AN INVESTIGATION OF ENERGY BAND STRUCTURE AND ELECTRONIC PROPERTIES OF LEAD SULFIDE AND LEAD SELENIDE.
Materials Theory Group and Energy Conversion and Semiconductor Lab. technical repts.,
MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF ELECTRICAL ENGINEERING
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The Augmented Plane Wave Method of energy band calculation was used to calculate the non-relativistic band structure of lead sulfide and lead selenide. Spin-orbit interaction and mass-velocity and Darwin corrections were then applied as perturbation to these results to obtain the so-called relativistic band structure of these materials. A perturbation was carried out on the conduction and valence band edges, at point L on the surface of the Brillouin Zone, to determine the nature of the constant energy surfaces and the effective masses and g-factors for the conduction and valence bands. The non-parabolic character of the band edge has been studied. The effect of the strain on the electronic properties of these materials has been studied through the calculation of their deformation potential constants. A comparison is made between the calculated results for the lead salt family with the experimental data, and various deductions are maderegarding their properties. Author
- Lasers and Masers
- Solid State Physics