Substitution Effects on FeSe Superconductor (2008)
Mizuguchi, Y., Tomioka, F., Tsuda, S., Yamaguchi, T., Takano, Y.
We investigated the substitution effects on FeSe system, which has the simplest structure among iron-based superconductors. An enhancement of a superconducting transition temperature Tc was observed...
Growth of superconducting single-crystalline (Lu, Ca)Ba2Cu3O7-d whiskers (2008)
Deguchi, K., Ogawara, S., Okutsu, T., Nagao, M., Watanabe, T., Mizuguchi, Y., ...
Single-crystalline (Lu, Ca)Ba2Cu3O7-d (Lu(Ca)123) whiskers have been successfully grown using the Te-doping method. X-ray diffraction patterns of Lu(Ca)123 whiskers showed sharp (0 0 l) peaks...
Superconductivity in S-substituted FeTe (2008)
Mizuguchi, Y., Tomioka, F., Tsuda, S., Yamaguchi, T., Takano, Y.
We have successfully synthesized a new superconducting phase of FeTe1-xSx with a PbO-type structure. It has the simplest crystal structure in iron-based superconductors. Superconducting transition...
FeTe as a candidate material for new iron-based superconductor (2008)
Mizuguchi, Y., Tomioka, F., Tsuda, S., Yamaguchi, T., Takano, Y.
Tetragonal FeSe is a superconductor with a transition temperature Tc of 8 K and shows a huge enhancement of Tc with applying pressure. Tetragonal FeTe has a structure very analogous to...
Ishii, S., Nagao, M., Watanabe, T., Tsuda, S., Yamaguchi, T., Takano, Y.
We have synthesized a large amount of boron-doped multiwalled carbon nanotubes (MWNTs) by hot-filament chemical vapor deposition. The synthesis was carried out in a flask using a methanol solution of...
Nanoscale freezing of the 2D spin liquid Pr$_{3}$Ga$_{5}$SiO$_{14}$ (2008)
Zhou, H. D., Wiebe, C. R., Balicas, L., Takano, Y., Case, M. J., ...
In this letter, we report on the single crystal growth and physical characterization of the distorted kagom\'{e} system Pr$_3$Ga$_5$SiO$_{14}$. It is found that at zero magnetic field the system...
Kotegawa, H., Masaki, S., Awai, Y., Tou, H., Mizuguchi, Y., Takano, Y.
We report the results of $^{77}$Se--nuclear magnetic resonance (NMR) in $\alpha$-FeSe, which exhibits a similar crystal structure to the LaFeAsO$_{1-x}$F$_x$ superconductor and shows...
Crystal structure of the new FeSe1-x superconductor (2008)
Margadonna, S., Takabayashi, Y., McDonald, M. T., Kasperkiewicz, K., Mizuguchi, Y., Takano, Y., ...
The newly discovered superconductor FeSe1-x (x=0.08, Tconset=13.5 K at ambient pressure rising to 27 K at 1.48 GPa) exhibits a structural phase transition from tetragonal to orthorhombic below 70 K...
Tsujii, H., Rotundu, C. R., Ono, T., Tanaka, H., Andraka, B., Ingersent, K., ...
Specific heat and the magnetocaloric effect are used to probe the field-induced up-up-down phase of Cs2CuBr4, a quasi-two-dimensional spin-1/2 triangular antiferromagnet with near-maximal...
Switching Current Measurements of EuBa2Cu3Oy Intrinsic Josephson Junctions (2007)
Ueda, S., Okutsu, T., Ishii, S., Takano, Y.
We investigated the switching dynamics of two kinds of EuBa2Cu3Oy (Eu123) intrinsic Josephson junctions (IJJs) with different anisotropy parameters gamma (= (m*c/m*ab)1/2) tuned to 37 and 22. In...
Ishizaka, K., Eguchi, R., Tsuda, S., Yokota, T., Chainani, A., Kiss, T., ...
We investigate the temperature (T)-dependent low-energy electronic structure of a boron-doped diamond thin film using ultrahigh resolution laser-excited photoemission spectroscopy. We observe a clear...
Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2 (2006)
Helton, J. S., Matan, K., Shores, M. P., Nytko, E. A., Bartlett, B. M., Yoshida, Y., ...
We have performed thermodynamic and neutron scattering measurements on the S=1/2 kagome lattice antiferromagnet Zn Cu_3 (OH)_6 Cl_2. The susceptibility indicates a Curie-Weiss temperature of ~ -300...
Mukuda, H., Tsuchida, T., Harada, A., Kitaoka, Y., Takenouchi, T., Takano, Y., ...
We have investigated the superconductivity discovered in boron (B)-doped diamonds by means of 11B-NMR on heteroepitaxially grown (111) and (100) films. 11B-NMR spectra for all of the films are...
