Abstract

We have demonstrated the crystal growth of Si1−x−ySnxCy ternary alloy layers on Si(001) substrates by radio-frequency magnetron sputtering. We have investigated the crystalline properties of the ternary alloy layers and clarified the influence of Sn and C on the crystalline structure of Si1−x−ySnxCy layers. We found that the epitaxial growth temperature of Si1−x−ySnxCy decreased and the island growth was suppressed by the introduction of Sn. The Sn precipitation was also effectively suppressed by C introduction. The substitutional C content of Si1−x−ySnxCy was estimated to be 2.7% and exceeded the thermal equilibrium solid solubility of C into the Si matrix.

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