Header menu link for other important links
X
Dielectric resonance and magnetic properties of Fe-3 doped BaSnO 3 thin films grown by pulsed laser deposition
K. Balamurugan, E. Senthil Kumar, B. Ramachandran, S. Venkatesh, , ,
Published in
2012
Volume: 111
   
Issue: 7
Abstract
Fe-3 doped BaSnO 3 thin films of good crystalline quality with lattice constant a 4.053 Å were grown on (2 0 0) n-type Si substrates by pulsed laser deposition. Micro Raman spectra of the thin films showed the presence of strain-induced Raman modes with reference to that of the bulk polycrystalline Fe-3 doped BaSnO 3. The films exhibited dielectric resonance in the frequency range 20 - 60 MHz and it is explained qualitatively based on the phenomenon of electromechanical piezoelectric resonance. The measured values of the resonant frequency and the surface resistivity showed a strong dependence on the thickness and the crystalline-character of the thin films. Magnetic measurements were performed selectively for the two films having (2 0 0) preferred orientation. It was found that both of them possess ferromagnetic ordering at 300 K and 1.8 K. At 300 K, the inherent diamagnetism of the undoped BaSnO 3 was found to be dominating for higher applied magnetic field. © 2012 American Institute of Physics.
About the journal
JournalJournal of Applied Physics
ISSN00218979
Open AccessNo
Concepts (20)
  •  related image
    Applied magnetic fields
  •  related image
    Crystalline quality
  •  related image
    DIELECTRIC RESONANCES
  •  related image
    Ferromagnetic orderings
  •  related image
    Frequency ranges
  •  related image
    MICRO-RAMAN SPECTRA
  •  related image
    PIEZOELECTRIC RESONANCE
  •  related image
    Polycrystalline
  •  related image
    Preferred orientations
  •  related image
    RAMAN MODES
  •  related image
    Si substrates
  •  related image
    SURFACE RESISTIVITY
  •  related image
    Crystalline materials
  •  related image
    Diamagnetism
  •  related image
    Dielectric resonators
  •  related image
    Magnetic fields
  •  related image
    Magnetic properties
  •  related image
    Natural frequencies
  •  related image
    Pulsed laser deposition
  •  related image
    Thin films