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We report systematic first principles density functional study on the electronic structure, elastic and optical properties of nitrogen based solid hydrogen storage materials LiNH$_2$, NaNH$_2$, KNH$_2$, and RbNH$_2$. The ground state…

Materials Science · Physics 2014-06-02 K. Ramesh Babu , G. Vaitheeswaran

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

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

The structural, thermoelectric, and optical properties of $[NH_3-(CH_2)_4-NH_3]CdCl_4$ were studied using Density Functional Theory (DFT) within the ABINIT code. The GGA-PBE functional, plane wave pseudopotentials, a kinetic energy cutoff…

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

The structural, electronic, elastic and optical properties of tetragonal (P4mm) phase of Pb0.5Sn0.5TiO3 (PSTO) and Pb0.5Sn0.5Ti0.5(Zr0.5)O3 (PSTZO) are examined by first-principles calculations based on the density functional theory (DFT)…

Materials Science · Physics 2021-03-30 S. G. Kuma , M. M. Woldemariam

Ammonium DiNitramide (ADN) is one of the most promising green energetic oxidizers for future rocket propellant formulations. In the present work, we report a detailed theoretical study on structural, elastic, and vibrational properties of…

Materials Science · Physics 2016-09-05 N. Yedukondalu , Vikas D. Ghule , G. Vaitheeswaran

The atomic and electronic structures of Pd3N, PdN and PdN2 were investigated using ab initio density-functional theory (DFT). We studied cohesive energy vs. volume equation of states (EOS) for a set of reported and hypothetical structures.…

Materials Science · Physics 2013-10-11 Mohammed S. H. Suleiman , Daniel P. Joubert

Based on ab initio density-functional-theory using generalized gradient approximation, we systematically study the optical and electronic properties of the insulating dense sodium phase (Na-hp4) reported recently [Ma \textit{et al.}, Nature…

Materials Science · Physics 2015-05-18 Dafang Li , Hanyu Liu , Bao-Tian Wang , Hongliang Shi , Shao-Ping Zhu , Jun Yan , Ping Zhang

We have performed ab-initio calculations using plane-wave ultraviolet pseudopotential technique based on the density-functional theory (DFT) to study the structural, mechanical, electronic, optical and thermodynamic properties of…

Materials Science · Physics 2017-09-26 Md. Atikur Rahman , Md. Zahidur Rahaman , Md. Abdur Razzaque Sarker

Structural stability and vibrational properties of KN$_3$ have been studied under pressure using the first principles calculations based on the density functional theory (DFT) as well as with semi empirical dispersion correction to the DFT…

Materials Science · Physics 2013-11-08 K. Ramesh Babu , G. Vaitheeswaran

We investigated the structural, elastic, electronic, vibrational, optical, thermodynamic and a number of thermophysical properties of W2N3 in this study using DFT based formalisms. The mechanical and dynamical stabilities have been…

Materials Science · Physics 2024-02-26 Istiak Ahmed , F. Parvin , R. S. Islam , S. H. Naqib

In this study, using the density functional theory, we have investigated the bulk physical properties like structural, electronic band structure, elastic properties, thermal properties, optical properties and bonding features of AlPO4…

Materials Science · Physics 2024-07-29 A. S. M. Muhasin Reza , Md. Asif Afzal , S. H. Naqib

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

The structural, electronic, optical and transport properties of X3NbY4(X= Cu, Ag, Au; Y=S, Se, Te) sulvanite chalcogenides materials have been investigated using the Full Potential Linear Augmented Plane wave (FP-LAPW) within the density…

Materials Science · Physics 2026-03-13 Sadeya Sabnam Emo , Md. Sharear Aman , Md. Abdur Rashid , Jaker Hossain

Present work provides extensive DFT study of TlReO4 using pseudopotential approach for understanding the structural and vibrational properties and full-potential linearized augmented plane wave method for electronic band structure and…

Materials Science · Physics 2019-06-18 S. Mondal , G. Vaitheeswaran , Daniel Errandonea

Using spectroscopic ellipsometry, we study the optical conductivity sigma(omega) of insulating LaSrMnO4 in the energy range of 0.75-5.8 eV from 15 to 330 K. The layered structure gives rise to a pronounced anisotropy. A multipeak structure…

Strongly Correlated Electrons · Physics 2008-01-31 A. Gössling , M. W. Haverkort , M. Benomar , H. Wu , D. Senff , T. Möller , M. Braden , J. A. Mydosh , M. Grüninger

The structural stability, electronic properties and NH$_3$ adsorption properties of pristine, Ti, Zr and F substituted $\alpha$-MoO$_3$ nanostructures are successfully studied using density functional theory with B3LYP/LanL2DZ basis set.…

Mesoscale and Nanoscale Physics · Physics 2017-06-23 V. Nagarajan , R. Chandiramouli

We have investigated the effect of hydrostatic pressure and temperature on phase stability of hydro-nitrogen solids using dispersion corrected Density Functional Theory calculations. From our total energy calculations, Ammonium Azide (AA)…

Materials Science · Physics 2015-11-24 N. Yedukondalu , G. Vaitheeswaran , P. Anees , M. C. Valsakumar

We report a detailed theoretical study of the structural, vibrational, and optical properties of solid nitromethane using first principles density functional calculations. The ground state properties were calculated using a plane wave…

Materials Science · Physics 2015-06-17 S. Appalakondaiah , G. Vaitheeswaran , S. Lebegue
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