Optical Properties of the LaNi_4.5M_0.5 (M=Al, Mn) Intermetallic Alloys

Abstract:

The aim of this study is to determine the optical parameters of the ternary alloys LaNi_4.5M_0.5 (M=Al, Mn) by using first-principles calculations. Through the computer simulation, we have successfully obtained the absorption coefficient, optical conductivity and dielectric function of these alloys. These alloys are transparent for the electromagnetic waves with frequencies of 12eV~15eV. The calculated dielectric constants are 188.3 and 257.6 for LaNi_4.5Al_0.5 and LaNi_4.5Mn_0.5, respectively. Our result is compared with the previous study and a good agreement is found.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 491-494
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.491
• Online since: June 2013
• Authors: Dong Chen, Chao Xu
• Keywords: Absorption, Alloy, LaNi₄₅M₀₅ (M=Al Mn), Optical Conductivity

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