Leggett, Sir Anthony James

Leggett, Sir Anthony James,

1938–, British physicist, Ph.D. Oxford, 1964. He was a professor at Sussex Univ., England, from 1967 to 1983, when he joined the faculty at the Univ. of Illinois at Urbana Champaign. Leggett was a co-recipient, with Vitaly GinzburgGinzburg, Vitaly Lazarevich,
1916–2009, Russian physicist, Ph.D. Moscow State Univ., 1938. He was a researcher at Lebedev Physics Institute of the USSR (later Russian) Academy of Sciences after 1940.
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 and Alexei AbrikosovAbrikosov, Alexei Alekseyevich,
1928–2017, Russian-American physicist, Ph.D. Institute for Physical Problems, USSR Academy of Sciences, 1951. Abrikosov was a researcher at the Institute, then from 1965 to 1988 he was a department head at the Landau Institute, USSR Academy
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, of the 2003 Nobel Prize in Physics for making pioneering contributions to the theory of superfluids (see superfluiditysuperfluidity,
tendency of liquid helium below a temperature of 2.19°K; to flow freely, even upward, with little apparent friction. Helium becomes a liquid when it is cooled to 4.2°K;.
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). In the 1970s Leggett elucidated how atoms interact and are ordered in the superfluid state, when a liquid's viscosity becomes zero and the liquid exhibits unusual properties.
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