Andrei Stanislavovich Borovik-Romanov (born 18.03.1920) was a Soviet experimental physicist, academician (1972; corresponding member 1966). He was born in Petrograd. He graduated from Moscow University (1947). In 1946-48 he worked at the Institute of Physical Problems of the USSR Academy of Sciences, and in 1948-56 at the Moscow State Institute of Measures and Measuring Instruments. From 1956 he was at the Institute of Physical Problems of the USSR Academy of Sciences (deputy director from 1963) and at the Moscow Institute of Physics and Technology.
His research concerned chiefly the physics of magnetic phenomena — weak ferromagnetism, antiferromagnetism, magnetic resonance, magneto-optics and spin waves — and also low-temperature metrology. He detected (1956) weak ferromagnetism in pure crystals of manganese and cobalt carbonate (before that weak ferromagnetism had been observed only in natural crystals of haematite) and explained the phenomenon observed. He discovered (1959) piezomagnetism. He determined theoretically the spectrum of the antiferromagnetic resonance of a weak ferromagnet in a magnetic field and confirmed experimentally the theoretical conclusions he had advanced. He developed a number of methods of observing spin waves. He showed that in antiferromagnets spin waves have a linear dispersion law, and he determined their velocity. He discovered the parametric generation of spin waves in antiferromagnets, and found that magnetic ordering leads to a strong change in the birefringence of light in transparent antiferromagnets. He discovered a number of new antiferromagnets. He observed Mandelstam — Brillouin scattering of light by parametrically excited spin waves. He designed a precision gas thermometer and calibrated a set of platinum thermometers that became the national standard of the practical temperature scale.
The M. V. Lomonosov Prize (1972).