He was awarded his doctorate by the University of Berlin in July 1932 and after that remained there attending lectures and acting as an unpaid assistant in the experimental physics laboratory.
Siya ay iginawad sa kanyang titulo ng doktor ng University of Berlin sa Hulyo 1932 at pagkatapos ay nanatili doon na dumalo sa lektura at kumikilos bilang isang hindi-bayad na assistant sa experimental physics laboratoryo.