We study transport through a semiconductor superlattice with an electric field parallel to and a magnetic field perpendicular to the growth axis. Using a semiclassical balance equation model with elastic and inelastic scattering, we find that (1) the current-voltage characteristic becomes multistable in a large magnetic field and (2) "hot" electrons display novel features in their current-volta...

We have studied the electron transport in SiO2(Co)/GaAs and SiO2(Co)/Si heterostructures, where the SiO2(Co) structure is the granular SiO2 film with Co nanoparticles. In SiO2(Co)/GaAs heterostructures giant magnetoresistance effect is observed. The effect has positive values, is expressed, when electrons are injected from the granular film into the GaAs semiconductor, and has the temperature-p...

The highlights of this review comprise the syntheses of magnetic NPs with tuneable shapes using simple procedures and by employing different reaction conditions. Efforts have been made to modify the coating of NPs to allow them to respond to external stimuli. Hollow structures and NPs composed of noble metals continue to be of interest. High quantum yield has been achieved in CdTe/CdSe semicond...