Optical properties of the intermetallic compounds AuAl2, AuGa2 and AuIn2
Optical properties of the intermetallic compounds AuAl2, AuGa2 and AuIn2
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金属间化合物 AuAl2、AuGa2 和 AuIn2 的光学性质
DOI：
10.1080/14786436708229256
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发表时间：
1967
影响因子：
1.6
通讯作者：
J. Jan
中科院分区：
文献类型：
--
作者：
S. Vishnubhatla;J. Jan
摘要测量了AuAl2、AuGa2和AuIn2(萤石结构)在0.5-10.3 eV范围内的反射率。用Kramers-Kronig关系计算了其它光学常数。结果可以用带内跃迁和带间跃迁来定性地解释，这些跃迁分别位于2·2、2·0和1·7 eV处。主等离子体共振分别出现在7·0、7·8和7·5 eV处。低能行为表明存在几个传导电子带，这与费米表面的研究相一致。
Abstract The reflectance of AuAl2, AuGa2 and AuIn2 (fluorite structure) has been measured between 0·5 and 10·3 ev. The other optical constants have been calculated by means of Kramers-Kronig relations. The results can be explained qualitatively in terms of intraband transitions, and interband transitions setting in at 2·2, 2·0 and 1·7 ev respectively. A main plasma resonance was found at 7·0, 7·8 and 7·5 ev respectively. The low energy behaviour suggests the presence of several bands of conduction electrons, in agreement with Fermi surface studies.