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

15 March 1999

journal article
Published by AIP Publishing in Applied Physics Letters

Vol. 74 (11) , 1564-1566
https://doi.org/10.1063/1.123617

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.

Keywords

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