633, 2016/10
Times Cited Count：16 Percentile：54.09(Materials Science, Multidisciplinary)Yamaguchi, Hisato*; Ogawa, Shuichi*; Watanabe, Daiki*; Hozumi, Hideaki*; Gao, Y.*; Eda, Goki*; Mattevi, C.*; Fujita, Takeshi*; Yoshigoe, Akitaka; Ishizuka, Shinji*; et al.
Physica Status Solidi (A), 213(9), p.2380 - 2386, 2016/09
Times Cited Count：14 Percentile：51.80(Materials Science, Multidisciplinary)We report valence-band electronic structure evolution of graphene oxide (GO) upon its thermal reduction. The degree of oxygen functionalization was controlled by annealing temperature, and an electronic structure evolution was monitored using real-time ultraviolet photoelectron spectroscopy. We observed a drastic increase in the density of states around the Fermi level upon thermal annealing at 
600
C. The result indicates that while there is an apparent bandgap for GO prior to a thermal reduction, the gap closes after an annealing around that temperature. This trend of bandgap closure was correlated with the electrical, chemical, and structural properties to determine a set of GO material properties that is optimal for optoelectronics. The results revealed that annealing at a temperature of 500C leads to the desired properties, demonstrated by a uniform and an order of magnitude enhanced photocurrent map of an individual GO sheet compared to an as-synthesized counterpart.
Sakaguchi, Yoshifumi*; Asaoka, Hidehito; Uozumi, Yuki; Kawakita, Yukinobu; Ito, Takayoshi*; Kubota, Masato; Yamazaki, Dai; Soyama, Kazuhiko; Sheoran, G.*; Mitkova, M.*
Physica Status Solidi (A), 213(7), p.1894 - 1903, 2016/07
Times Cited Count：7 Percentile：31.78(Materials Science, Multidisciplinary)no abstracts in English
Onoda, Shinobu; Haruyama, Moriyoshi; Teraji, Tokuyuki*; Isoya, Junichi*; Kada, Wataru*; Hanaizumi, Osamu*; Oshima, Takeshi
Physica Status Solidi (A), 212(11), p.2641 - 2644, 2015/11
Times Cited Count：12 Percentile：45.41(Materials Science, Multidisciplinary)
MRuO
(M=Mg, Co, Ni, and Zn)Yoshii, Kenji; Ikeda, Naoshi*; Mizumaki, Masaichiro*
Physica Status Solidi (A), 203(11), p.2812 - 2817, 2006/09
Times Cited Count：37 Percentile：78.22(Materials Science, Multidisciplinary)no abstracts in English
Kuroda, Shinji*; Marcet, S.*; Bellet-Amalric, E.*; Cibert, J.*; Mariette, H.*; Yamamoto, Shunya; Sakai, Takuro; Oshima, Takeshi; Ito, Hisayoshi
Physica Status Solidi (A), 203(7), p.1724 - 1728, 2006/05
Times Cited Count：6 Percentile：30.30(Materials Science, Multidisciplinary)no abstracts in English
thin filmsLee, H.-S.*; Okada, Hiroshi*; Wakahara, Akihiro*; Yoshida, Akira*; Oshima, Takeshi; Ito, Hisayoshi; Kawakita, Shiro*; Imaizumi, Mitsuru*; Matsuda, Sumio*
Physica Status Solidi (A), 199(3), p.471 - 474, 2003/10
Times Cited Count：3 Percentile：20.79(Materials Science, Multidisciplinary)no abstracts in English
V
)SbO
with one-dimensional magnetic arraysAbe, Hideki*; Yoshii, Kenji; Kitazawa, Hideaki*
Physica Status Solidi (A), 189(2), p.429 - 432, 2002/02
Times Cited Count：1 Percentile：7.78(Materials Science, Multidisciplinary)no abstracts in English
Hishinuma, Akimichi; Takaki, Seiichi*; Abiko, Kenji*
Physica Status Solidi (A), 189(1), p.69 - 78, 2002/01
Times Cited Count：13 Percentile：55.67(Materials Science, Multidisciplinary)no abstracts in English
Ito, Hisayoshi; Kawasuso, Atsuo; Oshima, Takeshi; Yoshikawa, Masahito; Nashiyama, Isamu; Tanigawa, Shoichiro*; ; Okumura, Hajime*; Yoshida, Sadafumi*
Physica Status Solidi (A), 162, p.173 - 198, 1997/00
Times Cited Count：132 Percentile：97.83(Materials Science, Multidisciplinary)no abstracts in English
Wakai, Eiichi; Hishinuma, Akimichi; Sawai, Tomotsugu; Kato, Yasushi*; Isozaki, Seiichi*; Takaki, Seiichi*; Abiko, Kenji*
Physica Status Solidi (A), 160(2), p.441 - 448, 1997/00
Times Cited Count：15 Percentile：66.71(Materials Science, Multidisciplinary)no abstracts in English
; Takamura, Saburo;
Physica Status Solidi (A), 108, p.219 - 224, 1988/09
Times Cited Count：1 Percentile：12.16(Materials Science, Multidisciplinary)no abstracts in English
