• DocumentCode
    1327096
  • Title

    High Tunable {\\rm Ba}_{0.05}{\\rm Sr}_{0.95} {\\rm TiO} _{3} Thin Films for Microwave Applications at Cryogenic Temperature

  • Author

    Li, Na ; Wang, Xu ; Xia, Fengjin ; Wang, Jia ; Xu, Yunhui ; Sun, Liang ; Zhu, Beiyi ; Zhu, Xiaohong ; He, Yusheng

  • Author_Institution
    Nat. Lab. for Supercond., Beijing Nat. Lab. for Condensed Matter Phys., Beijing, China
  • Volume
    22
  • Issue
    11
  • fYear
    2012
  • Firstpage
    583
  • Lastpage
    585
  • Abstract
    La0.67Sr0.33MnO3/Ba0.05Sr0.95TiO3 (LSMO/BST) heterostructure thin film was grown on single crystal MgO substrate by pulsed laser deposition. The phase structure and dielectric properties of the film were investigated. The results show that the permittivity of the BST thin film decreased from 1170 to 350 (70% tuning) with the bias voltage increasing from 0 to 80 V at 63 K. The effective loss tangent of the BST thin film is in the range of 0.009-0.017.
  • Keywords
    barium compounds; cryogenics; dielectric properties; lanthanum compounds; magnesium compounds; manganese compounds; pulsed laser deposition; strontium compounds; thin films; titanium compounds; La0.67Sr0.33MnO3-Ba0.05Sr0.95TiO3; MgO; bias voltage; cryogenic temperature; dielectric properties; heterostructure thin film; microwave applications; phase structure; pulsed laser deposition; single crystal substrate; temperature 63 K; voltage 0 V to 80 V; Cryogenics; Dielectric losses; Frequency measurement; Microwave theory and techniques; Permittivity; Varactors; ${rm Ba}_{0.05}{rm Sr}_{0.95} {rm TiO} _{3}$ (BST) thin film; ${rm La}_{0.67}{rm Sr}_{0.33} {rm MnO} _{3}$ (LSMO) thin film; varactor;
  • fLanguage
    English
  • Journal_Title
    Microwave and Wireless Components Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1531-1309
  • Type

    jour

  • DOI
    10.1109/LMWC.2012.2224100
  • Filename
    6339019
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1327096