Semiconductor nanostructures are currently of high interest for a wide variety of electronic and optoelectronic applications. A large number of such devices is based on InAs/GaAs quantum dot structures. In the present work, the pathway of the InAs wetting layer evolution is studied in detail using scanning tunneling microscopy. Thin films varying between 0.09 ML and 1.65 ML of InAs material are grown on the GaAs(001) surface in both typical growth regimes, on the GaAs-c(4x4) and the GaAs-ss2(2x4) reconstructed surface. In principle, three growth stages are found. At low InAs coverages, the...
Semiconductor nanostructures are currently of high interest for a wide variety of electronic and optoelectronic applications. A large number of such d...
Judenjagd, hunt for the Jews, was the German term for the organized searches for Jews who, having survived ghetto liquidations and deportations to death camps in Poland in 1942, attempted to hide "on the Aryan side." Jan Grabowski's penetrating microhistory tells the story of the Judenjagd in Dabrowa Tarnowska, a rural county in southeastern Poland, where the majority of the Jews in hiding perished as a consequence of betrayal by their Polish neighbors. Drawing on materials from Polish, Jewish, and German sources created during and after the war, Grabowski documents the involvement of the...
Judenjagd, hunt for the Jews, was the German term for the organized searches for Jews who, having survived ghetto liquidations and deportations to ...
