Calculation of the Raman frequency shifts for the α phase of solid oxygen

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• 作者：Hamit Yurtseven^a ; ^{hamit@metu.edu.tr" class="auth_mail" title="E-mail the corresponding author} ; Ozlem Tari^b
• 关键词：Raman frequency shifts ; Volume ; Mode Gr&uuml ; neisen parameter ; α-phase ; O2
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：128
• 期：Complete
• 页码：113-120
• 全文大小：682 K

文摘

We calculate in this study the Raman frequencies of the two librons and one vibron at various pressures at constant temperatures of 10 K and also at the temperatures of 6 and 18 K by using the volume data from the literature through the mode Grüneisen parameter for the α phase of oxygen.

The Raman frequency shifts calculated for the pressure-induced librons and vibron, agree with the experimental frequency shifts in most cases, in particular at low pressures for ormulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0030402616311767&_mathId=si13.gif&_user=111111111&_pii=S0030402616311767&_rdoc=1&_issn=00304026&md5=6f47f43cecae885d85d0f9c70ba8d71d" title="Click to view the MathML source">α−O₂ontainer hidden">ode">ow="scroll">ow>αo>−o>O2ow>. This shows that the Raman frequency shifts can be calculated adequately from the volume by means of the mode Grüneisen parameter using the method given here for the ormulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0030402616311767&_mathId=si1.gif&_user=111111111&_pii=S0030402616311767&_rdoc=1&_issn=00304026&md5=404a2163c9d7afd7fb512d1585e97ab9" title="Click to view the MathML source">αontainer hidden">ode">ow="scroll">α-phase of oxygen or more generally for molecular solids.