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1,124 results on '"Miyano K"'

1. Size of Orbital Ordering Domain Controlled by the Itinerancy of the 3d Electrons in a Manganite Thin Film

Author

Wakabayashi, Y., Sagayama, H., Arima, T., Nakamura, M., Ogimoto, Y., Kubo, Y., Miyano, K., and Sawa, H.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science
Abstract

An electronic effect on a macroscopic domain structure is found in a strongly correlated half-doped manganite film Nd$_{0.5}$Sr$_{0.5}$MnO3 grown on a (011) surface of SrTiO3. The sample has a high-temperature (HT) phase free from distortion above 180K and two low-temperature (LT) phases with a large shear-mode strain and a concomitant twin structure. One LT phase has a large itinerancy (A-type), and the other has a small itinerancy (CE-type), while the lattice distortions they cause are almost equal. Our x ray diffraction measurement shows that the domain size of the LT phase made by the HT-CE transition is much smaller than that by the HT-A transition, indicating that the difference in domain size is caused by the electronic states of the LT phases., Comment: 9 pages, 4 figures

Published
2009
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2. Nonlinear Optical Response of SrTiO3/LaAlO3 Superlattices

Author

Ogawa, N., Miyano, K., Hosoda, M., Higuchi, T., Bell, C., Hikita, Y., and Hwang, H. Y.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

The electronic symmetry of the SrTiO3/LaAlO3 interface was investigated by optical second harmonic generation, using superlattices with varying periodicity to study the evolution of the electronic reconstruction while avoiding substrate contributions. The superlattices show large perpendicular optical nonlinearity, which abruptly increases when the sublattice thickness goes above 3 unit cells, revealing substantial effects of the polar-nonpolar interface. The nonlinear 'active' area is primarily in SrTiO3, develops with increasing thickness, and extends up to 8 unit cells from the interface., Comment: 4 pages, 3 figures

Published
2009

3. Orbital Ordering Structures in (Nd,Pr)0.5Sr0.5MnO3 Manganite Thin Films on Perovskite (011) Substrates

Author

Wakabayashi, Y., Bizen, D., Kubo, Y., Nakao, H., Murakami, Y., Nakamura, M., Ogimoto, Y., Miyano, K., and Sawa, H.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science
Abstract

Structural study of orbital-ordered manganite thin films has been conducted using synchrotron radiation, and a ground state electronic phase diagram is made. The lattice parameters of four manganite thin films, Nd0.5Sr0.5MnO3 (NSMO) or Pr0.5Sr0.5MnO3 (PSMO) on (011) surfaces of SrTiO3 (STO) or [(LaAlO3){0.3}(SrAl0.5Ta0.5O3){0.7}] (LSAT), were measured as a function of temperature. The result shows, as expected based on previous knowledge of bulk materials, that the films' resistivity is closely related to their structures. Observed superlattice reflections indicate that NSMO thin films have an antiferro-orbital-ordered phase as their low-temperature phase while PSMO film on LSAT has a ferro-orbital-ordered phase, and that on STO has no orbital-ordered phase. A metallic ground state was observed only in films having a narrow region of A-site ion radius, while larger ions favor ferro-orbital-ordered structure and smaller ions stabilize antiferro-orbital-ordered structure. The key to the orbital-ordering transition in (011) film is found to be the in-plane displacement along [0-1 1] direction., Comment: 19pages, 11 figures

Published
2007
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4. Observation of photoinduced phase transition in phase-separated Pr$_{0.55}$(Ca$_{1-y}$Sr$_{y}$)$_{0.45}$MnO$_3$ thin films via x-ray photoemission spectroscopy

Author

Takubo, K., Son, J. -Y., Mizokawa, T., Takubo, N., and Miyano, K.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

Perovskite manganite thin films, $Pr_{0.55}(Ca_{1-y}Sr_y)_{0.45}MnO_3$, have been studied using x-ray photoemission spectroscopy in order to clarify the consequence of the competition between ferromagnetic metal (FM) and charge-orbital ordered insulator (COOI). Films with $y$ = 0.40 undergo uniform paramagnetic insulator to FM transition. On the other hand, in films with $y$ = 0.25, the composition near the bicritical point, phase separation of COOI and FM domains is indicated by the spectral change below 125 K. Interestingly, between 50 K and 70 K, the visible laser illumination transfers the COOI-like spectra obtained in cooling process to the FM-like spectra obtained in warming process. This indicates that the photoinduced IMT is governed by the increase of the FM volume fraction and is deeply related to the phase separation between the FM and COOI states., Comment: 10 pages, 4 figures

