Hole-hole Interaction in a Strained InxGa1-xAs Two-dimensional System

The interaction correction to the conductivity of 2D hole gas in strained GaAs InxGa1-xAs GaAs quantum well structures was studied. It is shown that the Zeeman splitting, spin relaxation, and ballistic contribution should be taken into account for reliable determination of the Fermi-liquid constant F0σ. The proper consideration of these effects allows us to describe both the temperature and magnetic field dependences of the conductivity and to find the value of F0σ. © 2005 The American Physical Society.We thank Igor Gornyi for useful discussion. This work was supported in part by the RFBR (Grant Nos. 03-02-16150, 04-02-16626, and 05-02-16413), the CRDF (Grant Nos. EK-005-X1 and Y1-P-05-11), the INTAS (Grant No. 1B290), and the Russian Program Physics of Solid State Nanostructures