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Crystal structure, optical and magnetic properties of perovskite Gd(Mn0.7Ni0.3)O3 ceramic nanoparticles: An experimental and first-principles studies
(Elsevier Ltd, 2019)
The perovskite Gd(Mn0.7Ni0.3)O3 ceramic nanoparticles were synthesized by a facile sol-gel technique. The structure, electronic structure, surface morphology, optical and magnetic properties of GdMn0.7Ni0.3O3 nanoparticles ...
Flat bands and PT symmetry in quasi-one-dimensional lattices
(American Physical Society, 2015)
We examine the effect of adding PT-symmetric gain and loss terms to quasi-one-dimensional lattices (ribbons) that possess flat bands. We focus on three representative cases: the Lieb ribbon, the kagome ribbon, and the stub ...
Discrete embedded modes in the continuum in 2D lattices
(Elsevier, 2020)
We study the problem of constructing bulk and surface embedded modes (EMs) inside the quasi-continuum band of a square lattice, using a potential engineering approach a la Wigner and von Neumann. Building on previous results ...
Photonic flat band dynamics
(Taylor & Francis, 2021)
During the last decades, researchers of different scientific areas have investigated several systems and materials to suggest new ways of transporting and localizing light. These problems are probably main goals in any ...
Structure, electronic structure, optical and magnetic studies of double perovskite Gd2MnFeO6 nanoparticles: First principle and experimental studies
(Elsevier, 2020)
Multifunctional materials are greatly appealed in electrical, electronic and magnetic devices which are developed by several researchers for future device fabrications. Among such materials, the double perovskites with ...
Symmetry and localization properties of defect modes in magnonic superlattices
(American Physical Society, 2018-05)
Symmetry and localization properties of defect modes of a one-dimensional bicomponent magnonic superlattice are theoretically studied. The magnonic superlattice can be seen as a periodic array of nanostripes, where stripes ...
Observation of localized ground and excited orbitals in graphene photonic ribbons
(IOP Publishing Ltd, 2018)
We report on the experimental realization of a quasi-one-dimensional photonic graphene ribbon supporting four flat-bands (FBs). We study the dynamics of fundamental and dipolar modes, which are analogous to the s and p ...
Bismuth Doping of CdTe: The Effect of Spin–Orbit Coupling
(Wiley-VCH Verlag GmbH, 2020)
Using the Heyd, Scuseria, and Ernzerhof (HSE) hybrid functional, with the range-separation parameter modified to match the CdTe bandgap, the electronic structure and thermodynamic properties of bismuth-doped CdTe are ...
A comparison of semiempirical and ab initio methods for calculating the electronic structure of C60 and C70 fullerenes
(2003)
The aim of this work is to find a method suitable at least for obtaining the isolated molecule band structure approximated by a Gaussian broadening of the discrete eigenvalues, to apply it for a first scan of bigger and ...
Investigation of the inner structures around HD169142 with VLT/SPHERE
(Oxford University Press, 2018)
We present observations of the Herbig Ae star HD 169142 with the VLT/SPHERE instruments InfraRed Dual-band Imager and Spectrograph (IRDIS) (K1K2 and H2H3 bands) and the Integral Field Spectrograph (IFS) (Y, J and H bands). ...