Boris Georgiyevich Lazarev (born 6.08.1906) is a Soviet experimental physicist and an academician of the Academy of Sciences of the Ukrainian SSR (1951). He was born in the village of Miropolye (now in the Sumy region). He graduated from the Leningrad Polytechnic Institute (1930). In 1928-32 he worked at the Leningrad Physico-Technical Institute and in 1932-37 at the Urals Physico-Technical Institute. Since 1937 he has worked at the Kharkov Physico-Technical Institute of the Academy of Sciences of the Ukrainian SSR (head of the cryogenic laboratory and head of a department).
His research was in the field of solid-state physics and the physics of the condensed state of matter, low-temperature physics, and cryogenic and vacuum engineering. He carried out studies of the superfluidity of liquid helium, the electronic properties of metals, the dynamics of the crystal lattice, superconductivity at high pressures, superconducting materials with high critical parameters, and the properties of the isotopes of helium and their mixtures. He discovered nuclear paramagnetism in solid hydrogen (1936, together with L. V. Shubnikov), the superfluid film of helium II (1938), quantum oscillations of the magnetic susceptibility in a large number of metals (with B. I. Verkin and others, 1949-51) and a phase transition of order 21/2 (with L. S. Lazareva, V. I. Makarov and others, 1963). His research on the superconducting properties of materials became the basis for the development and construction (1968-73) of a series of superconducting solenoids with record values of the magnetic field. He developed a method of separating the isotopes of helium (1950), together with L. S. Lazareva a method of obtaining high pressures at helium temperatures (1939-44, the “ice bomb” method), and together with E. S. Borovik and others high-vacuum cryocondensation and cryoadsorption pumps (1957-59).
USSR State Prize (1951) and the State Prize of the Ukrainian SSR (1982). He founded a school of physicists (B. I. Verkin, A. A. Galkin, E. S. Borovik, I. M. Dmitrenko, V. I. Khotkevich, I. A. Gindin, B. N. Eselson and others).