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A number of diverse bulk properties of the zincblende and wurtzite III-V nitrides AlN, GaN, and InN, are predicted from first principles within density functional theory using the plane-wave ultrasoft pseudopotential method, within both the…

Materials Science · Physics 2009-10-31 A. Zoroddu , F. Bernardini , P. Ruggerone , V. Fiorentini

The structural, elastic, and electronic properties of the very recently discovered ternary silicide superconductor, Li2IrSi3, have been calculated using ab-initio technique. We have carried out the plane-wave pseudopotential approach within…

Superconductivity · Physics 2015-05-12 M. A. Hadi , M. A. Alam , M. Roknuzzaman , M. T. Nasir , A. K. M. A. Islam , S. H. Naqib

We investigate the elastic properties of selected zincblende III-V semiconductors. Using hybrid functional density functional theory we calculate the second and third order elastic constants, and first and second-order internal strain…

Computational Physics · Physics 2018-12-12 Daniel S. P. Tanner , Miguel A. Caro , Stefan Schulz , Eoin P. O'Reilly

We study a newly predicted layered-ternary compound Ti4SiN3 in its {\alpha}- and {\beta}-phases. We calculate their mechanical, electronic and optical properties and then compare these with those of other compounds M4AX3 (M = V, Ti, Ta; A =…

Materials Science · Physics 2011-08-03 M. M. Hossain , M. S. Ali , A. K. M. A. Islam

The elastic, electronic and optical properties of MNNi3 (M= Zn, Sn and Cu) have been calculated using the plane-wave ultrasoft pseudopotential technique which is based on the first-principles density functional theory (DFT) with generalized…

Materials Science · Physics 2015-05-30 M. A. Helal , A. K. M. A. Islam

We report a detailed first principles study on the structural, elastic, vibrational and thermodynamic properties of layered structure energetic alkali metal azides KN$_3$ and RbN$_3$. All the calculations were carried out by means of plane…

Materials Science · Physics 2013-11-07 K. Ramesh Babu , G. Vaitheeswaran

We report accurate, calculated electronic, transport, and bulk properties of zinc blende gallium arsenide (GaAs). Our ab-initio, non-relativistic, self-consistent calculations employed a local density approximation (LDA) potential and the…

The structural, electronic, dielectric and vibrational properties of zinc-blende (ZB) InAs were studied within the framework of density functional theory (DFT) by employing local density approximation and norm-conserving pseudopotentials.…

Computational Physics · Physics 2021-02-03 Waqas Mahmood , Arfan Bukhtiar , Muhammad Haroon , Bing Dong

The electronic structure of AlN in wurtzite and zinc-blende phases is studied experimentally and theoretically. By using x-ray emission spectroscopy, the Al 3p, Al 3s and N 2p spectral densities are obtained. The corresponding local and…

Materials Science · Physics 2007-05-23 P. Jonnard , N. Capron , F. Semond , J. Massies , E. Martinez-Guerrero , H. Mariette

The structural and electronic properties of the wurtzite phase of the InAs and GaAs compounds are, for the first time, studied within the framework of Density Functional Theory (DFT). We used the full-potential linearized augmented plane…

Materials Science · Physics 2007-05-23 Zeila Zanolli , Ulf von Barth

We report density functional theory calculations on the crystal structure, elastic, lattice dynamics and electronic properties of iso-structural layered monoclinic alkali azides, LiN3 and NaN3. The effect of van der Waals interactions on…

Materials Science · Physics 2013-11-04 K. Ramesh Babu , G. Vaitheeswaran

We have measured the specific heat of zincblende ZnS for several isotopic compositions and over a broad temperature range (3 to 1100 K). We have compared these results with calculations based on ab initio electronic band structures,…

Materials Science · Physics 2015-05-14 M. Cardona , R. K. Kremer , R. Lauck , G. Siegle , A. Munoz , A. H. Romero , A. Schindler

We present theoretical studies for the third-order elastic constants $C_{ijk}$ in zinc-blende nitrides AlN, GaN, and InN. Our predictions for these compounds are based on detailed ab initio calculations of strain-energy and strain-stress…

Materials Science · Physics 2009-11-13 Michal Lopuszynski , Jacek A. Majewski

The structural, electronic and optical properties of nearly ferromagnetic compound HfZn2 have been studied using ab-initio technique. We have carried out the plane-wave pseudopotential approach within the framework of the first-principles…

Materials Science · Physics 2016-05-17 Md. Atikur Rahman , Md. Afjalur Rahman , Md. Zahidur Rahaman

In the present work, the atomic and the electronic structures of Au3N, AuN and AuN2 are investigated using first-principles density-functional theory (DFT). We studied cohesive energy vs. volume data for a wide range of possible structures…

Materials Science · Physics 2015-11-24 Mohammed S. H. Suleiman , Daniel P. Joubert

We have studied the electronic and magnetic structures of the ternary iron arsenides AFe$_2$As$_2$ (A = Ba, Ca, or Sr) using the first-principles density functional theory. The ground states of these compounds are in a collinear…

Materials Science · Physics 2010-05-21 Fengjie Ma , Zhong-Yi Lu , Tao Xiang

We have investigated the phonon, elastic and thermodynamic properties of L1$_{2}$ phase Al$_{3}$Ta by density functional theory approach combining with quasi-harmonic approximation model. The results of phonon band structure shows that…

Materials Science · Physics 2018-04-02 W. Leini , T. Zhang , Z. Wu , N. Wei

The structural, electronic, optical and vibrational properties of LiN$_3$ under high pressure have been studied using plane wave pseudopotentials within the generalized gradient approximation for the exchange and correlation functional. The…

Materials Science · Physics 2013-11-07 K. Ramesh Babu , Ch. Bheema Lingam , Surya P. Tewari , G. Vaitheeswaran

Using the density functional theory (DFT) with the generalized gradient approximation (GGA), the structural and electronic properties of wurtzite AlN, GaN, InN, and their related alloys, Al$_x$Ga$_{1-x}$N and In$_x$Ga$_{1-x}$N, were…

Materials Science · Physics 2008-11-04 E. Lopez-Apreza , J. Arriaga , D. Olguin

Using the local spin-density approximation (LSDA) and the (non self-consistent) GW approach, the (quasi-particle) band structure is calculated for MnTe in zinc-blende geometry. Different parameters characterizing the electronic structure…

Strongly Correlated Electrons · Physics 2015-05-13 A. Fleszar , M. Potthoff , W. Hanke
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