Nonvolatile Transport States in Ferrite Thin Films Induced by Field-Effect Involving Redox Processes

Kohei Fujiwara, Takashi Ichimura, Hidekazu Tanaka

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The conductivity and magnetoresistance of a practically useful ferrite compound are found to be electrically programmable in a nonvolatile manner. Electric-double-layer gating using an ionic liquid changes the surface oxidation state of spinel zinc ferrite via reversible redox processes. This unique electric-field effect, distinct from conventional electrostatic carrier doping, provides a new route for developing oxide-based field-effect devices.

Original languageEnglish
Article number1300108
JournalAdvanced Materials Interfaces
Volume1
Issue number3
DOIs
Publication statusPublished - 2014 Jun 1
Externally publishedYes

Keywords

  • ferrites
  • field effects
  • magnetic materials
  • transition-metal oxides

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering

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