Structural and electronic properties of GaN x As 1-x alloys
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Springer-Verlag.
2013
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my.unimap-241902014-06-11T10:33:10Z Structural and electronic properties of GaN x As 1-x alloys Baaziz, H. Charifi, Z. Ali Hussain, Reshak, Prof. Dr. Hamad, Bothina A. Yarub, Al-Douri charifizoulikha@gmail.com alijaary@unimap.edu.my yarub@unimap.edu.my Band structure calculation Electron charge density Exchange and correlation Electronic band structure Full potential linearized augmented plane wave method Generalized gradient approximations Partial density of state Link to publisher's homepage at http://www.springer.com/ The structural and electronic properties of cubic GaN x As 1-x with N-concentration varying between 0.0 and 1.0 with step of 0.25 were investigated using the full potential-linearized augmented plane wave (FP-LAPW) method. We have used the local density approximation (LDA) and the generalized gradient approximation (GGA) for the exchange and correlation potential. In addition the Engel-Vosko generalized gradient approximation (EVGGA) was used for the band-structure calculations. The structural properties of the binary and ternary alloys were investigated. The electronic band structure, total and partial density of states as well as the electron charge density were determined for both the binary and their related ternary alloys. The energy gap of the alloys decreases when we move from x=0.0 to 0.25; then it increases by a factor of about 1.8 when we move from 0.25 to 0.5, 0.75 and 1.0 using EVGGA. For both LDA and GGA moving from x=0.0 to 0.25 causes the band gap to close, showing the metallic nature of the GaN 0.25As 0.75 alloy. When the composition of N moves through x=0.25, 0.5, 0.75 and 1, the band gap increases. 2013-04-01T02:46:25Z 2013-04-01T02:46:25Z 2012-03 Article Applied Physics A: Materials Science and Processing, vol. 106 (3), 2012, pages 687-696 0947-8396 http://link.springer.com/article/10.1007%2Fs00339-011-6666-8 http://hdl.handle.net/123456789/24190 en Springer-Verlag. |
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| language |
English |
| topic |
Band structure calculation Electron charge density Exchange and correlation Electronic band structure Full potential linearized augmented plane wave method Generalized gradient approximations Partial density of state |
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Band structure calculation Electron charge density Exchange and correlation Electronic band structure Full potential linearized augmented plane wave method Generalized gradient approximations Partial density of state Baaziz, H. Charifi, Z. Ali Hussain, Reshak, Prof. Dr. Hamad, Bothina A. Yarub, Al-Douri Structural and electronic properties of GaN x As 1-x alloys |
| description |
Link to publisher's homepage at http://www.springer.com/ |
| author2 |
charifizoulikha@gmail.com |
| author_facet |
charifizoulikha@gmail.com Baaziz, H. Charifi, Z. Ali Hussain, Reshak, Prof. Dr. Hamad, Bothina A. Yarub, Al-Douri |
| format |
Article |
| author |
Baaziz, H. Charifi, Z. Ali Hussain, Reshak, Prof. Dr. Hamad, Bothina A. Yarub, Al-Douri |
| author_sort |
Baaziz, H. |
| title |
Structural and electronic properties of GaN x As 1-x alloys |
| title_short |
Structural and electronic properties of GaN x As 1-x alloys |
| title_full |
Structural and electronic properties of GaN x As 1-x alloys |
| title_fullStr |
Structural and electronic properties of GaN x As 1-x alloys |
| title_full_unstemmed |
Structural and electronic properties of GaN x As 1-x alloys |
| title_sort |
structural and electronic properties of gan x as 1-x alloys |
| publisher |
Springer-Verlag. |
| publishDate |
2013 |
| url |
http://dspace.unimap.edu.my/xmlui/handle/123456789/24190 |
| _version_ |
1643794264306483200 |
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13.222552 |