First-principles calculations with the full-potential linearized augmented plane-wave (FP-LAPW) method have been performed to investigate detailed electronic and linear optical properties of Sr<Subscript>2</Subscript>CuO<Subscript>2</Subscript>Cl<Subscript>2</Subsc ript>, which is a classical low-dimensional antiferromagnet (AFM) charge transfer (CT) insulator....<//subsc></subscript></subscript></subscript>

The quantum conductance oscillations (QCOs) of the intramolecular junction (IMJ) composed of two single-wall carbon nanotubes (SWNTs) have been studied by using a π-orbital only tight-binding (TB) model and a Green’s function technique. It is found that in the IMJs in addition to the rapid...

The binding energies and sizes of excitons, and energy splitting of the bright-dark excitons in single-walled carbon nanotubes have been calculated using the nonorthogonal tight-binding model, supplemented by the long-range Coulomb interaction. It is found that the binding energies and the sizes...

Growth in IT outsourcing is expected to remain high in the coming years as there have been widespread market claims that IT outsourcing can reduce firms' costs by over 30 percent. The scope and range of IT outsourcing services are also increasing, as evidenced by the promotion of ASP...