Periodic Oscillations of Josephson-Vortex Flow Resistance in Oxygen-Deficient Y1Ba2Cu3Ox (2006)
Nagao, M., Urayama, S., Kim, S. M., Wang, H. B., Yun, K. S., Takano, Y., ...
We measured the Josephson vortex flow resistance as a function of magnetic field applied parallel to the ab-planes using annealed Y1Ba2Cu3Ox intrinsic Josephson junctions having high anisotropy...
Roles of extraterrestrial complex organics in chemical evolution toward origins of life (2006)
Kobayashi, Kensei, Tonishi, H., Tsuboi, T., Suzuki, N., Kaneko, T., Takano, Y., ...
Cai, Y. Q., Chow, P. C., Restrepo, O. D., Takano, Y., Togano, K., Kito, H., ...
A sharp feature in the charge-density excitation spectra of single-crystal MgB$_{2}$, displaying a remarkable cosine-like, periodic energy dispersion with momentum transfer ($q$) along the...
Ishizaka, K., Eguchi, R., Tsuda, S., Yokoya, T., Kiss, T., Shimojima, T., ...
We have investigated the low energy electronic state of a boron-doped diamond thin film by the ultrahigh resolution laser-excited photoemission spectroscopy. We observed a clear shift of the leading...
Low-energy electrodynamics of superconducting diamond (2006)
Ortolani, M., Lupi, S., Baldassarre, L., Calvani, P., Schade, U., Takano, Y., ...
Heavily-boron-doped diamond films become superconducting with critical temperatures $T_c$ well above 4 K. Here we first measure the reflectivity of such a film down to 5 cm$^{-1}$, by also using...
Modeling of Cloud/Radiation Processes for Large-Scale Clouds and Tropical Anvils (2006)
Liou, K. N., Fu, Q., Krueger, S., Lee, J. L., Ou, S. C., Takano, Y.
This final report includes five reprints and preprints of papers associated with the modeling of cloud/radiation processes for large-scale clouds and tropical anvils. These papers present (1) a...
Liou, K. N., Ou, S. C., Takano, Y.
A three-dimensional (3-D) model has been developed for the transmission and backscattering of a high-energy laser beam through inhomogeneous high-level clouds in plane-parallel and spherical...
Raman study of electronic excitations in MgB2 with application of high magnetic field (2006)
Machtoub, L., Takano, Y., Kito, H.
We present the first results of Raman scattering with application of magnetic field on magnesium diboride (MgB2). In this work, we have investigated the magnetic field dependence of the 72 meV (E-2g...
Phonon Softening in Superconducting Diamond (2005)
Hoesch, M., Fukuda, T., Takenouchi, T., Sutter, J. P., Tsutsui, S., Baron, A. Q. R., ...
We observe strong softening of optical phonon modes in superconducting (Tc = 4.2 K) boron doped diamond near the Brillouin zone center using inelastic x-ray scattering from a CVD-grown highly...
Ou, Szu-cheng C, Liou, K N, Takano, Y, Slonaker, R L
This paper presents a conceptual approach toward the remote sensing of cirrus cloud particle size and optical depth using the degree of polarization and polarized reflectance associated with the...
Hagiwara, M., Tsujii, H., Rotundu, C. R., Andraka, B., Takano, Y., Tateiwa, N., ...
Specific heat experiments on single crystals of the S=1 quasi-one-dimensional bond-alternating antiferromagnet Ni(C_9H_24N_4)(NO_2)ClO_4, alias NTENP, have been performed in magnetic fields applied...
Hagiwara, M, Tsujii, H, Rotundu, C R, Andraka, B, Takano, Y, Tateiwa, N, ...
Specific-heat experiments on single crystals of the S=1 quasi-one-dimensional bond-alternating antiferromagnet Ni(C9H24N4)(NO2)ClO4 (NTENP) have been performed in magnetic fields applied both...
Tsujii, H., Andraka, B., Uchida, M., Tanaka, H., Takano, Y.
We have measured the specific heat of the coupled spin-dimer antiferromagnet Ba$_3$Mn$_2$O$_8$ to 50 mK in temperature and to 29 T in the magnetic field. The experiment extends to the midpoint of the...
24th International Conference on Low Temperature Physics (2005)
Takano, Y, Hershfield, S P, Hill, S O, Hirschfeld, P J, Goldman, A M
Kim, S. M., Wang, H. B., Hatano, T., Urayama, S., Kawakami, S., Nagao, M., ...
We have experimentally investigated the fluxon dynamics in a narrow Bi2Sr2CaCu2O8+d stack with junction length L~1.8 um. As an evidence of high-frequency excitation by a collective cavity mode, under...
