The study investigates the properties of double perovskites Cs 2 AgBiBr 6 and Cs 2 AgBiI 6,
focusing on their structural, mechanical, dynamic, thermodynamic, and optic properties …

The ab initio calculation of optical spectra of sheet crystals usually arranges them in a three-
dimensional superlattice with a sufficiently large interlayer distance. We show how the …

Recent high resolution multiphoton photoemission studies of low index Ag surfaces have
revealed spectral features whose energetics was controlled by multiple quanta of plasmon …

Abstract This research employed Density Functional Theory (DFT) calculations, utilizing both
GGA-PBEsol and HSE06 approximations, to comprehensively investigate the impact of …

Converting transverse photons into longitudinal two-dimensional plasmon-–polaritons (2D-
PP) and vice versa presents a significant challenge within the fields of photonics and …

Charge-order states of broken symmetry, such as charge density wave (CDW), are able to
induce exceptional physical properties, however, the precise understanding of the …

We employ a recent formulation for the optical properties of two-dimensional crystals from
first principles [L. Matthes, New J. Phys. 16, 105007 (2014) NJOPFM 1367-2630 …

Chemically doped graphene could support plasmon excitations up to telecommunication or
even visible frequencies. Apart from that, the presence of dopant may influence electron …

Surface plasmon polaritons (SPPs), which are electromagnetic modes representing
collective oscillations of charge density coupled with photons, have been extensively …

Starting from the rigorous quantum-field-theory formalism, we derive a formula for the
screened conductivity designed to study the coupling of light with elementary electron …