1908-91, American physicist; b. Madison, Wis. He was
known for his studies of semiconductivity and other
aspects of SOLID-STATE PHYSICS. The first to win a
Nobel Prize twice in the same field, Bardeen shared the
1956 physics prize with Walter Brattain and William
Shockley, for work in developing the TRANSISTOR,
and the 1972 physics prize with Leon Cooper and John
Schreiffer, for their theory of SUPERCONDUCTIVITY.

Bardeen, John (1908-1991), American physicist
born in Madison, Wisconsin. Working at Bell
Laboratories in New Jersey, Bardeen was a member
of the team that developed the transistor. For this
work, he shared the 1956 Nobel Prize in physics with
American physicists William Shockley and Walter H.

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Brattain. In 1972 he shared the Nobel Prize in
physics with American physicists Leon N. Cooper
and John R. Schrieffer for the development of a
theory to explain superconductivity. He was the first
scientist to win two Nobel Prizes in the same