Low temperature transport properties of InAs/GaAs structures with quantum dots
The transport and optical properties of InAs/GaAs structures with quantum dots have been investigated as a function of InAs content. Photoluminescence (PL) spectra showed polarization of radiation in the plane of the structures. The temperature dependence of the resistance was measured in the [110] and [?110] directions in the temperature range 4.2 K300 K and anisotropy of conductivity was found. The Shubnikov de Haas effect, magnetoresistance ?(B) and the Hall effect have been measured in a magnetic field B up to 10 T.
quantum dots photoluminescence anisotropy of conductivity magnetoresistance shubnikovde haas effect