Quantum size effects in PbSe quantum wells

In PbSe epitaxial thin films grown by thermal evaporation on KCl(001) substrates and covered with an EuS protective layer, oscillatory dependences of the galvanomagnetic and thermoelectric properties (electrical conductivity sigma, the Hall coefficient R-H, charge carrier mobility mu, and the Seebeck coefficient S) on the PbSe layer thickness d (3<200 nm) were observed at room temperature. Oscillations of the transport properties are associated with quantum size effects due to electron confinement in the PbSe quantum wells. (C) 2002 American Institute of Physics.