COMPOSITE MATERIAL COMPRISING A III-V COMPOUND LAYER AND A RARE EARTH NUCLEIC LAYER, PROCESS FOR MANUFACTURING AND APPLICATION

摘要

The present invention relates to a composite material. This material comprises at least one layer A of III-V compounds and one epitaxial layer B on said layer of III-V compounds, said layer of epitaxy having the empirical formula TrPc wherein Tr is selected from the group of rare earths (scandium, yttrium, preferably lanthanum, lanthanides, and mixtures thereof); and wherein Pc is selected from the elements of column V of the periodic table of the elements and mixtures thereof and in that when Pc comprises arsenic, the TrPc compound is at least one ternary compound. / P P Application to the electronics industry. / P