Temperature dependent phonon Raman scattering of highly a-axis oriented CoFe2O4 inverse spinel ferromagnetic films grown by pulsed laser deposition

2012 ◽  
Vol 100 (7) ◽  
pp. 071905 ◽  
Keyword(s):  
Raman Scattering ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Inverse Spinel ◽  
Temperature Dependent ◽  
Ferromagnetic Films

scholarly journals Temperature dependent self-compensation in Al- and Ga-doped Mg0.05 Zn0.95O thin films grown by pulsed laser deposition

2016 ◽  
Vol 120 (20) ◽  
pp. 205703 ◽  
Author(s):  
Abdurashid Mavlonov ◽  
Steffen Richter ◽  
Holger von Wenckstern ◽  
Rüdiger Schmidt-Grund ◽  
Michael Lorenz ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Temperature Dependent

Magnetic and Raman scattering studies of Co-doped ZnO thin films grown by pulsed laser deposition

2013 ◽  
Vol 115 (3) ◽  
pp. 843-849 ◽  
Author(s):  
Arun Aravind ◽  
K. Hasna ◽  
M. K. Jayaraj ◽  
Mukesh Kumar ◽  
Ramesh Chandra
Keyword(s):  
Thin Films ◽  
Raman Scattering ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Zno Thin Films ◽  
Doped Zno ◽  
Co Doped

Temperature Dependent Micro-Raman Scattering of Sr0.35Ba0.65TiO3 Film Grown by Pulsed Laser Deposition

1995 ◽  
Vol 401 ◽  
Author(s):  
Sampriti Sen ◽  
E. Ching-Prado ◽  
A. Reynés-Figueroa ◽  
R. S. Katiyar ◽  
J. S. Horwitz ◽  
...  
Keyword(s):  
Single Crystal ◽  
Pulsed Laser Deposition ◽  
Ceramic Material ◽  
Normal Modes ◽  
Pulsed Laser ◽  
Rhombohedral Phase ◽  
Laser Deposition ◽  
X Ray Diffraction ◽  
Temperature Dependent ◽  
Ft Ir

AbstractA film of Sr0.35Ba0.65TiO3 (SBT) has been grown in situ by pulsed laser deposition on (001) LaAlO3 single crystal. From X-ray diffraction studies the sample is found to be in single phase and well oriented. Raman spectrum of the SBT film shows bands around 178, 219, 296, 513, 571 and 741 cm”. The spectrum is similar to that found in SBT ceramic material, but the frequencies of the phonons are shifted. This can be explained if the film is under stress due to the presence of defects. The bands at 296 and 741cm−1 correspond to the B1 and A1(LO) normal modes of the BaTiO3 (BT) system, and they are representative of the BT tetragonal phase, which at first glance appears to contradict earlier structural symmetry assignment for SBT(x=0.35) film at room temperature. Micro-Raman measurements from different regions of the film indicate that the SBT film is homogeneous. The bands at 296 and 741 cm−1 are broader in comparison to those in BT single crystal and SBT ceramic material. Temperature dependent halfwidths of these modes suggest strong contribution of defects. Temperature dependent results are discussed in terms of anharmonic contributions involving three and four phonon processes as well as defects. Also, the orthorhombic and rhombohedral phase transitions are discussed. Finally, SEM/EDAX and FT-IR techniques have been used for the structural characterization.

Sign in / Sign up

Export Citation Format

Share Document