Published
2007
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5. Novel Orbital Ordering induced by Anisotropic Stress in a Manganite Thin Film

Author

Wakabayashi, Y., Bizen, D., Nakao, H., Murakami, Y., Nakamura, M., Ogimoto, Y., Izumi, M., Miyano, K., and Sawa, H.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We performed resonant and nonresonant x-ray diffraction studies of a Nd0.5Sr0.5MnO3 thin film that exhibits a clear first-order transition. Lattice parameters vary drastically at the metal-insulator transition at 170K (=T_MI), and superlattice reflections appear below 140K (=T_CO). The electronic structure between T_MI and T_CO is identified as A-type antiferromagnetic with the d_{x2-y2} ferroorbital ordering. Below T_CO, a new type of antiferroorbital ordering emerges. The accommodation of the large lattice distortion at the first-order phase transition and the appearance of the novel orbital ordering are brought about by the anisotropy in the substrate, a new parameter for the phase control., Comment: 4pages, 4figures

Published
2005
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6. Search for Dark Matter WIMPs using Upward Through-going Muons in Super-Kamiokande

Author

Collaboration, Super-Kamiokande, Desai, S., Ashie, Y., Fukuda, S., Fukuda, Y., Ishihara, K., Itow, Y., Koshio, Y., Minamino, A., Miura, M., Moriyama, S., Nakahata, M., Namba, T., Nambu, R., Obayashi, Y., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Yamada, S., Ishitsuka, M., Kajita, T., Kaneyuki, K., Nakayama, S., Okada, A., Ooyabu, T., Saji, C., Earl, M., Kearns, E., Stone, J. L., Sulak, L. R., Walter, C. W., Wang, W., Goldhaber, M., Barszczak, T., Casper, D., Cravens, J. P., Gajewski, W., Kropp, W. R., Mine, S., Liu, D. W., Smy, M. B., Sobel, H. W., Sterner, C. W., Vagins, M. R., Ganezer, K. S., Hill, J., Keig, W. E., Kim, J. Y., Lim, I. T., Ellsworth, R. W., Tasaka, S., Guillian, G., Kibayashi, A., Learned, J. G., Matsuno, S., Takemori, D., Messier, M. D., Hayato, Y., Ichikawa, A. K., Ishida, T., Ishii, T., Iwashita, T., Kameda, J., Kobayashi, T., Maruyama, T., Nakamura, K., Nitta, K., Oyama, Y., Sakuda, M., Totsuka, Y., Suzuki, A. T., Hasegawa, M., Hayashi, K., Inagaki, T., Kato, I., Maesaka, H., Morita, T., Nakaya, T., Nishikawa, K., Sasaki, T., Ueda, S., Yamamoto, S., Haines, T. J., Dazeley, S., Hatakeyama, S., Svoboda, R., Blaufuss, E., Goodman, J. A., Sullivan, G. W., Turcan, D., Scholberg, K., Habig, A., Jung, C. K., Kato, T., Kobayashi, K., Malek, M., Mauger, C., McGrew, C., Sarrat, A., Sharkey, E., Yanagisawa, C., Toshito, T., Mitsuda, C., Miyano, K., Shibata, T., Kajiyama, Y., Nagashima, Y., Takita, M., Yoshida, M., Kim, H. I., Okazawa, H., Ishizuka, T., Choi, Y., Seo, H. K., Gando, Y., Hasegawa, T., Inoue, K., Shirai, J., Suzuki, A., Koshiba, M., Hashimoto, T., Nakajima, Y., Nishijima, K., Harada, T., Ishino, H., Morii, M., Nishimura, R., Watanabe, Y., Kielczewska, D., Zalipska, J., Gran, R., Shiraishi, K. K., Washburn, K., and Wilkes, R. J.

