Molecular dynamics simulation of enhanced oxygen ion diffusion in strained yttria-stabilized zirconia

Ken Suzuki, Momoji Kubo, Yasunori Oumi, Ryuji Miura, Hiromitsu Takaba, Adil Fahmi, Abhijit Chatterjee, Kazuo Teraishi, Akira Miyamoto

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

The application of strain to yttria-stabilized zirconia (YSZ), which can be realized by sandwiching a thin YSZ film epitaxially between layers of a material with larger lattice constants, is proposed as a means to enhance oxygen ion mobility. The possible mechanism of such an enhancement was investigated by molecular dynamics using a CeO2-YSZ superlattice. The calculated diffusion coefficient of oxygen ions in the superlattice is some 1.7 times higher than in YSZ alone due to a decreased activation barrier from the strain of the YSZ structure.

Original languageEnglish
Pages (from-to)1502-1504
Number of pages3
JournalApplied Physics Letters
Volume73
Issue number11
DOIs
Publication statusPublished - 1998 Dec 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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