Erwin Hahn

Enjoyed listening to him lecture at UCB. His work of course led to many other spin echoes, including the triplet state electron spin echoes that we did in C.B. Harris' group at UCB and the ones I did later at NYU. Remember his sense of humor, once at a lecture he mentioned the "tri-level echo" first observed when he was at Columbia (?). He said he first wanted to call it the "tri-state echo", but this was refused, because they thought it might be referring to NY, NJ, and Conn., i.e. the...