Subjects
High Energy Physics - Experiment, Astrophysics
Abstract

We present the results of indirect searches for Weakly Interacting Massive Particles (WIMPs) with 1679.6 live days of data from the Super-Kamiokande detector using neutrino-induced upward through-going muons. The search is performed by looking for an excess of high energy muon neutrinos from WIMP annihilations in the Sun, the core of the Earth, and the Galactic Center, as compared to the number expected from the atmospheric neutrino background. No statistically significant excess was seen. We calculate flux limits in various angular cones around each of the above celestial objects. We obtain conservative model-independent upper limits on WIMP-nucleon cross-section as a function of WIMP mass and compare these results with the corresponding results from direct dark matter detection experiments., Comment: 10 pages, 14 figures, Submitted to Phys. Rev. D

Published
2004
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7. Relative contributions of lattice distortion and orbital ordering to resonant x-ray scattering in manganites

Author

Nakamura, M., Izumi, M., Ogawa, N., Ohsumi, H., Wakabayashi, Y., and Miyano, K.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We investigated the origin of the energy splitting observed in the resonant x-ray scattering (RXS) in manganites. Using thin film samples with controlled lattice parameters and orbital states at a fixed orbital filling, we estimated that the contribution of the interatomic Coulomb interaction relative to the Jahn-Teller mechanism is insignificant and at most 0.27. This indicates that RXS probes mainly Jahn-Teller distortion in manganites., Comment: 8 pages, 4 figures

Published
2004
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8. Results from One Thousand Days of Real-Time, Directional Solar-Neutrino Data

Author

Hirata, K. S., primary, Inoue, K., additional, Kajita, T., additional, Kifune, T., additional, Kihara, K., additional, Nakahata, M., additional, Nakamura, K., additional, Ohara, S., additional, Sato, N., additional, Suzuki, Y., additional, Totsuka, Y., additional, Yaginuma, Y., additional, Mori, M., additional, Oyama, Y., additional, Suzuki, A., additional, Takahashi, K., additional, Yamada, M., additional, Koshiba, M., additional, Suda, T., additional, Tajima, T., additional, Miyano, K., additional, Miyata, H., additional, Takei, H., additional, Fukuda, Y., additional, Kodera, E., additional, Nagashima, Y., additional, Takita, M., additional, Kaneyuki, K., additional, Tanimori, T., additional, Bcicr, E. W., additional, Feldscher, L. R., additional, Frank, E. D., additional, Frati, W., additional, Kim, S. B., additional, Mann, A. K., additional, Newcomer, F. M., additional, Berg, R. Van, additional, and Zhang, W., additional

Published
2018
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14. Structural study on $\mbox{\sffamily\bfseries Pr}_{\hbox{\sffamily\bfseries\fontsize{10}{12}\selectfont 0.55}} \mbox{\sffamily\bfseries (Ca}_{\hbox{\sffamily\bfseries\fontsize{10}{12}\selectfont 1$-y$}} \mbox{\sffamily\bfseries Sr}_{\hbox{\sffamily\bfseries\fontsize{10}{12}\selectfont $y$}} \mbox{\sffamily\bfseries )}_{\hbox{\sffamily\bfseries\fontsize{10}{12}\selectfont 0.45}} \mbox{\sffamily\bfseries MnO}_{\hbox{\sffamily\bfseries\fontsize{10}{12}\selectfont 3}}$ thin films on perovskite (011) substrate

Author

Wakabayashi, Y., Takubo, N., Miyano, K., and Sawa, H.

Published
2009
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20. Performance of a double-sided silicon microstrip detector with a wide-pitch N-side readout using a field-plate and multi P-stop structure

Author

Saitoh, Y., Akamine, T., Inoue, M., Yamanaka, J., Echigo, N., Miyahara, S., Kamiya, M., Ikeda, H., Matsuda, T., Bozek, A., Haba, J., Koike, S., Ozaki, H., Tanaka, M., Iwasaki, H., Higashi, Y., Tsuboyama, T., Yamada, Y., Banas, E., Natkaniec, Z., Palka, H., Rozanska, M., Rybicki, K., Okuno, S., Tajima, H., Aihara, H., Fukunaga, C., Hirose, T., Asano, Y., Mori, S., Tsujita, Y., Miyata, H., Miyano, K., Hazumi, M., Hara, T., Kawasaki, T., Nagashima, Y., and Senyo, K.

