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Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Physics 1972
John Bardeen, Leon N. Cooper, Robert Schrieffer

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Robert Schrieffer - Facts

John Robert Schrieffer

John Robert Schrieffer

Born: 31 May 1931, Oak Park, IL, USA

Affiliation at the time of the award: University of Pennsylvania, Philadelphia, PA, USA

Prize motivation: "for their jointly developed theory of superconductivity, usually called the BCS-theory"

Field: superconductivity

Prize share: 1/3

Work

When certain metals are cooled to extremely low temperatures, they become superconductors, conducting electrical current entirely without resistance. Based on quantum mechanics, Robert Schrieffer, Leon Cooper, and John Bardeen formulated a theory for the phenomenon in 1957. At extremely low temperatures, the interaction between electrons and atoms in the metals' crystalline structure causes the electrons to pair up with one another. As a result, their movement becomes orderly, unlike the random movement at normal temperatures, and electrical resistance disappears.

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