A Visit to the Ioffe Physicotechnical Institute in Leningrad
One of the leading Soviet centers for research in solid state, quantum electronics, nuclear and plasma physics, the Ioffe Physicotechnical Institute in Leningrad employs 2000 persons. When we visited the institute last summer we spoke with V. M. Tuchkevich, recently named director, and many others, and learned of varied work in semiconductors, including heterojunction lasers, II‐IV‐V compounds, cyclotron waves in semimetals, and band tailing.