Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect
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2011
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my.unimap-104452011-01-09T07:54:04Z Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect F., Semari R., Khenata M., Rabah A., Bouhemadou S., Omran Ali H., Reshak D., Rached maalidph@yahoo.co.uk Elastic properties Electronic structure FP-APWlo Optical properties Pressure effect Spinel Link to publisher's homepage at http://www.elsevier.com/ The structural, elastic, electronic, and optical properties of cubic spinel MgIn2S4 and CdIn2S4 compounds have been calculated using a full relativistic version of the full-potential linearized-augmented plane wave with the mixed basis FP/APW+lo method. The exchange and correlation potential is treated by the generalized-gradient approximation (GGA). Moreover, the Engel–Vosko GGA formalism is also applied to optimize the corresponding potential for band structure calculations. The ground state properties, including the lattice constants, the internal parameter, the bulk modulus, and the pressure derivative of the bulk modulus are in reasonable agreement with the available data. Using the total energy-strain technique, we have determined the full set of first-order elastic constants Cij and their pressure dependence, which have not been calculated or measured yet. The shear modulus, Young’s modulus, and Poisson’s ratio are calculated for polycrystalline XIn2S4 aggregates. The Debye temperature is estimated from the average sound velocity. Electronic band structures show a direct band gap (Г–Г) for MgIn2S4 and an indirect band gap (K–Г) for CdIn2S4. The calculated band gaps with EVGGA show a significant improvement over the GGA. The optical constants, including the dielectric function ε(ω), the refractive index n(ω), the reflectivity R(ω), and the energy loss function L(ω) were calculated for radiation up to 30 eV. 2011-01-09T07:54:04Z 2011-01-09T07:54:04Z 2010-12 Article Journal of Solid State Chemistry, vol. 183(12), December 2010, pages 2818-2825 0022-4596 http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6WM2-513F948-1-N&_cdi=6922&_user=1659113&_pii=S0022459610004214&_origin=search&_coverDate=12%2F31%2F2010&_sk=998169987&view=c&wchp=dGLbVtz-zSkzS&md5=d4beac976adc1d841fdd773a263c4ad2&ie=/sdarticle.pdf http://hdl.handle.net/123456789/10445 en Elsevier Inc. |
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Elastic properties Electronic structure FP-APWlo Optical properties Pressure effect Spinel |
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Elastic properties Electronic structure FP-APWlo Optical properties Pressure effect Spinel F., Semari R., Khenata M., Rabah A., Bouhemadou S., Omran Ali H., Reshak D., Rached Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect |
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Link to publisher's homepage at http://www.elsevier.com/ |
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maalidph@yahoo.co.uk |
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maalidph@yahoo.co.uk F., Semari R., Khenata M., Rabah A., Bouhemadou S., Omran Ali H., Reshak D., Rached |
| format |
Article |
| author |
F., Semari R., Khenata M., Rabah A., Bouhemadou S., Omran Ali H., Reshak D., Rached |
| author_sort |
F., Semari |
| title |
Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect |
| title_short |
Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect |
| title_full |
Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect |
| title_fullStr |
Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect |
| title_full_unstemmed |
Full potential study of the elastic, electronic, and optical properties of spinels MgIn2S4 and CdIn2S4 under pressure effect |
| title_sort |
full potential study of the elastic, electronic, and optical properties of spinels mgin2s4 and cdin2s4 under pressure effect |
| publisher |
Elsevier Inc. |
| publishDate |
2011 |
| url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/10445 |
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