Subjects
Semiconductor nuclear counters -- Design and construction, Nuclear track detectors -- Design and construction, Particle accelerators -- Equipment and supplies, Business, Electronics, Electronics and electrical industries
Abstract

The previous double-sided silicon microstrip detector (DSSDs) prototype with integrated coupling capacitors formed by oxide-nitride-oxide (ONO) dielectric film showed band-to-band tunneling (BBT) current at the field-plate structure for the [N.sup.+] strip, which represented a limitation of the biasing configuration. We report improved characteristics of the modified field-plate structure and the wide-pitch n-side readout using a multi p-stop structure combined thereon.

Published
1997

24. Free-ion yield for tetramethylsilane and tetramethylgermanium

Author

Hoshi, Y., Higuchi, M., Iso, H., Sakamoto, M., Ooyama, K., Yuta, H., Abe, K., Hasegawa, K., Suekane, F., Kawamura, N., Neichi, M., Suzuki, K., Masuda, K., Kikuchi, R., and Miyano, K.

Subjects
Ionization -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Free-ion yields from 207Bi conversion electrons were measured as a function of applied electric field in an ionization chamber filled with tetramethylsilane (TMS) or tetramethylgermanium (TMG), which were purified by simple methods. Also, the mean thermalization length of electrons liberated in the liquid was calculated by fitting a Gaussian form for the distribution function. The total free-ion yield and thermalization length in TMS and TMG were obtained to be 3.1 !+ or -^ 0.3, 3.5 !+ or -^ 0.2 and 191 !+ or -^ 12 !Angstrom^, 173 !+ or -^ 16 !Angstrom^, respectively, including the impurity effect in liquid.

Published
1993

26. The Super-Kamiokande detector

Author

Fukuda, S., Fukuda, Y., Hayakawa, T., Ichihara, E., Ishitsuka, M., Itow, Y., Kajita, T., Kameda, J., Kaneyuki, K., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Moriyama, S., Nakahata, M., Nakayama, S., Namba, T., Obayashi, Y., Okada, A., Oketa, M., Okumura, K., Oyabu, T., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, Y., Toshito, T., Totsuka, Y., Yamada, S., Desai, S., Earl, M., Hong, J.T., Kearns, E., Masuzawa, M., Messier, M.D., Stone, J.L., Sulak, L.R., Walter, C.W., Wang, W., Scholberg, K., Barszczak, T., Casper, D., Liu, D.W., Gajewski, W., Halverson, P.G., Hsu, J., Kropp, W.R., Mine, S., Price, L.R., Reines, F., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Flanagan, J.W., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Hayato, Y., Ishii, T., Ichikawa, A., Kanzaki, J., Kobayashi, T., Maruyama, T., Nakamura, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, O., Echigo, S., Iwashita, T., Kohama, M., Suzuki, A.T., Hasegawa, M., Inagaki, T., Kato, I., Maesaka, H., Nakaya, T., Nishikawa, K., Yamamoto, S., Haines, T.J., Kim, B.K., Sanford, R., Svoboda, R., Blaufuss, E., Chen, M.L., Conner, Z., Goodman, J.A., Guillian, E., Sullivan, G.W., Turcan, D., Habig, A., Ackerman, M., Goebel, F., Hill, J., Jung, C.K., Kato, T., Kerr, D., Malek, M., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Inaba, S., Ito, K., Kirisawa, M., Kitaguchi, M., Mitsuda, C., Miyano, K., Saji, C., Takahata, M., Takahashi, M., Higuchi, K., Kajiyama, Y., Kusano, A., Nagashima, Y., Nitta, K., Takita, M., Yamaguchi, T., Yoshida, M., Kim, H.I., Kim, S.B., Yoo, J., Okazawa, H., Etoh, M., Fujita, K., Gando, Y., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Inoue, K., Ishihara, K., Iwamoto, T., Koga, M., Nishiyama, I., Ogawa, H., Shirai, J., Suzuki, A., Takayama, T., Tsushima, F., Koshiba, M., Ichikawa, Y., Hashimoto, T., Hatakeyama, Y., Koike, M., Horiuchi, T., Nemoto, M., Nishijima, K., Takeda, H., Fujiyasu, H., Futagami, T., Ishino, H., Kanaya, Y., Morii, M., Nishihama, H., Nishimura, H., Suzuki, T., Watanabe, Y., Kielczewska, D., Golebiewska, U., Berns, H.G., Boyd, S.B., Doyle, R.A., George, J.S., Stachyra, A.L., Wai, L.L., Wilkes, R.J., Young, K.K., and Kobayashi, H.

