Optical and magneto-optical spectra of insulating granular system Co-Al-O

Magneto-Optical properties of GaP single crystal

The temperature dependence of magneto-optical and magneto-photoconductivity measurements were carried out in the range of (200-330) K. A home made optical cryostat was used for the measurements. The measured room temperature value of the energy gap was found to be 2.211 eV. The temperature coefficient of energy gap was found to be -5.48×10-4 eV/K obtained by the optical absorption method and -4...

Optical and magneto-optical constants of MnPt3

Optically thick films of MnPt 3 were deposited on quartz using dc magnetron sputtering. The films were covered with an SiO x protective overcoat and annealed in vacuum at 850 °C for 1 h to form the crystalline L1 2 ͑Cu 3 Au͒ cubic structure. These films have a high degree of long-range order and are highly textured with the ͑111͒ axis along the film normal. Variable angle spectroscopic ellipsometry...

Beating oscillations of magneto-optical spectra in simple hexagonal graphite

The magneto-optical properties of simple hexagonal graphite exhibit rich beating oscillations, which are dominated by the field strength and photon energy. The former has a strong effect on the intensity, the energy range of the beating and the number of groups, and the latter modulates the total group numbers of the oscillation structures. The single-particle and collective excitations are sim...

Magneto-optical spectra of closely spaced magnetite nanoparticles

Magnetic and magneto-optical properties of sputtered Co/Pd multilayers

Co/Pd multilayer thin films consisting of Co layers between 2-25 ,~, and Pd layers of typically 14 A were prepared by rf sputtering. Hysteresis loops and the magnetization were measured parallel and perpendicular to the film plane. From these measurements and torque curves it was found that the muitilayers show a transition of the easy axis from an in-plane to a direction perpendicular to the f...