Accession Number : ADA290088

Title :   Analysis of the Ferroelectric Thin Films Deposited by Pulsed Laser Deposition on Oxide and Fluoride Substrates,

Corporate Author : ARMY RESEARCH LAB WATERTOWN MA MATERIALS DIRECTORATE

Personal Author(s) : Sengupta, S. ; Kosik, W. E. ; Demaree, J. D. ; Sengupta, L. C.

PDF Url : ADA290088

Report Date : DEC 1994

Pagination or Media Count : 18

Abstract : This work has been carried out as part of an ongoing investigation in which thin film ferroelectric phase shifters are being constructed, tested, and optimized. These phase shifters will be incorporated into multi-element phased array antennas where the beam steering material used was Ba(0.6)Sr(0.4)TiO3 (BSTO) and BSTO with 1 wt.% oxide additive. Thin films of BSTO have been deposited by pulsed laser deposition (PLD) onto various oxide and fluoride substrates. These include oxide substrates such as magnesium oxide (MgO), sapphire (Al2O3), lanthanum aluminate (LaAlO3), neodymium gallate (NdGaO3), and fluoride substrates such as rubidium manganese fluoride (RbMnF3). (jg)

Descriptors :   *THIN FILMS, *SUBSTRATES, *PULSED LASERS, *DEPOSITION, *OXIDES, *FLUORIDES, *FERROELECTRIC MATERIALS, *PHASE SHIFT CIRCUITS, THICKNESS, SPECTROSCOPY, INTERFACES, PHYSICAL PROPERTIES, COMPOSITE MATERIALS, ELECTROMAGNETIC PROPERTIES, ELECTRIC FIELDS, BACKSCATTERING, X RAYS, SAPPHIRE, DIELECTRIC PROPERTIES, ELECTRODES, NEODYMIUM, BEAM STEERING, ANTENNA ARRAYS, BARIUM, STRONTIUM, TITANATES, LANTHANUM, PHASED ARRAYS, MANGANESE, ALUMINATES, MAGNESIUM OXIDES, RUBIDIUM, GALLATES.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Lasers and Masers
      Laminates and Composite Materials

Distribution Statement : APPROVED FOR PUBLIC RELEASE