Published
2003
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31. Investigation of the influence of coadsorbent dye upon the interfacial structure of dye-sensitized solar cells.

Author

Honda, M., Yanagida, M., Han, L., and Miyano, K.

Subjects
DYE-sensitized solar cells, SORBENTS, INTERFACES (Physical sciences), SYNCHROTRON radiation, X-ray photoelectron spectroscopy, ISOTHIOCYANATES, SHORT-circuit currents
Abstract

The interface between Ru(tcterpy)(NCS)3TBA2 [black dye (BD); tcterpy = 4,4',4"-tricarboxy-2,2':6',2"-terpyridine, NCS = thiocyanato, TBA = tetrabutylammonium cation] and nanocrystalline TiO2, as found in dye-sensitized solar cells, is investigated by soft-X-ray synchrotron radiation and compared with the adsorption structure of cis-Ru(Hdcbpy)2(NCS)2TBA2 (N719; dcbpy = 4,4/-dicarboxy-2,2'-bipyridine) on TiO2 to elucidate the relationship between the adsorption mode of BD and the photocurrent with and without coadsorbed indoline dye D131. The depth profile is charac-terized with X-ray photoelectron spectroscopy and S K-edge X-ray absorption fine structure using synchrotron radiation. Both datasets indicate that one of the isothiocyanate groups of BD interacts with TiO2 via its S atom when the dye is adsorbed from a single-component solution. In contrast, the interaction is slightly suppressed when D131 is coadsorbed, indicated by the fact that the pres-ence of D131 changes the adsorption mode of BD. Based upon these results, the number of BD dye molecules interacting with the substrate is shown to decrease by 10% when D131 is coadsorbed, and the dissociation is shown to be related to the short-circuit photocurrent in the 600-800 nm re-gion. The design of a procedure to promote the preferential adsorption of D131 therefore leads to an improvement of the short-circuit current and conversion efficiency. [ABSTRACT FROM AUTHOR]

Published
2014
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32. Visualization and switching of the local insulator-metal transition in Pr0.7Ca0.3MnO3

Author

Fiebig, M., Miyano, K., Tomioka, Y., and Tokura, Y.

Subjects
Complex compounds -- Research, Phase transformations (Statistical physics) -- Research, Magnetization -- Research, Physics
Abstract

The photoinduced insulator-metal transition in the magnetoresistance compound Pr0.7Ca0.3MnO3 was examined using optical spectroscopy and topography techniques. The transition was shown to generate a well-localized conducting path while the bulk of the sample remained insulating. The metallic state encountered in the transition bore many features characteristic for the insulator-metal transition. Results clearly showed that the photoinduced transition represents a different state in which the insulating and the metallic ground state are strongly competing.

Published
1999

34. Band bending at Al, In, Ag, and Pt interfaces with CdTe and ZnTe (110)

Author

Wahi, A. K, Miyano, K, Carey, G. P, Chiang, T. T, and Lindau, I

Subjects
Solid-State Physics
Abstract

UV and X-ray photoelectron spectroscopic methods are presently used to study the band-bending behavior and interfacial chemistry of Al, In, Ag, and Pt overlayers on vacuum-cleaved p-CdTe and p-ZnTe (110). All four metals are found to yield Schottky barriers on CdTe and ZnTe. The metal-induced gap states model prediction of a difference in barrier heights for two semiconductors which is dependent on their band lineup is borne out by the results for Ag, Pt, and Al, but not for In. Reaction and intermixing for Al, Ag, and Pt overlayers on CdTe and ZnTe indicate that these interfaces are not ideal.

Published
1990
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35. Charge- and orbital-ordering patterns in Bi1/2Sr1/2MnO3 thin films studied by Raman scattering.

Author

Kawasaki, T., Ogimoto, Y., Ogawa, N., Miyano, K., Tamaru, H., and Izumi, M.