Macroscopic quantum tunneling in a d-wave high-Tc superconductor (2004)
Inomata, K., Sato, S., Nakajima, K., Tanaka, A., Takano, Y., Wang, H. B., ...
There is a wide recognition that Josephson-junction-like structures intrinsic to the layered cuprate high temperature superconductors offer an attractive stage for exploiting possible applications to...
Tsujii, H., Honda, Z., Andraka, B., Katsumata, K., Takano, Y.
We have determined the magnetic phase diagram of the quasi-one-dimensional $S=$ 1 Heisenberg antiferromagnet $Ni (C_5 H_{14} N_2)_2 N_3 (PF_6)$ by specific heat measurements to 150 mK in temperature...
Superconductivity in CVD Diamond Thin Film Well-Above Liquid Helium Temperature (2004)
Takano, Y., Nagao, M., Kobayashi, K., Umezawa, H., Sakaguchi, I., Tachiki, M., ...
Diamond has always been adored as a jewel. Even more fascinating is its outstanding physical properties; it is the hardest material known in the world with the highest thermal conductivity....
A dilute limit of CeAl$_3$: Emergence of the single-ion Kondo scaling (2004)
Rotundu, C., Tsujii, H., Takano, Y., Andraka, B.
Strongly diluted Ce$_x$La$_{1-x}$Al$_3$ alloys have been studied by the low temperature specific heat in order to elucidate the mechanism that determine their ground state. All alloys with Ce...
Takano, Y, Honda, K, Kashima, M, Yotsui, Y, Igarashi, C, Petersson, A
Objective. The purpose of this study was to estimate the inter- and intraobserver agreement for interpreting magnetic resonance (MR) images of the temporomandibular joint (TMJ). Methods. The study...
Possible cometary organic compounds as sources of planetary biospheres (2004)
Kobayashi, Kensei, Takano, Y., Masuda, H., Tonishi, H., Kaneko, T., Hashimoto, H., ...
Various organic compounds including complex organic compounds have been detected in comets. Cometary organics are supposed to be formed in interstellar dust (ISD) environments. We examined possible...
Horiuchi, T., Takano, Y., Ishibashi, J., Marumo, K., Kobayashi, Kensei, 小林, 憲正, ...
Pure seawater samples, at a temperature of 300 degreesC (purity >97%) were collected from deep-sea hydrothermal vents at Suiyo Seamount, Izu-Bonin Arc, Pacific Ocean as a part of the Archaean Park...
Yabe, A, Hirasawa, S, Kasagi, N, Kitamura, T, Nakamachi, E, Takano, Y, ...
Nakane, T., Mochiku, T., Kito, H., Nagao, M., Itoh, J., Kumakura, H., ...
The metastable phase of an yttrium sesquicarbide compound, which was vary recently reported as a new superconductive phase with a Tc value of 18 K, was prepared under high pressure from the nominal...
High magnetic field phase diagram of PrOs4Sb12 (2003)
Rotundu, C. R., Tsujii, H., Takano, Y., Andraka, B., Sugawara, H., Aoki, Y., ...
The magnetic phase diagram of PrOs$_4$Sb$_{12}$ has been investigated by specific heat measurements between 8 and 32 T. A new Schottky anomaly due to excitations between two lowest...
Definitive experimental evidence for two-band superconductivity in MgB2 (2003)
Tsuda, S., Yokoya, T., Takano, Y., Kito, H., Matsushita, A., Yin, F., ...
The superconducting gap of MgB2 has been studied by high-resolution angle-resolved photoemission spectroscopy (ARPES). The momentum(k)-resolving capability of ARPES enables us to identify the s- and...
Tsujii, H., Rotundu, R. C., Andraka, B., Takano, Y., Kageyama, H., Ueda, Y.
We characterize the field-induced magnetic phases of SrCu2(BO3)2, a frustrated spin-1/2 Heisenberg antiferromagnet in the two-dimensional Shastry-Sutherland lattice, using specific heat in magnetic...
Komori, K., Kawagishi, K., Takano, Y., Fujii, H., Arisawa, S., Kumakura, H., ...
The paper reports the first successful fabrication of MgB2 superconducting tape using a flexible metallic substrate as well as its strong pinning force, which was verified by direct measurement of...
Single crystal MgB2 with anisotropic superconducting properties (2001)
Xu, M., Kitazawa, H., Takano, Y., Ye, J., Nishida, K., Abe, H., ...
The discovery of superconductor in magnesium diboride MgB2 with high Tc (39 K) has raised some challenging issues; whether this new superconductor resembles a high temperature cuprate...
Tsuda, S., Yokoya, T., Kiss, T., Takano, Y., Togano, K., Kitou, H., ...
We study the new binary intermetallic superconductor MgB2 using high-resolution photo-emission spectroscopy. The superconducting-state spectrum measured at 5.4 K shows a coherent peak with a shoulder...
