In 1952 Abrikosov discovered the way in which magnetic flux can penetrate a superconductor. The phenomenon is known as type-II superconductivity, and the accompanying arrangement of magnetic flux lines is called the Abrikosov vortex lattice.
A Short Biography (http://www.msd.anl.gov/groups/cmt/people/abrikosov.html), on the website of the Material Science Division of Argonne National Laboratory
An article about 2003 Nobel Prize in Physics (in Russian) (http://phys.unn.ru/Gazeta/03/), includes a short biography of Alexei Abrikosov