Subjects
RAMAN spectroscopy, THIN films, LATTICE dynamics, POLARONS, PHONONS, RAMAN effect, MAGNETORESISTANCE, FERROMAGNETISM
Abstract

Polarized Raman spectroscopy has been applied for Bi1/2Sr1/2MnO3 thin films on SrTiO3(001) substrate in order to clarify the charge- and orbital-ordering patterns. From the mode assignment on the basis of group theoretical analysis and the lattice dynamical calculations previously reported, it is concluded that the conventional checkerboard charge-order model is more appropriate than the Zener polaron model. It is also confirmed that the major peaks are activated by charge and orbital ordering from the comparison between the temperature dependence of the intensity of the (1120) superlattice reflection peak in synchrotron x-ray powder diffraction and that of the intensity of the phonon peaks observed in the Raman spectra. [ABSTRACT FROM AUTHOR]

Published
2007
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36. Radiation damage to tetramethylsilane and tetramethylgermanium ionization chambers

Author

Hoshi, Y., Higuchi, M., Oyama, K., Akaishi, H., Yuta, H., Abe, K., Hasegawa, K., Suekane, F., Nagamine, T., Kawamura, N., Neichi, K., Katayama, J., Nakajima, T., Masuda, K., Kikuchi, R., and Miyano, K.

Subjects
Radiation chemistry -- Research, Ionizing radiation -- Research, Business, Electronics, Electronics and electrical industries
Abstract

Two detector media suitable for a warm liquid, ionization chamber filled with tetramethylsilane (TMS) and tetramethylgermanium (TMG) were exposed to [Gamma] radiation from a 60Co source up to dose 579Gray and 902Gray, respectively. The electron lifetimes and the free ion yields were measured as a function of accumulated radiation dose. A similar behavior of the electron lifetimes and the free ion yields with increasing radiation dose was observed between the TMS and TMG ionization chambers.

Published
1994

37. Neutrino-induced upward stopping muons in Super-Kamiokande

Author

Fukuda, Y., Ishihara, K., Itow, Y., Kajita, T., Kameda, J., Kasuga, S., Kobayashi, K., Kobayashi, Y., Koshio, Y., Miura, M., Nakahata, M., Nakayama, S., Obayashi, Y., Okada, A., Okumura, K., Sakurai, N., Shiozawa, M., Suzuki, Y., Takeuchi, H., Takeuchi, Y., Totsuka, Y., Yamada, S., Earl, M., Habig, A., Kearns, E., Messier, M.D., Scholberg, K., Stone, J.L., Sulak, L.R., Walter, C.W., Goldhaber, M., Barszczak, T., Casper, D., Gajewski, W., Kropp, W.R., Mine, S., Price, L.R., Smy, M., Sobel, H.W., Vagins, M.R., Ganezer, K.S., Keig, W.E., Ellsworth, R.W., Tasaka, S., Kibayashi, A., Learned, J.G., Matsuno, S., Stenger, V.J., Takemori, D., Ishii, T., Ishino, H., Kobayashi, T., Nakamura, K., Oyama, Y., Sakai, A., Sakuda, M., Sasaki, O., Echigo, S., Kohama, M., Suzuki, A.T., Inagaki, T., Nishikawa, K., Haines, T.J., Blaufuss, E., Kim, B.K., Sanford, R., Svoboda, R., Chen, M.L., Goodman, J.A., Sullivan, G.W., Hill, J., Jung, C.K., Martens, K., Mauger, C., McGrew, C., Sharkey, E., Viren, B., Yanagisawa, C., Doki, W., Kirisawa, M., Inaba, S., Miyano, K., Okazawa, H., Saji, C., Takahashi, M., Takahata, M., Higuchi, K., Nagashima, Y., Takita, M., Yamaguchi, T., Yoshida, M., Kim, S.B., Etoh, M., Hasegawa, A., Hasegawa, T., Hatakeyama, S., Inoue, K., Iwamoto, T., Koga, M., Maruyama, T., Ogawa, H., Shirai, J., Suzuki, A., Tsushima, F., Koshiba, M., Hatakeyama, Y., Koike, M., Nemoto, M., Nishijima, K., Fujiyasu, H., Futagami, T., Hayato, Y., Kanaya, Y., Kaneyuki, K., Watanabe, Y., Kielczewska, D., George, J.S., Stachyra, A.L., Wilkes, R.J., and Young, K.K.

