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A. KAUSHAL1, D. KAUR2, N. KUMAR3,*
We report on the synthesis of BiFeO3 (BFO) and Bi0.9-ySmyLa0.1FeO3 (BSLFO) (y = 0, 0.02 and 0.1) thin films on quartz substrate using pulsed laser deposition (PLD) technique. The effect of doping Sm in Bi0.9La0.1FeO3 (BLFO) on structural, optical and magnetic properties has been systematically investigated. X-ray diffraction (XRD) measurement shows the rhombohedral structure for the deposited films with highly oriented (110) diffraction peak. Atomic force microscopy (AFM) of the films reveals the decrease in grain size with corresponding increase in Sm composition. Magnetic studies shows the ferromagnetism with Sm doping in BLFO with saturation magnetization 17.5 emu/cm3 and coercivity 121 Oe in case of Bi0.9-ySmyLa0.1FeO3 (y = 0.1) thin film at room temperature. However, antiferromagnetic behavior has been found in case of BFO. The M-T curve shows a large enhancement in magnetism of BLFO thin films by the addition of Sm. Optical measurement reveals the decrease in refractive index with Sm doping. Moreover, a red sift in band gap calculation has been found with increase in Sm doping in BLFO which provide a reference for preliminary research to infrared detectors and optoelectronic devices..
Bi0.9-ySmyLa0.1FeO3, Thin films, Optical band gap, AFM, PLD technique.
A. KAUSHAL, D. KAUR, N. KUMAR, Structural, optical and magnetic properties of Bi0.9-ySmyLa0.1FeO3 thin films deposited by pulsed laser deposition technique, Optoelectronics and Advanced Materials - Rapid Communications, 5, 5, May 2011, pp.545-550 (2011).
Submitted at: March 29, 2011
Accepted at: May 31, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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