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Local structural, magnetic, and optical properties of Zn 1-xFexO thin films

  • S. Y. Seo
  • , C. H. Kwak
  • , S. H. Kim
  • , B. H. Kim
  • , C. I. Park
  • , S. H. Park
  • , S. W. Han*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

High quality Zn1-xFexO thin films were deposited on α-sapphire substrates by RF magnetron sputtering. X-ray absorption fine structure measurements showed that the chemical valence of Fe ions in the films was a mixture of 2 and 3 states, and Fe ions substituted mainly for the Zn sites in the films. DC-magnetization measurements revealed ferromagnetic properties from 5 to 300 K. The photoluminescence measurements at 15 K showed a sharp main transition peak at 3.35 eV along with a broad impurity peak at 2.45 eV. The structural and magnetization analyses of the Zn1-xFexO films strongly suggested that the ferromagnetism was the intrinsic properties of the films.

Original languageEnglish
Pages (from-to)2093-2097
Number of pages5
JournalJournal of Crystal Growth
Volume312
Issue number14
DOIs
StatePublished - 2010.07.1

Keywords

  • A1. Structure
  • A3. Film
  • A3. Sputtering

Quacquarelli Symonds(QS) Subject Topics

  • Materials Science
  • Chemistry
  • Physics & Astronomy

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