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Universal dynamics behavior in superionic conducting glasses

Kartini, E. and Nakamura, M. and Arai, M. and Inamura, Y. and Taylor, J.W. and Russina, M. (2009) Universal dynamics behavior in superionic conducting glasses. Solid State Ionics, 180 (6-8). pp. 506-509. ISSN 01672738

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Abstract

The inelastic neutron scattering experiment on superionic glass system AgI-AgPO3 have been performed in the energy and momentum transfer range from − 5 to 15 meV and 0 to 8 Å− 1, respectively by using a time of flight MARI instrument at Rutherford Appleton Laboratory, ISIS, UK. The E-dependence of the inelastic data show an excess intensity at low energy around 3 meV, the so-called Boson peak, which increased with the dopant salt. The Q-dependence of the elastic scattering reveals a prepeak at anomalously low Q value around 0.8 Å− 1, which is not observed in the undoped AgPO3 glass. The Q-dependence in the energy region from 1 to 3 meV shows clearly an excess intensity at Q ~ 2.2 Å − 1compared with the undoped AgPO3. All these features correlate with the increasing mobility of Ag+ ions due to the expansion of the network structure caused by salt doping, which leads to the increase of ionic conductivity. Similar results have also been observed in the corresponding superionic glass system AgI-Ag2S-AgPO3 that was observed by both MARI and NEAT instrument at HMI, Berlin. The results show a universal dynamic behavior in silver phosphate glasses.

Item Type: Article
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Struktur dan Bahan Maju > Teknik Sintesis Bahan Maju
Divisions: Pusat Sains dan Teknologi Bahan Maju
Depositing User: EDITOR PSTBM BATAN
Date Deposited: 01 Dec 2018 10:53
Last Modified: 01 Dec 2018 10:53
URI: http://repo-nkm.batan.go.id/id/eprint/7020

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