Raman spectra of proton order of thin ice Ih film. (4th March 2015)

• Record Type: Journal Article
• Authors: Men, Zhiwei; Fang, Wenhui; Wang, Shenghan; Li, Zhanlong; Sun, Chenglin; Wang, Xiaojun
• Is Part Of: Journal of Raman spectroscopy. Volume 46:Number 4(2015:Apr.)
• Page Start: 388
• Page End: 391
• Publication Date: 2015-03-04
• Subjects: Raman spectroscopy -- Periodicals; 535.846
• DOI: 10.1002/jrs.4666
• Languages: English
• ISSNs: 0377-0486

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>The polarized Raman spectra of the upper part of a thin ice I<italic>h</italic> film were obtained in the range of 150 cm⁻¹ to 3800 cm⁻¹. The spectra showed clear polarization dependence; several new peaks were also observed. The longitudinaloptic–tranverseoptic (LO–TO) splitting of the mode near 220 cm⁻¹ in the translational vibration region was experimentally confirmed at 133 K. The Fermi resonance between the bending overtone (around 3270 cm⁻¹) and symmetry stretching fundamental (around 3350 cm⁻¹) in the stretching vibration region appeared at nearly the same temperature. Results showed that ice XI (i.e. proton‐ordered phase of ice I<italic>h</italic>) slowly formed in the upper part of a thin ice I<italic>h</italic> film without KOH as the temperature gradually decreased below 133 K. Copyright © 2015 John Wiley &amp; Sons, Ltd.</p> </abstract>