Ochsenfeld, Robert

Twenty years later, in 1933, the German physicist Walter Meissner (together with his co-worker Robert Ochsenfeld) discovered that superconductors cannot be crossed by magnetic field lines. This property is today defined as the Meissner effect. 

Meissner, Walther (1882-1974) and his graduate student Robert Ochsenfeld (1901-1993), both Germans working in Berlin, discovered in 1933 that a superconducting material repels a magnetic field— behaving as a perfect diamagnet. The effect became known as the Meissner (or Meissner-Ochsenfeld) effect... 

The Meissner effect Is named for Walter Meissner, 1882-1974, who with Robert Ochsenfeld discovered the effect In 1933. 

---