TTF [Ni（dmit）2]2中电荷密度波的电子喇曼散射研究
Amplitude mode of charge density wave in TTF[Ni(dmit)2]2 observed by electronic Raman scattering
摘要：
我们用电子拉曼散射测量了多带导体TTF[Ni（dmit）2]2中电荷密度波的光学特征。在低能量下，在60 K以下出现一个峰.这个驼峰与能量约为9 meV的CDW的振幅模式相关联。拉曼光谱测量表明CDW的振幅模式是各向异性的，CDW可以与Ni（dmit）2链的带嵌套。
英文摘要：
We measured the optical signature of the charge density waves (CDWs) in the multiband conductor TTF[Ni(dmit)2]2 by electronic Raman scattering. At low energies, a hump develops below 60 K. This hump is associated to the amplitude mode of the CDW with an energy around 9 meV. Raman symmetry-resolved measurements show that the CDW amplitude mode is anisotropic and that the CDW can be associated to the band nesting of Ni(dmit)2 chains.
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