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Journal Articles

RHEED observation of BaTiO$$_3$$ thin films grown by MBE

Yoneda, Yasuhiro; Sakaue, Kiyoshi*; Terauchi, Hikaru*

Surface Science, 529(3), p.283 - 287, 2003/04

https://doi.org/10.1016/S0039-6028(03)00361-3
 Times Cited Count：8 Percentile：42.85(Chemistry, Physical)

Ferroelectric BaTiO$$_3$$ thin filmwith a thickness of 10ML were epitaxally grown on SrTiO$$_3$$ (001) substrate by very slow deposition using MBE. The investigation were carried out by two growth methods: (i) codeposition and (ii) alternate deposition. In-situ observation of RHEED confirmed that an epitaxial cube-on-cube structure was prepared. After the deposition, X-ray diffraction measurements were carried out. The 10-ML-thick BaTiO$$_3$$ films were highly ${it c}$-axis oriented single crystals with good film quality.

Journal Articles

Contribution of the surface diffusion on mass transfer of Ba$$^{2+}$$ in granite matrix

Yamaguchi, Tetsuji; Nakayama, Shinichi; Kawada, Chiharu*

Genshiryoku Bakkuendo Kenkyu, 9(1), p.61 - 66, 2002/09

https://doi.org/10.3327/jnuce.9.61

The effective diffusivity (${it D}$$$_{e}$$) and distribution ratio (${it K}$$$_{d}$$) of $$^{133}$$Ba$$^{2+}$$ in Inada granite have been determined by the through-diffusion method. Experiments were performed in triplicate for 10$$^{-1}$$, 1 and 10 mol m$$^{-3}$$ BaCl$$_{2}$$ solutions at 25$$^{circ}$$C. The ${it D}$$$_{e}$$ value obtained at a BaCl$$_{2}$$ concentration of 10 mol m$$^{-3}$$, agreed to the estimated value based on the pore diffusion model. The lower BaCl$$_{2}$$ concentrations yielded higher ${it D}$$$_{e}$$ values and higher ${it K}$$$_{d}$$ values. The variation in ${it D}$$$_{e}$$ was neither due to the speciation of barium in the solutions nor due to variation in physical properties of the pore structure in the rock. Contribution of diffusion in sorbed state should be responsible for the variation in ${it D}$$$_{e}$$.

Journal Articles

Pressure-temperature phase diagram of Ca$$_{2}$$Ba(C$$_{2}$$H$$_{5}$$COO)$$_{6}$$

; Ozawa, K.

Journal of the Physical Society of Japan, 38(2), p.467 - 470, 1975/02

https://doi.org/10.1143/JPSJ.38.467
 Times Cited Count：16

no abstracts in English

Journal Articles

Chlorination-Volatilization Processing of Irradiated Uranium Dioxide, (I); Sorption-Desorption of Fission Product Chlorides with Barium Chloride Bed

Kenmei, HIRANO

Journal of Nuclear Science and Technology, 7(12), p.601 - 609, 1970/12

https://doi.org/10.3327/jnst.7.601
 Times Cited Count：0

no abstracts in English

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