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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
S. Kumar, R. Laha, M. Kar 
Corresponding Authors:
R. Laha 
DOI #:
https://doi.org/10.1016/j.physb.2019.411833 
Title:
Raman Characterization of polycrystalline barium hexaferrite nanoparticles: SERS of nanoparticles in powder form 
Journal:
Physica B: Condensed Matter 
Year:
2020 
Volume:
579 
Page:
411833 
Keywords:
Barium hexaferrite, nanoparticles, SERS, XRD, FE-SEM, Raman spectroscopy 
Abstract:
Raman Characterization of Materials in powder form has always remained challenging because of low signal to noise ratio. We, herein, propose a method to make use of Surface Enhanced Raman Scattering (SERS) technique to improve the usefulness of Raman study of powder samples containing particles of sub wavelength size. As a case study, we have successfully applied the method to barium hexaferrite (BHF) synthesized by the modified citrate sol-gel method. The crystal structure and surface morphology of the prepared BHF powder were char-acterized by X-ray diffraction (XRD) and scanning electron microscopy. As many as 19 Raman peaks in a single spectrum with unpolarized laser were observed in the present work, against the commonly observed (in liter-ature) 10–12 peaks for BHF. This report, as it is believed, will enable the research community to probe further into the distortions in crystal structure through Raman studies 
Entered by:
Venkata Dantham on 2020-08-02 
 
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