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Ionic Conduction in Nanoscale Films of Yttrium-Doped Barium Zirconate

Published online by Cambridge University Press:  26 February 2011

Joon Hyung Shim
Affiliation:
shimm@stanford.edu, Stanford University, Mechanical Engineering, 440 Escondido Mall, Bldg 530-226, Stanford, CA, 94305, United States, 650-387-8019, 650-723-5034
Turgut M Gur
Affiliation:
turgut@stanford.edu, Stanford University, Material Science Engineering, Stanford, CA, 94305, United States
Fritz B Prinz
Affiliation:
fbp@cdr.stanford.edu, Stanford University, Mechanical Engineering, Stanford, CA, 94305, United States
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Abstract

Proton conductivity of yttrium-doped barium zirconate grown on MgO(100) using pulsed laser deposition (PLD) has been explored as a function of film thickness (60∼670nm) related to crystal and grain structure in the nano scale. Highly textured thin film (60nm) without significant grain separation showed high ionic conductivity close to the bulk BYZ value while thick polycrystalline samples showed lower values with clear grain and grain boundary formation.

Type
Research Article
Copyright
Copyright © Materials Research Society 2007

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