He worked on cuprates,[2] with the aim of making them electrodes of capacitors resistant to oxidation due to sintering, without noble metals.
They were awarded the Nobel Prize in Physics in 1987, after having reused a "sandwich" of copper oxide sheets designed by Bernard Raveau and his laboratory in Caen.
He then focused on the discovery of original structures with new physical or chemical properties, Bernard Raveau discovered new series of cuprates with a layered structure based on bismuth or thallium, or mercury associated with an alkaline earth cation, which are new superconducting materials at high critical temperature.
Bernard Raveau showed the colossal magnetoresistance (CMR) effect in insulating manganites, in small-sized A cation manganites doped with n, and discovered the CMR effect induced by doping manganese sites with different cations such as cobalt, nickel, chromium, strontium, ruthenium.
Finally, Bernard Raveau has identified cobaltites with a disjointed structure (misfits) whose remarkable thermoelectric properties are well studied for energy conversion at high temperatures.