| http://www.w3.org/ns/prov#value | - a substrate; an active layer provided over said substrate, said active layer containing N and a group V element other than N; and another layer provided adjacent to said active layer at one side or both sides thereof, said another layer having a composition represented as GadIn1-dNeAsfP1-e-f (0???d???1, 0???e<1, 0???f???1) excluding GaAs, said active layer and said another layer accumulating there
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