Ferroelectric and Dielectric Properties of BaTiO3/Ba0.30Sr0.70TiO3 Superlattices

N. Ortega*, Ashok Kumar, Yu I. Yuzyuk, J. F. Scott, Rams Katiyar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

BaTiO3/Ba0.30Sr0.70TiO3 (BT/BST3070) artificial superlattice (SL) was fabricated by pulsed laser deposition on La0.67Sr0.33MnO3 (LSMO) coated (001) MgO substrates. Satellite reflections in X-ray diffraction are used to calculate the periodicity of SL structure indicates a period similar to 14 nm. Cross polarized Raman spectra show upward shift of the E(1TO) soft mode, this is markedly changed with respect to its parent BT layer thin film. The BT/BST3070 SL illustrates high dielectric constant (1100-1300) and low loss tangent (

Original languageEnglish
Pages (from-to)139-145
Number of pages7
JournalIntegrated Ferroelectrics
Volume134
DOIs
Publication statusPublished - 2012

Keywords

  • Superlattices
  • BT/BST
  • ferroelectric
  • dielectric
  • PLD
  • BATIO3/SRTIO3 SUPERLATTICES
  • THIN-FILMS
  • RAMAN-SPECTROSCOPY
  • POLARIZATION
  • ENHANCEMENT

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