摘要
We have studied the lattice vibrations,optical and mechanical characteristics of the zinc-blende aluminum phosphide(Al P) compound.Investigations have been done into the effect of temperature on refractive index,optical dielectric constant,static dielectric constant,longitudinal and transversal sound velocities,reflectivity,susceptibility,phonon frequencies,micro-hardness,ionicity,and transverse effective charge.Al P is a wide-indirect band gap semiconductor and has a wide range of uses in high-performance optoelectronic devices,such as the manufacturing of infrared photo-detectors and light-emitting diodes.It’s important to know the physical properties of semiconductor materials,like the Al P compound,to develop new technologies and devices.The calculations were carried out using the empirical pseudo-potential method(EPM).Comparative analysis with the existing experiment and other theoretical calculations reveals a satisfactory level of agreement.
