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Integration of nonlinear dielectric barium strontium titanate with polycrystalline yttrium iron garnet

  • Q. X. Jia
  • , J. R. Groves
  • , P. Arendt
  • , Y. Fan
  • , A. T. Findikoglu
  • , S. R. Foltyn
  • , H. Jiang
  • , F. A. Miranda

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

Biaxially oriented nonlinear dielectric Ba0.6Sr0.4TiO3 (BST) films have been grown on polycrystalline ferrite yttrium iron garnet (YIG) substrates. We use a structurally and chemically compatible MgO buffer to improve the crystallinity of the BST on polycrystalline YIG substrates, where the biaxially oriented MgO is deposited by an ion-beam assisted-deposition technique. The biaxially oriented BST has a dielectric loss of less than 0.01 and a capacitance tunability of greater than 25% at a direct current bias voltage of 40 V at room temperature.

Original languageEnglish
Pages (from-to)1564-1566
Number of pages3
JournalApplied Physics Letters
Volume74
Issue number11
DOIs
StatePublished - 1999

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