Abstract
The structural, elastic, electronic, and magnetic properties of cubic perovskite RAlO3 (R = Sm, Eu, Gd, Dy, Tb, Ho, Tm, Er, Yb) compounds have been calculated using a full-potential linearized augmented plane wave (FP-LAPW) method within the density functional theory. The exchange-correlation potential was treated with the generalized gradient approximation of Wu and Cohen (WC-GGA) to calculate the total energy. Moreover, the GGA + U−based potential was also applied for the electronic and magnetic properties. The calculated structural properties such as lattice parameter are consistent with the accessible data. The spin-polarized electronic band structure and the calculation of density of state show that DyAlO3, EuAlO3, SmAlo3, TmAlO3, HoAlO3, YbAlO3, and TbAlO3 compounds have a half-metallic nature, and only GdAlO3 and ErAlO3 have a semiconductor nature. The spin-polarized magnetic moment of these compounds reveals that they show a ferromagnetic nature.
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Acknowledgments
Asif Mahmood extends his appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project No. RGP-VPP-311.
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Usman, T., Murtaza, G., Luo, H. et al. GGA and GGA + U Study of Rare Earth-Based Perovskites in Cubic Phase. J Supercond Nov Magn 30, 1389–1396 (2017). https://doi.org/10.1007/s10948-016-3953-9
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DOI: https://doi.org/10.1007/s10948-016-3953-9