What are the semiconductors with lowest thermal conductivity that can be grown on GaAs with the least possible incorporated strain (i.e. lattice-matched or close to it)?
GaAs has thermal conductivity of about 45–55 W/(m.K)
One possibility is GaInP with ~50% Indium which has thermal conductivity of about 5 W/(m.K), ~10x lower than GaAs
Are there others with even lower thermal conductivity?
Thanks in advance.