Polarized reflection spectra of a new organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl0.5Br0.5
Polarized reflection spectra of a new organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Cl0.5Br0.5
复制标题
新型有机超导体κ-(BEDT-TTF)2Cu[N(CN)2]Cl0.5Br0.5的偏振反射光谱
DOI：
--
复制
发表时间：
1993
影响因子：
0.6
通讯作者：
A. Tybulewicz
中科院分区：
文献类型：
--
作者：
R. Vlasova;O. Drozdova;V. Semkin;N. Kushch;E. Yagubskii;A. Tybulewicz
本文研究了一种以BEDT-TTF为给体分子的新型有机半导体单晶的偏振反射光谱R（ω）。（BEDT-TTF）2 Cu[N（CN）2 ]Cl 0.5 Br 0.5（Tc = 11.3 K），在光谱范围600-5500和9000-40000 cm-1中，在光波的电矢量E平行的偏振中（E）或垂直于（E）BEDT-TTF分子的层。在这种晶体中的导电电子系统的准二维性质的光学证明。研究还表明，在E_∞极化中观察到的弱最大值可能是BEDT-TTF分子相邻层之间电荷转移的结果
The polarized reflection spectra R (ω) of a single crystal of a new organic semiconductor based on the BEDT-TTF donor molecule, κ-(BEDT-TTF) 2 Cu[N(CN) 2 ]Cl 0.5 Br 0.5 (T c = 11.3 K), are determined in the spectral ranges 600-5500 and 9000-40000 cm −1 in the polarizations with the electric vector of the optical wave E parallel (E∥) or perpendicular (E⊥) to the layers of the BEDT-TTF molecules. An optical proof of the quasi-two-dimensional nature of the conducting electron system in such a crystal is obtained. It is also shown that a weak maximum observed in the E⊥ polarization may be a consequence of charge transfer between the adjacent layers of the BEDT-TTF molecules