Superconducting Properties of MgB2 Bulk Materials Prepared by High Pressure Sintering (2001)
Takano, Y., Takeya, H., Fujii, H., Kumakura, H., Hatano, T., Togano, K., ...
High-density bulk materials of a newly discovered 40K intermetallic MgB2 superconductor were prepared by high pressure sintering. Superconducting transition with the onset temperature of 39K was...
Detection of perfusion failure during open heart surgery with sublingual PCO2 (2000)
Inoue, H, Sato, I, Hitosugi, N, Takano, Y, Miyake, M, Sato, Y, ...
No abstract available.
Modeling of Cloud/Radiation Processes for Large-Scale Clouds and Tropical Anvils. (1998)
Liou, K. N., Lee, J. L., Ou, S. C., Takano, Y.
This interim report consists of three scientific papers: (1.) Lee, J.L., K.N. Liou and S.C. Ou, 1991: A three-dimensional large-scale cloud model: Testing the role of radiative heating and ice phase...
Liou, K. N., Ou, S. C., Rao, N. X., Takano, Y.
We have developed a detection scheme to identify single and multilayer cirrus cloud systems based on the physical properties of the AVHRR Chs, 1-2 reflectances and ratios, the brightness temperature...
Ou, S. C., Liou, K. N., Takano, Y., Yang, P., Rao, N. X.
A numerical scheme has been developed to identify multilayer cirrus cloud systems using AVHRR data based on the physical properties of the AVHRR channels 2-1 reflectance ratios, the brightness...
MAGNETIC ANISOTROPY OF R2Fe14B (R : RARE EARTHS) (1988)
Takano, Y., Satoh, Y., Sekizawa, K.
The temperature dependences of the magnetization and the heat capacity of R2Fe14B are explained using a simple two sublattice model in which a crystal field and an exchange interaction under the two...
MAGNETIC ANISOTROPY OF R2Fe14B (R : RARE EARTHS) (1988)
Takano, Y., Satoh, Y., Sekizawa, K.
The temperature dependences of the magnetization and the heat capacity of R2Fe14B are explained using a simple two sublattice model in which a crystal field and an exchange interaction under the two...
MAGNETIC ANISOTROPY OF R2Fe14B (R : RARE EARTHS) (1988)
Takano, Y., Satoh, Y., Sekizawa, K.
The temperature dependences of the magnetization and the heat capacity of R2Fe14B are explained using a simple two sublattice model in which a crystal field and an exchange interaction under the two...
MOBILITY OF POSITIVE IONS IN NORMAL AND SUPERFLUID 3He (1978)
Kokko, J., Paalanen, M., Schoepe, W., Takano, Y.
Positive ion mobility in liquid 3He has been measured below 200 mK. At the lowest temperature in the normal phase the drift velocity of the ions was found to be nonlinear with respect to electric...
MOBILITY OF POSITIVE IONS IN NORMAL AND SUPERFLUID 3He (1978)
Kokko, J., Paalanen, M., Schoepe, W., Takano, Y.
Positive ion mobility in liquid 3He has been measured below 200 mK. At the lowest temperature in the normal phase the drift velocity of the ions was found to be nonlinear with respect to electric...
MOBILITY OF POSITIVE IONS IN NORMAL AND SUPERFLUID 3He (1978)
Kokko, J., Paalanen, M., Schoepe, W., Takano, Y.
Positive ion mobility in liquid 3He has been measured below 200 mK. At the lowest temperature in the normal phase the drift velocity of the ions was found to be nonlinear with respect to electric...
Kubo, Y, Takano, Y, Endo, N, Yasuda, N, Tajima, S, Furusawa, I
Appressoria of the phytopathogenic fungus Colletotrichum lagenarium contain melanin, which has been implicated as an important factor in the penetration of host plants. A cDNA clone containing the...
Control of STA1 gene expression by the mating-type locus in yeasts.
Yamashita, I, Takano, Y, Fukui, S
Extracellular production of glucoamylase from the yeast Saccharomyces diastaticus carrying an STA1 gene (a structural gene for the enzyme) is repressed by the mating-type constitution a/alpha. We...
Kato, Y, Iwamoto, M, Koike, T, Suzuki, F, Takano, Y
Rabbit chondrocyte cultures on plastic dishes are capable of depositing a cartilaginous matrix, although the matrix does not calcify unless high levels of phosphate are added to the medium. In the...
Saegusa, M, Hashimura, M, Takano, Y, Ohbu, M, Okayasu, I
AIMS: To estimate the occurrence of human papillomavirus (HPV) infection in oesophageal or gastric carcinomas in patients in Japan. METHODS: 103 oesophageal and 99 gastric carcinomas were...