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

Journal Article · Mon Mar 01 00:00:00 EST 1999 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.123617· OSTI ID:321947

Jia, Q X; Groves, J R; Arendt, P; Fan, Y; Findikoglu, A T; Foltyn, S R ^[1]; Jiang, H ^[2]; Miranda, F A ^[3]

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1. Superconductivity Technology Center, Mail Stop K763, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. NZ Applied Technologies, 150-C New Boston Street, Woburn, Massachusetts 01801 (United States)
3. NASA Lewis Research Center, 21000 Brookpark Road, MS 54-5, Cleveland, Ohio 44135 (United States)

Biaxially oriented nonlinear dielectric Ba{sub 0.6}Sr{sub 0.4}TiO{sub 3} (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{percent} at a direct current bias voltage of 40 V at room temperature. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 321947
• Journal Information: Applied Physics Letters, Vol. 74, Issue 11; Other Information: PBD: Mar 1999
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
FERROELECTRIC MATERIALS
YTTRIUM COMPOUNDS
GARNETS
MAGNESIUM COMPOUNDS
CAPACITANCE
BARIUM COMPOUNDS
TITANATES
FERRITE GARNETS
MAGNESIUM OXIDES
ENERGY BEAM DEPOSITION
THIN FILMS
ION BEAMS
DIELECTRIC PROPERTIES
LOSSES
STRONTIUM COMPOUNDS