Relation between high ionic conductivity and Boson peak in superionic glass

M. Arai, H. Iwase, M. Nakamura, T. Otomo, E. Kartini, Keiji Itoh, S. J. Levett, S. M. Bennington

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The inelastic neutron scattering measurements of superionic glass system (AgI)x(Ag2S)x(AgPO3)1-2x reveal that an excess intensity around 3 meV, the so-called boson peak, increases with the dopant salt concentration x. The composition dependence of boson peak intensity has a systematic relation with ionic dc conductivity. These correlated features are discussed from the viewpoint of free spaces involved with the expansion of network structure by salt doping. Cooperative dynamical properties concerned with free spaces contribute to the enhancement of hopping probability of Ag+ ions. Successive hopping is promoted in order to keep electric neutrality, where the hopping events of charged ion microscopically violates the electric neutrality. These processes should result in the high ionic conductivity of superionic glasses.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages299-302
Number of pages4
Volume832
DOIs
Publication statusPublished - May 5 2006
Externally publishedYes
EventFLOW DYNAMICS: The Second International Conference on Flow Dynamics - Sendai, Japan
Duration: Nov 16 2005Nov 18 2005

Other

OtherFLOW DYNAMICS: The Second International Conference on Flow Dynamics
CountryJapan
CitySendai
Period11/16/0511/18/05

Fingerprint

ion currents
bosons
salts
glass
ions
inelastic scattering
neutron scattering
expansion
augmentation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Arai, M., Iwase, H., Nakamura, M., Otomo, T., Kartini, E., Itoh, K., ... Bennington, S. M. (2006). Relation between high ionic conductivity and Boson peak in superionic glass. In AIP Conference Proceedings (Vol. 832, pp. 299-302) https://doi.org/10.1063/1.2204511

Relation between high ionic conductivity and Boson peak in superionic glass. / Arai, M.; Iwase, H.; Nakamura, M.; Otomo, T.; Kartini, E.; Itoh, Keiji; Levett, S. J.; Bennington, S. M.

AIP Conference Proceedings. Vol. 832 2006. p. 299-302.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Arai, M, Iwase, H, Nakamura, M, Otomo, T, Kartini, E, Itoh, K, Levett, SJ & Bennington, SM 2006, Relation between high ionic conductivity and Boson peak in superionic glass. in AIP Conference Proceedings. vol. 832, pp. 299-302, FLOW DYNAMICS: The Second International Conference on Flow Dynamics, Sendai, Japan, 11/16/05. https://doi.org/10.1063/1.2204511
Arai M, Iwase H, Nakamura M, Otomo T, Kartini E, Itoh K et al. Relation between high ionic conductivity and Boson peak in superionic glass. In AIP Conference Proceedings. Vol. 832. 2006. p. 299-302 https://doi.org/10.1063/1.2204511
Arai, M. ; Iwase, H. ; Nakamura, M. ; Otomo, T. ; Kartini, E. ; Itoh, Keiji ; Levett, S. J. ; Bennington, S. M. / Relation between high ionic conductivity and Boson peak in superionic glass. AIP Conference Proceedings. Vol. 832 2006. pp. 299-302
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