Alfred Brian Pippard ( born 7.09.1920) — an English physicist, a Fellow of the Royal Society (1956). He was born in London. He graduated from the University of Cambridge (1941), where he has worked since 1946 (from 1960 as professor, from 1971 as director of the Cavendish Laboratory).
His work was in the fields of solid-state physics, low-temperature physics and the theory of superconductivity. In 1947 he constructed the theory of the anomalous skin effect in metals. In 1953 he was the first to introduce the concept of long-range order of electrons in superconductors and of the coherence length, and modified the London model of superconductivity by developing a nonlocal theory of superconductivity. He was the first to detect that the properties of a superconductor depend on the concentration of impurities. He laid the foundations of the concepts of type II superconductors. In 1957 he constructed the first detailed model of the Fermi surface of a metal, and in particular established the shape of the Fermi surface for copper. In 1957 he gave an explanation of magnetoacoustic resonance. He created the first superconducting galvanometer (1952).
The D. Hughes Medal (1959), the D. Heineman Prize (1969) and others.