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First-principles study of the structural, elastic, electronic, optical, and vibrational properties of intermetallic Pd{sub 2}Ga

Abstract

The structural, elastic, electronic, optical, and vibrational properties of the orthorhombic Pd{sub 2}Ga compound are investigated using the norm-conserving pseudopotentials within the local density approximation in the frame of density functional theory. The calculated lattice parameters have been compared with the experimental values and found to be in good agreement with these results. The second-order elastic constants and the other relevant quantities, such as the Young's modulus, shear modulus, Poisson's ratio, anisotropy factor, sound velocity, and Debye temperature, have been calculated. It is shown that this compound is mechanically stable after analysing the calculated elastic constants. Furthermore, the real and imaginary parts of the dielectric function and the optical constants, such as the optical dielectric constant and the effective number of electrons per unit cell, are calculated and presented. The phonon dispersion curves are derived using the direct method. The present results demonstrate that this compound is dynamically stable. (condensed matter: electronic structure, electrical, magnetic, and optical properties)
Authors:
A, Yildirim; H, Koc; [1]  Deligoz E, E-mail: ahmedoyildirim@gmail.com [2] 
  1. Department of Physics, Siirt University, Siirt 56100 (Turkey)
  2. Department of Physics, Aksaray University, Aksaray 68100 (Turkey)
Publication Date:
Mar 15, 2012
Product Type:
Journal Article
Resource Relation:
Journal Name: Chinese Physics. B; Journal Volume: 21; Journal Issue: 3; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; APPROXIMATIONS; COMPARATIVE EVALUATIONS; DEBYE TEMPERATURE; DENSITY FUNCTIONAL METHOD; DIELECTRIC MATERIALS; ELECTRONIC STRUCTURE; GALLIUM; INTERMETALLIC COMPOUNDS; LATTICE PARAMETERS; ORTHORHOMBIC LATTICES; PALLADIUM; PERMITTIVITY; PHONONS; SHEAR PROPERTIES; SOUND WAVES; YOUNG MODULUS
OSTI ID:
22205630
Country of Origin:
China
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1674-1056; TRN: CN13J4753026542
Availability:
Available from http://dx.doi.org/10.1088/1674-1056/21/3/037101
Submitting Site:
INIS
Size:
[8 page(s)]
Announcement Date:
Mar 24, 2014

Citation Formats

A, Yildirim, H, Koc, and Deligoz E, E-mail: ahmedoyildirim@gmail.com. First-principles study of the structural, elastic, electronic, optical, and vibrational properties of intermetallic Pd{sub 2}Ga. China: N. p., 2012. Web. doi:10.1088/1674-1056/21/3/037101.
A, Yildirim, H, Koc, & Deligoz E, E-mail: ahmedoyildirim@gmail.com. First-principles study of the structural, elastic, electronic, optical, and vibrational properties of intermetallic Pd{sub 2}Ga. China. https://doi.org/10.1088/1674-1056/21/3/037101
A, Yildirim, H, Koc, and Deligoz E, E-mail: ahmedoyildirim@gmail.com. 2012. "First-principles study of the structural, elastic, electronic, optical, and vibrational properties of intermetallic Pd{sub 2}Ga." China. https://doi.org/10.1088/1674-1056/21/3/037101.
@misc{etde_22205630,
title = {First-principles study of the structural, elastic, electronic, optical, and vibrational properties of intermetallic Pd{sub 2}Ga}
author = {A, Yildirim, H, Koc, and Deligoz E, E-mail: ahmedoyildirim@gmail.com}
abstractNote = {The structural, elastic, electronic, optical, and vibrational properties of the orthorhombic Pd{sub 2}Ga compound are investigated using the norm-conserving pseudopotentials within the local density approximation in the frame of density functional theory. The calculated lattice parameters have been compared with the experimental values and found to be in good agreement with these results. The second-order elastic constants and the other relevant quantities, such as the Young's modulus, shear modulus, Poisson's ratio, anisotropy factor, sound velocity, and Debye temperature, have been calculated. It is shown that this compound is mechanically stable after analysing the calculated elastic constants. Furthermore, the real and imaginary parts of the dielectric function and the optical constants, such as the optical dielectric constant and the effective number of electrons per unit cell, are calculated and presented. The phonon dispersion curves are derived using the direct method. The present results demonstrate that this compound is dynamically stable. (condensed matter: electronic structure, electrical, magnetic, and optical properties)}
doi = {10.1088/1674-1056/21/3/037101}
journal = []
issue = {3}
volume = {21}
journal type = {AC}
place = {China}
year = {2012}
month = {Mar}
}