Results 71 to 80 of about 307,616 (251)
Applied SciencesPortable Raman spectrometers may offer advantages for clinical medical diagnostics over laboratory instruments by allowing for quick measurements in the field and provision of data suitable for screening analyses.
Alla Synytsya +5 more
doaj +1 more source
Raman Spectra of the Mercaptans [PDF]
Nature, 1930 AN investigation by me of the Raman effect in a series of mercaptans has yielded some noteworthy results. As is well known, the mercaptans are chemically analogous to the alcohols, the SH group in them replacing the OH group characteristic of the alcohols.
openaire +2 more sources
Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory
, 2002 In this paper, we investigate the low frequency Raman spectra of multi-wall carbon nanotubes (MWNT) prepared by the electric arc method. Low frequency Raman modes are unambiguously identified on purified samples thanks to the small internal diameter of ...
C. Godon +19 more
core +1 more source
Effect of impurities on the Raman scattering of 6H-SiC crystals
Materials Research, 2012 Raman spectroscopy was applied to different-impurities-doped 6H-SiC crystals. It had been found that the first-order Raman spectra of N-, Al- and B-doped 6H-SiC were shifted to higher frequency when comparing with undoped samples.
Shenghuang Lin +3 more
doaj
Distinct magneto-Raman signatures of spin-flip phase transitions in CrI3
Nature Communications, 2020 Thin samples CrI3 exhibit a phase transition under an applied magnetic field from layered antiferromagnetism to ferromagnetism. Here the authors observe an associated abrupt change in the magneto-Raman spectra, illustrating the sensitivity of Raman ...
Amber McCreary +18 more
doaj +1 more source
High-pressure Raman study of L-alanine crystal
, 2000 Pressure-dependent Raman scattering studies in the range 0.0 -- 32 kbar were carried out in L-alanine in order to investigate its external mode phonon spectra in relation to the phase transitions in the crystal.
A.J.D. Moreno +21 more
core +2 more sources
Multi-phonon Raman scattering in semiconductor nanocrystals: importance of non-adiabatic transitions
, 2001 Multi-phonon Raman scattering in semiconductor nanocrystals is treated taking into account both adiabatic and non-adiabatic phonon-assisted optical transitions.
A. Baldereschi +55 more
core +2 more sources
Oligorylene nanographenes and x-shape multiradicaloid molecules: structural insights from Raman spectroscopy [PDF]
, 2018 Raman spectroscopy has been the technique of choice for the structural study of carbonaceous materials, including graphitic substrates, carbon nanotubes, fullerenes, conducting polymers and graphene.1 In the material science and organic chemistry ...
Casado-Cordon, Juan
core
Resonance Raman Scattering in TlGaSe2 Crystals
Advances in Condensed Matter Physics, 2017 The resonance Raman scattering for geometries Y(YX)Z and Y(ZX)Z at temperature 10 K and infrared reflection spectra in E∥a and E∥b polarizations at 300 K were investigated.
N. N. Syrbu +3 more
doaj +1 more source
Micro-Raman Spectroscopy and Univariate Analysis for Monitoring Disease Follow-Up
Sensors, 2011 Micro-Raman spectroscopy is a very promising tool for medical applications, thanks to its sensitivity to subtle changes in the chemical and structural characteristics of biological specimens.
Vito Capozzi +4 more
doaj +1 more source