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Journal Articles

Local- and intermediate-range order in room temperature superionic conducting Ag-GeSe$$_{3}$$ glasses

Hosokawa, Shinya*; Kawakita, Yukinobu; Stellhorn, J. R.*; Pusztai, L.*; Blanc, N.*; Boudet, N.*; Ikeda, Kazutaka*; Otomo, Toshiya*

JPS Conference Proceedings (Internet), 33, p.011070_1 - 011070_7, 2021/03

BB2019-1957.pdf:3.47MB

Local- and intermediate-range atomic order in Ag ion conducting glasses Ag$$_{x}$$(GeSe$$_{3}$$)$$_{1-x}$$ with x = 0.15, 0.28, 0.33, and 0.50 were investigated by using a combination of AXS, XRD, ND, and RMC modeling. By adding the ND pdf to AXS and XRD results, reasonable partial structure factors and partial pdf were obtained by the RMC procedure. In contrast to the previous AXS and RMC study, a large number of Ag-Ge and Ge-Ge correlations are observed in the first coordination shell region, which is consistent with an ${it ab initio}$ MD simulation. The coordination numbers around the Ge and Se mostly follow the 8-$$N$$ rule over all Ag concentrations if Ag is not taken into account. With increasing the Ag concentration, the partial coordination numbers with Ge and Se atoms around Ag remarkably increases, while the Ag-Ag coordination number increases only slightly, indicating that the Ag conducting path is formed through the second neighboring Ag-Ag correlations.

Journal Articles

High-temperature XAFS study of solid and molten SrCl$$_2$$

Okamoto, Yoshihiro; Yaita, Tsuyoshi; Minato, Kazuo

Journal of Non-Crystalline Solids, 333(2), p.182 - 186, 2004/02

 Times Cited Count:11 Percentile:68.51(Materials Science, Ceramics)

The local structure of solid and molten SrCl$$_2$$ was investigated by X-ray absorption fine structure(XAFS) technique. A superionic conduction state was observed below the melting point. The XAFS data at molten state was obtained at 1000$$^{circ}$$C. According to the curve fitting analysis, the nearest Sr$$^{2+}$$-Cl$$^-$$ distance and the coordination number are 2.99${AA }$ and 6.6 in molten state. XAFS functions calculated from molecular dynamics simulation results were copmpared with the experimental XAFS data.

Journal Articles

Diffuse neutron scattering from AgBr; Application to Rietveld refinements

Sakuma, Takaaki*; Nakamura, Y.*; Hirota, M.*; Murakami, A.*; Ishii, Yoshinobu

Solid State Ionics, 127(3-4), p.295 - 300, 2000/01

 Times Cited Count:8 Percentile:44.62(Chemistry, Physical)

no abstracts in English

Journal Articles

Scattering intensity from crystalline and non-crystalline materials including correlations of thermal displacements of atoms

Sakuma, T.*; *; Murakami, A.*; *; Ishii, Yoshinobu

High Temp. Mater. Process., 18(1-2), p.41 - 48, 1999/00

no abstracts in English

Journal Articles

Structural study of lithium titanogallate prepared by ion exchange via one-dimensional tunnel-like pathways

*; *; *; Watanabe, Mamoru*; *; Morii, Yukio; Shimojo, Yutaka

Solid State Ionics, 113-115, p.471 - 475, 1998/00

 Times Cited Count:3 Percentile:22.13(Chemistry, Physical)

no abstracts in English

Journal Articles

Diffuse neutron scattering from the superionic phase of Cu$$_{2}$$Se

*; *; *; Shimojo, Yutaka; Morii, Yukio

Physica B; Condensed Matter, 213-214, p.399 - 401, 1995/00

 Times Cited Count:12 Percentile:60.21(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Dielectric anomaly at the superionic phase transition in PbF$$_{2}$$

;

Solid State Ionics, 51, p.75 - 78, 1992/00

 Times Cited Count:0 Percentile:0.01(Chemistry, Physical)

no abstracts in English

Journal Articles

Inelastic neutron scattering of (AgI)$$_{x}$$(AgPO$$_{3}$$)$$_{1-x}$$ glasses

*; *; *; Funahashi, Satoru

Solid State Ionics, 53-56, p.1164 - 1167, 1992/00

 Times Cited Count:5 Percentile:34.66(Chemistry, Physical)

no abstracts in English

Oral presentation

Static and dynamic structures of superionic melts of noble-metal salts

Kawakita, Yukinobu; Tahara, Shuta*

no journal, , 

Oral presentation

Ion dynamics of superionic Melt CuI

Kawakita, Yukinobu; Tahara, Shuta*; Kikuchi, Tatsuya; Nakamura, Mitsutaka; Inamura, Yasuhiro; Maruyama, Kenji*; Yamauchi, Yasuhiro*; Nakajima, Kenji; Kawamura, Seiko; Kambara, Wataru*

no journal, , 

no abstracts in English

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