拉曼光谱
拉曼散射
兴奋剂
电荷密度波
分子振动
材料科学
极化(电化学)
不稳定性
凝聚态物理
电荷密度
散射
分子物理学
化学
光学
物理
物理化学
超导电性
机械
量子力学
作者
Azat Sharafeev,Raman Sankar,A. Yu. Glamazda,Kwang‐Yong Choi,Robert Bohle,P. Lemmens,F. C. Chou
出处
期刊:Cornell University - arXiv
日期:2015-05-04
摘要
We report on the investigation of vibrational and electronic properties of the Pb doped dichalcogenide PbxTaSe2 using Raman scattering experiments. We observe a marked variation of the main vibrational modes with Pb concentration x. The concentration dependence of the vibrational modes resembles the dependence of the vibrational modes in TaSe2 on the number of crystallographic layers along the c axis direction [1]. The temperature and polarization dependence of Raman spectra of PbxTaSe2 revealed additional broad modes in the low frequency regime which are discussed in context of remnant charge density wave, induced disorder, or PbSe phase formed in the interface of Pb and TaSe2 layers.
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