A theoretical study has been carried out to analyse the available results from the inelastic neutron scattering experiment performed on a quasi-two dimensional spin- \hbox{$\frac{1}{2}$} 1 2 ferromagnetic material K<Subscript>2</Subscript>CuF<Subscript>4</Subscript>. Our formalism is based on a conventional semi-classical like treatment...</subscript></subscript>

The collective elementary excitations of two-dimensional magnetoexcitons in a Bose-Einstein condensate (BEC) with wave vector <Emphasis Type="Bold">k = 0 were investigated in the framework of the Bogoliubov theory of quasiaverages. The Hamiltonian of the electrons and holes lying in the lowest Landau levels (LLLs)...</emphasis>

The effect of optimum dilution of antiferromagnetic (AF)/ferromagnetic (FM) interface necessary for observance of positive exchange bias in ion-beam sputtered Si/Ir<Subscript>22</Subscript>Mn<Subscript>78</Subscript> (t <Subscript>AF</Subscript> = 12, 18, 24 nm)/Co<Subscript>20</Subscript>Fe<Subscript>60</Subscript>B<Subscript>20</ Subscript>(t <Subscript>FM</Subscript> = 6,9,15 nm) exchange coupled bilayers is investigated by magnetic annealing...</subscript><//></subscript></subscript></subscript></subscript></subscript></subscript>

We deposited amorphous Bi films with a thickness between 3 and 6.5 nm at 4.2 K on top of previously deposited Co clusters having a mean size of ∼4.5 nm. The Co cluster layers thickness was between 2.3 and 5 nm. In-situ electrical transport measurements were performed between 2 and 100 K....

Positron annihilation spectroscopy was applied to investigate the nature and thermal behavior of defects induced by Cu diffusion in Zn-doped p-type GaAs crystals. Cu atoms were intentionally introduced in the GaAs lattice through thermally activated diffusion from a thin Cu capping layer at 1100...

Field-, temperature- and angle-dependent Fourier amplitude of de Haas-van Alphen (dHvA) oscillations are calculated for compensated two-dimensional (2D) metals with textbook Fermi surface (FS) composed of one hole and two electron orbits connected by magnetic breakdown. It is demonstrated that,...

We investigate the dynamics of charge carriers hopping from one trap to the other trap along an n-type semiconductor layer consisting of a spatially nonhomogeneous trap distribution of depth Φ assisted by thermal noise. The trap profile is denser at the center and decays as one moves outward....

We present the exact solution, obtained by means of the Transfer Matrix (TM) method, of the 1D Hubbard model with nearest-neighbor (NN) and next-nearest-neighbor (NNN) Coulomb interactions in the atomic limit (t = 0). The competition among the interactions (U, V <Subscript>1</Subscript>, and V <Subscript>2</Subscript>) generates a plethora...</subscript></subscript>

The charge storage behavior of nanostructures based on Si<Subscript>1−x </Subscript>Ge<Subscript> x </Subscript> (0 ≤ x ≤ 1) nanocrystals (NCs) in an Al<Subscript>2</Subscript>O<Subscript>3</Subscript> matrix was investigated. The structures have been grown by RF magnetron sputtering and subsequently annealed at temperatures ranging from 700 °C to 1000 °C for 30 min in nitrogen...</subscript></subscript></subscript></subscript>

We reveal that two-dimensional semiconductors with Rashba spin-orbit interaction (R2DG) exhibit exceptionally strong nonlinear optical response (NOR) in the terahertz frequency regime. The spin-split of the parabolic energy band in R2DG allows strong multiple-photon process to occur via...