Corresponding Raman spectra for these two phases of CoFe_2O_4 showed a change in relative peak intensity of the vibrational mode at 695 cm ~(-1)(A_(1g)(1)) to 624 cm~(-1) (A_(1g)(2)). The relative peak intensity ratio, I_v between the A_(1g)(1) and A_(1g)(2) ...
Crystalline SiSe2 and a series of SixSe1-x clear yellow-orange glasses (0.33<x≤0.4) were synthesized and studied by Raman spectroscopy. Spectra of crystals were analyzed in terms of the known crystal structure of SiSe2 whereas for the glasses a new cross-linked chain-cluster model (CLCC)...
to translate the existing proof-of-concept applications into real clinical settings, covering from portable SERS detection to machine learning to discriminate the rich but complex SERS spectra. Further challenges will be briefly discussed in the conclusions. The unique nature and integrated sensing capabi...
Because of the outstanding ability of DFT for simulating Raman and SERS spectra and analyzing the adsorption behavior of molecules on the substrate, it is popular in SERS detection and has gradually become one of the indispensable theoretical analysis tools. 3 Determination of heavy metal ions 3.1 ...
The Raman spectra of these crystals are close to the standard spectrum of cobalt ferrite (CoFe 2 O 4). Comparing the Fe/Co ratios obtained by EDS to the corresponding Raman spectra, we have identified two main types of spinel crystals: one type richer in iron and another type richer in ...
Raman spectraSol-gelSpinel ferrite? 2022 Elsevier Ltd and Techna Group S.r.l.The structural and magnetic properties of sol-gel synthesized Gd doped (x = 0.00 to 0.15) CoFe2O4 nanoparticles (NPs) have been studied. The x-ray diffraction (XRD) and FTIR spectroscopy along with Raman spectra ...
The obtained CoFe2O4 samples have been studied using a variety of characterization techniques: X-ray diffraction (XRD), Raman spectroscopy, far infrared (FIR) reflectivity and attenuated total reflectance (ATR) in combination with Fourier-transform infrared (FTIR) spectroscopy in mid IR spectra. ...
The XRD and Raman spectra analyses indicated the presence of a cubic spinel structure. The findings suggest that as the Ag content increases, there is an increase in the lattice parameter values. The Raman spectra of cobalt ferrite exhibited incremental alterations with the rise in Ag substitution...
Tyagi, M, Kumari, M, Chatterjee, R, Sharma, P (2014) Raman scattering spectra, magnetic and ferroelectric properties of BiFeO3–CoFe2O4 nanocomposite thin films structure. Phys B 448: pp. 128-131M. Tyagi, et al., Raman scattering spectra, magnetic and ferroelectric properties of BiFeO3-CoFe...
The Raman spectra give the information about the vibrational modes in the sample. The Fourier transform infrared rays spectrum shows that the samples have a broad range of chemical interactions. The photoluminescence spectroscopy (PL) suggests strong luminescence in the visible range. PL spectroscopy ...