Spin-filter effect is predicted in a weak coupled junction composed of a nonmagnetic metal electrode and a zigzag carbon nanotube. This effect is induced by the
The momentum-space coupled-channels-optical (CCO) method is used to study the resonances in electron-oxygen collision in the energy region of 9-12 e V. Present
We propose new coefficients for the Sellmeier equations of 1.0mol% Mg-doped stoichiometric LiTaO3. The extraordinary refractive indices for the wavelength rang