Published
1999
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38. Measurement of radon concentrations at Super-Kamiokande

Author

Takeuchi, Y, Okumura, K, Kajita, T, Tasaka, S, Nemoto, M, Fukuda, Y, Okazawa, H, Hayakawa, T, Ishihara, K, Ishino, H, Itow, Y, Kameda, J, Kasuga, S, Kobayashi, K, Kobayashi, Y, Koshio, Y, Miura, M, Nakahata, M, Nakayama, S, Obayashi, Y, Okada, A, Sakurai, N, Shiozawa, M, Suzuki, Y, Takeuchi, H, Totsuka, Y, Yamada, S, Earl, M, Habig, A, Kearns, E, Messier, M.D, Scholberg, K, Stone, J.L, Sulak, L.R, Walter, C.W, Goldhaber, M, Barszczak, T, Casper, D, Gajewski, W, Kropp, W.R, Mine, S, Price, L.R, Smy, M, Sobel, H.W, Vagins, M.R, Ganezer, K.S, Keig, W.E, Ellsworth, R.W, Kibayashi, A, Learned, J.G, Matsuno, S, Stenger, V.J, Takemori, D, Ishii, T, Kanzaki, J, Kobayashi, T, Nakamura, K, Nishikawa, K, Oyama, Y, Sakai, A, Sakuda, M, Sasaki, O, Echigo, S, Kohama, M, Suzuki, A.T, Haines, T.J, Blaufuss, E, Kim, B.K, Sanford, R, Svoboda, R, Chen, M.L, Goodman, J.A, Sullivan, G.W, Hill, J, Jung, C.K, Martens, K, Mauger, C, McGrew, C, Sharkey, E, Viren, B, Yanagisawa, C, Doki, W, Kirisawa, M, Inaba, S, Miyano, K, Saji, C, Takahashi, M, Takahata, M, Higuchi, K, Nagashima, Y, Takita, M, Yamaguchi, T, Yoshida, M, Kim, S.B, Etoh, M, Hasegawa, A, Hasegawa, T, Hatakeyama, S, Inoue, K, Iwamoto, T, Koga, M, Maruyama, T, Ogawa, H, Shirai, J, Suzuki, A, Tsushima, F, Koshiba, M, Hatakeyama, Y, Koike, M, Nishijima, K, Fujiyasu, H, Futagami, T, Hayato, Y, Kanaya, Y, Kaneyuki, K, Watanabe, Y, Kielczewska, D, George, J.S, Stachyra, A.L, Wai, L.L, Wilkes, R.J, and Young, K.K

Published
1999
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39. Calibration of Super-Kamiokande using an electron LINAC: The Super-Kamiokande Collaboration

Author

Nakahata, M, Fukuda, Y, Hayakawa, T, Ichihara, E, Inoue, K, Ishihara, K, Ishino, H, Itow, Y, Kajita, T, Kameda, J, Kasuga, S, Kobayashi, K, Kobayashi, Y, Koshio, Y, Martens, K, Miura, M, Nakayama, S, Okada, A, Okumura, K, Sakurai, N, Shiozawa, M, Suzuki, Y, Takeuchi, Y, Totsuka, Y, Yamada, S, Earl, M, Habig, A, Kearns, E, Messier, M.D, Scholberg, K, Stone, J.L, Sulak, L.R, Walter, C.W, Goldhaber, M, Barszczak, T, Casper, D, Gajewski, W, Halverson, P.G, Hsu, J, Kropp, W.R, Price, L.R, Reines, F, Smy, M, Sobel, H.W, Vagins, M.R, Ganezer, K.S, Keig, W.E, Ellsworth, R.W, Tasaka, S, Flanagan, J.W, Kibayashi, A, Learned, J.G, Matsuno, S, Stenger, V.J, Takemori, D, Ishii, T, Kanzaki, J, Kobayashi, T, Mine, S, Nakamura, K, Nishikawa, K, Oyama, Y, Sakai, A, Sakuda, M, Sasaki, O, Echigo, S, Kohama, M, Suzuki, A.T, Haines, T.J, Blaufuss, E, Kim, B.K, Sanford, R, Svoboda, R, Chen, M.L, Conner, Z, Goodman, J.A, Sullivan, G.W, Hill, J, Jung, C.K, Mauger, C, McGrew, C, Sharkey, E, Viren, B, Yanagisawa, C, Doki, W, Miyano, K, Okazawa, H, Saji, C, Takahata, M, Nagashima, Y, Takita, M, Yamaguchi, T, Yoshida, M, Kim, S.B, Etoh, M, Fujita, K, Hasegawa, A, Hasegawa, T, Hatakeyama, S, Iwamoto, T, Koga, M, Maruyama, T, Ogawa, H, Shirai, J, Suzuki, A, Tsushima, F, Koshiba, M, Nemoto, M, Nishijima, K, Futagami, T, Hayato, Y, Kanaya, Y, Kaneyuki, K, Watanabe, Y, Kielczewska, D, Doyle, R.A, George, J.S, Stachyra, A.L, Wai, L.L, Wilkes, R.J, Young, K.K, and Kobayashi, H

