TY - JOUR
T1 - Change of damping for long-chain molecules during solidification and melting in scattering samples studied by Raman spectroscopy
AU - Abedin, Kazi Monowar
AU - Shikata, Jun Ichi
AU - Miyamoto, Katsuhiko
AU - Ito, Hiromasa
PY - 2008/10
Y1 - 2008/10
N2 - We studied the solidification and melting of certain complex scattering substances by laser Raman spectroscopy. We used a modified laser Raman system to study the spectrum of certain long-chain organic substances (paraffin and candlewax) during solidification and melting, and found that there is a significant and discontinuous change in linewidth (by 4-5 times) during these processes. By measuring the linewidth of a certain line during solidification, we show that at a microscopic level, there is a large change in the immediate microscopic environment and damping of the molecular motions. This shows that Raman spectroscopy can be used as a sensitive probe of the change in the immediate environment of the molecular motions in these systems.
AB - We studied the solidification and melting of certain complex scattering substances by laser Raman spectroscopy. We used a modified laser Raman system to study the spectrum of certain long-chain organic substances (paraffin and candlewax) during solidification and melting, and found that there is a significant and discontinuous change in linewidth (by 4-5 times) during these processes. By measuring the linewidth of a certain line during solidification, we show that at a microscopic level, there is a large change in the immediate microscopic environment and damping of the molecular motions. This shows that Raman spectroscopy can be used as a sensitive probe of the change in the immediate environment of the molecular motions in these systems.
KW - Linewidth
KW - Melting
KW - Molecular environment
KW - Raman spectroscopy
KW - Solidification
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U2 - 10.1143/JJAP.47.7936
DO - 10.1143/JJAP.47.7936
M3 - Article
AN - SCOPUS:62249128028
SN - 0021-4922
VL - 47
SP - 7936
EP - 7940
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 10 PART 1
ER -