Ionic conductivity in oxide heterostructures: The role of interfaces

Emiliana Fabbri*, Daniele Pergolesi, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

145 Scopus citations


Rapidly growing attention is being directed to the investigation of ionic conductivity in oxide film heterostructures. The main reason for this interest arises from interfacial phenomena in these heterostructures and their applications. Recent results revealed that heterophase interfaces have faster ionic conduction pathways than the bulk or homophase interfaces. This finding can open attractive opportunities in the field of micro-ionic devices. The influence of the interfaces on the conduction properties of heterostructures is becoming increasingly important with the miniaturization of solid-state devices, which leads to an enhanced interface density at the expense of the bulk. This review aims to describe the main evidence of interfacial phenomena in ion-conducting film heterostructures, highlighting the fundamental and technological relevance and offering guidelines to understanding the interface conduction mechanisms in these structures.

Original languageEnglish (US)
Article number054503
JournalScience and Technology of Advanced Materials
Issue number5
StatePublished - Oct 2010
Externally publishedYes


  • Heterostructure
  • Interfacial strain
  • Ionic conductivity
  • Oxide
  • Superlattice
  • Thin films

ASJC Scopus subject areas

  • General Materials Science


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