Published
1999
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41. The Kamioka Proton Decay Experiment : - Present Status -

Author

Ikeda, H., Nishimura, A., Sugawara, H., Suzuki, A., Takahashi, K., Arisaka, K., Fujii, T., Kajita, T., Kobayashi, M., Koshiba, M., Nakahata, M., Totsuka, Y., Arafune, J., Kifune, T., Suda, T., Miyano, K., Asano, Y., Jaffe, A., editor, Ruelle, D., editor, Frampton, Paul H., editor, Glashow, Sheldon L., editor, and van Dam, Hendrik, editor

Published
1982
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42. Charge- and orbital-ordering patterns in [Bi.sub.1/2][Sr.sub.1/2]Mn[O.sub.3] thin films studied by Raman scattering

Author

Kawasaki, T., Ogimoto, Y., Ogawa, N., Miyano, K., Tamaru, H., and Izumi, M.

Subjects
Bismuth -- Electric properties, Strontium -- Electric properties, Raman spectroscopy -- Analysis, Physics
Abstract

The charge- and orbital-ordering (COO) patterns in [Bi.sub.1/2][Sr.sub.1/2]Mn[O.sub.3] thin films on SrTi[O.sub.3](001) substrates are investigated by using polarized Raman spectroscopy. The temperature dependence of the peaks has shown that the Raman spectra are activated by COO.

Published
2007

43. Local Lattice Distortion and Photo-Induced Phase Transition in Transition-Metal Compounds with Orbital Degeneracy

Author

Mizokawa, T., Takubo, Kou, Sudayama, T., Wakisaka, Y., Takubo, N., Miyano, K., Matsumoto, N., Nagata, S., Katayama, T., Nohara, M., Takagi, H., Ikeda, M., Kojima, N., Arita, M., Namatame, H., and Taniguchi, M.

Subjects
Phase transition, Materials science, Condensed matter physics, Photoemission spectroscopy, Dimer, Inverse photoemission spectroscopy, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Condensed Matter::Materials Science, chemistry.chemical_compound, Transition metal, chemistry, Octahedron, Lattice (order), Condensed Matter::Strongly Correlated Electrons, Excitation
Abstract

Transition-metal compounds with spin, charge, and orbital degrees of freedom tend to have frustrated electronic states coupled with local lattice distortions and to show drastic response against external stimuli such as optical excitation. By means of photoemission spectroscopy, we have studied the electronic states of transition-metal compounds with corner-sharing and edge-sharing MX 6 octahedra (M=transition metal, X=O, S, Se, Br) such as prerovskite-type Pr0.55(Ca1−y Sr y )0.45MnO3 and Cs2Au2Br6, spinel-type CuIr2S4, and quasi-one-dimensional Ta2NiSe5. In the perovskite compounds with corner-sharing octahedra, the charge-orbital states are stabilized by Jahn–Teller or breathing-type lattice distortions and can be destroyed by optical excitations. On the other hand, the charge-orbital states in the edge-sharing systems are stabilized by dimer formation and tend to be robust against optical excitations. Based on the photoemission results, we will discuss effects of local lattice distortions on the excitonic states obtained by optical excitations as well as those in ground states.

Published
2008

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