Please use this identifier to cite or link to this item: https://doi.org/10.1088/0953-8984/13/22/322
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dc.titleThe structural and electronic properties of (AlN)x(C2)1-x and (AlN)x(BN)1-x alloys
dc.contributor.authorZheng, J.-C.
dc.contributor.authorWang, H.-Q.
dc.contributor.authorHuan, C.H.A.
dc.contributor.authorWee, A.T.S.
dc.date.accessioned2014-10-16T09:45:43Z
dc.date.available2014-10-16T09:45:43Z
dc.date.issued2001-06-04
dc.identifier.citationZheng, J.-C., Wang, H.-Q., Huan, C.H.A., Wee, A.T.S. (2001-06-04). The structural and electronic properties of (AlN)x(C2)1-x and (AlN)x(BN)1-x alloys. Journal of Physics Condensed Matter 13 (22) : 5295-5311. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/13/22/322
dc.identifier.issn09538984
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/98319
dc.description.abstractThe ground-state properties of (III-V)-(IV2) type alloy (AlN)x(C2)1-x and (III-V)-(III-V) type alloy AlxB1-xN have been studied by self-consistent calculations. The calculated results show that the solid solution between cubic AlN and C (diamond) and that between AlN and BN are both nonideal, and the nonideality of AlN-C2 solid solution is larger than that of AlN-BN. The bulk modulus of (AlN)x(C2)1-x (x = 0.25, 0.5, 0.75) is less than that of AlxB1-xN (x = 0.25, 0.5, 0.75), although the bulk modulus of diamond is larger than BN. The large positive formation energies of alloys (AlN)x(C2)1-x and (AlN)x(BN)1-x indicate that these solid solutions are both metastable. Band structures of bulk diamond, cubic BN and AlN show that they are all indirect wide band gap structures, where the conduction band minima are situated at the Δ k-point for diamond and the X k-point for BN and AlN. (III-V)-(IV2) type AlN-diamond mixed crystals and alloys exhibit an anomalously large band gap bowing while (IIIA-V)-(IIIB-V) type AlN-BN systems show slightly bowing. The band line-ups of (AlN)x(C2)1-x/(AlN)x (BN)1-x show that these alloy heterojunctions will change from type-II heterojunction to type-I heterojunction.
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentPHYSICS
dc.description.doi10.1088/0953-8984/13/22/322
dc.description.sourcetitleJournal of Physics Condensed Matter
dc.description.volume13
dc.description.issue22
dc.description.page5295-5311
dc.description.codenJCOME
dc.identifier.isiut000169305400034
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