The structural, mechanical, electronic, and optical properties of multiferroic LiCu2O2 under different pressures
Yükleniyor...
Dosyalar
Tarih
2024-12-18
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Science and Business Media LLC
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this work, the structural, mechanical, and electronic properties of LiCu2O2 compound under different pressures were studied using the density functional theory. The spin-polarized generalized-gradient approximation has been used for modelling the exchange-correlation effects. In particular, the electronic structure under zero pressure was analysed using both conventional GGA-PBE and meta-GGA (mBJLDA) functional. The structural optimization was performed by using VASP-code, and the lattice parameters and magnetic moments were calculated. Bulk modulus, shear modulus, Young’s modulus, Poisson’s ratio, anisotropy factors, sound velocities, and Debye temperature were obtained from the calculated elastic constants for LiCu2O2 compound. While the electronic band structures obtained from both functionals for spin up under zero pressure are semiconductor in nature, the electronic band structures obtained from PBE and mBJLDA functionals for spin down are narrow semiconductor and semiconductor, respectively. For the spin-up state, the Eg value decreases linearly after 5 GPa, while the Eg value increases linearly for the spin-down state. The real and imaginary parts of the dielectric function along the x, y, and z axes and the optical constants, such as the energy loss function, refractive index, reflectivity coefficient, and extinction coefficient are also calculated and presented.
Açıklama
Anahtar Kelimeler
Density functional theory, electronic structure, mechanical properties, optical properties
Kaynak
Bulletin of Materials Science
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
48
Sayı
1
Künye
Koc, H., Sİmsek, S., Mamedov, A. M., & Ozbay, E. (2025). The structural, mechanical, electronic, and optical properties of multiferroic LiCu2O2 under different pressures. Bulletin of Materials Science, 48(1), 1-10.
