Preparation and magnetic properties of amorphous EuTiO3 thin films

Yanhua Zong, Kazuma Kugimiya, Koji Fujita, Hirofumi Akamatsu, Kazuyuki Hirao, Katsuhisa Tanaka

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Abstract

Amorphous EuTiO3 thin films have been prepared by a pulsed laser deposition method, and their structural and magnetic properties have been investigated. High-resolution transmission electron microscope image and selected-area electron diffraction pattern as well as X-ray diffraction pattern confirm the amorphous nature of the thin films. 151Eu conversion-electron Mössbauer effect measurements show that almost all of the europium ions are present as Eu2+ in the thin films. The amorphous EuTiO3 thin film exhibits a positive Weiss temperature of 8.7 K, indicating predominant ferromagnetic interactions among Eu2+ ions. The signature of a ferromagnetic-like transition is observed at around 5.5 K.

Original languageEnglish
Pages (from-to)2389-2392
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume356
Issue number44-49
DOIs
Publication statusPublished - Oct 1 2010
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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