Optical properties of the correlated two-dimensional 2H-TaSe2 system

被引：0
|
作者：
Vescoli, V. [1 ]
Degiorgi, L. [1 ]
Berger, H. [2 ]
Forro, L. [2 ]
机构：
[1] Lab. fur Festkorperphysik ETH Zurich, CH-8093 Zürich, Switzerland
[2] Departement de Physique, EPF Lausanne, CH-1015 Lausanne, Switzerland
来源：
Synthetic Metals | 1999年 / 103卷 / 1 -3 pt 3期
关键词：
Electrodynamics - Electron transitions - Optical properties - Optical variables measurement - Order disorder transitions - Reflection - Spectroscopy - Thermal effects;
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学科分类号：
摘要：
We discuss the optical response of the two-dimensional (2D) dichalcogenide 2H-TaSe2. Our findings suggest a dynamics of the charge excitation spectrum dominated by two relevant features: a Drude contribution, which narrows with decreasing temperature, and a broad pseudogap-like feature in the mid-infrared range, which is present at all temperatures below 300 K.
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页码：2655 / 2657
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