First-principles structural, electronic, optical and bonding properties of scandium-based ternary indide system Sc5T2In4 (T = Ni, Pd, Pt) View Full Text


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Article Info

DATE

2020-10-27

AUTHORS

Sidra Shafiq, Altaf Hussain, Muhammad Nasir Rasul, Sardar Sikandar Hayat, Faisal Iqbal, Muhammad Amir Rafiq

ABSTRACT

The structural, electronic and optical properties of rare-earth, scandium-based compounds within the family of RE5-T2-In4 (T = Ni, Pd, Pt) intermetallics are calculated by using density functional theory-based orthogonalized linear combination of atomic orbitals method. The studied compounds crystallize in orthorhombic structure with space group Pbam (No. 55). The electronic properties exhibit conducting features of all three compounds. Charge transfer and crystal strength analysis were carried out by computing bond order and effective charge. Regarding optical properties the complex dielectric function, optical conductivity and electron energy loss function have been assessed. All the three compounds demonstrate optically anisotropic behaviour for energy values up to 7.0 eV and turned towards isotropic nature at higher energy (>7.0 eV). Optical conductivity spectra designate that the compounds are optically active for visible to UV light. Two major peaks are observed in energy loss spectra, at 13.2 and 32.6 eV, which correspond to plasmonic resonance points. The interatomic bonding characteristics between distinct pair of atoms within each compound have also been elaborated in comprehensive manner. More... »

PAGES

284

References to SciGraph publications

  • 2007-07-05. Rare Earth-Rich Indides RE5Pt2In4 (RE = Sc, Y, La–Nd, Sm, Gd–Tm, Lu) in MONATSHEFTE FÜR CHEMIE - CHEMICAL MONTHLY
  • 1964-11. Die Kristallstruktur von Mo2FeB2 in MONATSHEFTE FÜR CHEMIE - CHEMICAL MONTHLY
  • 2014-12-05. Quantum Mechanical Metric for Internal Cohesion in Cement Crystals in SCIENTIFIC REPORTS
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    http://scigraph.springernature.com/pub.10.1007/s12034-020-02251-y

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    http://dx.doi.org/10.1007/s12034-020-02251-y

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