John Robert Schrieffer

John Robert Schrieffer (born May 31, 1931) is an American physicist and winner, with John Bardeen and Leon Neil Cooper, of the 1972 Nobel Prize for Physics for developing the BCS theory (for their initials), the first successful microscopic theory of superconductivity.

Related Topics:
May 31 - 1931 - John Bardeen - Leon Neil Cooper - 1972 - Nobel Prize for Physics - BCS theory - Superconductivity

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He was born in Oak Park, Illinois, but his family moved in 1940 to Manhasset, New York, and then in 1947 to Eustis, Florida, where his father a former pharmaceutical salesman began a career in the citrus industry. In his Florida days, Schrieffer enjoyed playing with homemade rockets and ham radio, a hobby that sparked an interest in electrical engineering.

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After graduating from Eustis High School in 1949, Schrieffer was admitted to the Massachusetts Institute of Technology, where for two years he majored in electrical engineering before switching to physics in his junior year. He completed a bachelor's thesis on multiplets in heavy atoms under the direction of John C. Slater in 1953. Pursuing an interest in solid-state physics, Schrieffer began graduate studies at the University of Illinois, where he was hired immediately as a research assistant to John Bardeen. After working out a theoretical problem of electrical conduction on semiconductor surfaces, Schrieffer spent a year in the laboratory, applying the theory to several surface problems. In his third year of graduate studies, he joined Bardeen and Leon Cooper in developing the theory of superconductivity.

Related Topics:
Massachusetts Institute of Technology - University of Illinois

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Schrieffer recalls that in January 1957 he was on a subway in New York City when he had an idea of how to describe mathematically the ground state of superconducting atoms. Schrieffer and Bardeen?s collaborator Cooper had discovered that electrons in a superconductor are grouped in pairs, now called Cooper pairs, and that the motions of all Cooper pairs within a single superconductor are correlated and function as a single entity. Schrieffer?s mathematical breakthrough was to describe the behavior all Cooper pairs at the same time instead of each individual pair. The day after returning to Illinois, Schrieffer showed his equations to Bardeen who immediately realized they were the solution to the problem. The BCS theory (Bardeen-Cooper-Schrieffer) of superconductivity, as it is now known, accounted for more than 30 years of experimental results that had stymied some of the greatest theorists in physics, including Niels Bohr.

Related Topics:
Cooper pairs - Niels Bohr

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After completing his doctoral dissertation on the theory of superconductivity, Schrieffer spent the 1957-58 academic year as a National Science Foundation fellow at the University of Birmingham in England and at the Niels Bohr Institute in Copenhagen, where he continued research into superconductivity. Following a year as assistant professor at the University of Chicago, he returned to the University of Illinois in 1959 as a faculty member. In 1960, he went back to the Bohr Institute for a summer visit, during which he became engaged to Anne Grete Thomsen whom he married at Christmas of that year. Two years later, Schrieffer joined the faculty of the University of Pennsylvania in Philadelphia, and, in 1964, Schrieffer published his book on the BCS theory, Theory of Superconductivity.

Related Topics:
National Science Foundation - University of Birmingham - Niels Bohr Institute - University of Pennsylvania in Philadelphia

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In 1972, Schrieffer along with John Bardeen and Leon Cooper won the 1972 Nobel Prize in Physics for developing the BCS theory. In 1980, Schrieffer became a professor at the University of California, Santa Barbara, and rose to chancellor professor in 1984, serving as director of the university?s Institute for Theoretical Physics. In 1992, Florida State University appointed Schrieffer as a university eminent scholar professor and chief scientist of the National High Magnetic Field Laboratory, where he continues to pursue one of the great goals in physics: room temperature superconductivity.

Related Topics:
University of California, Santa Barbara - Institute for Theoretical Physics - Florida State University - National High Magnetic Field Laboratory

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On July 25, 2005, Schrieffer pleaded no contest to vehicular manslaughter in Santa Barbara, California, for causing an accident in September 2004 that killed one and injured seven others. He was driving on a suspended license at the time, slamming into the victims' vehicle at over 100mph. He is currently at Wasco State Prison for a 90-day evaluation period, afterwhich a judge is likely to sentence him to a term in prison, not county jail as probation officials recommended. He is to be formally sentenced in November 2005.

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