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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.

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