Abstract

We observed the growth of epitaxial Al(111) films on Si(111) at room temperature by the partially ionized beam deposition technique. The films were deposited in a conventional vacuum condition without in situ cleaning. The beam contained 0.3% of Al self-ions and a bias potential of 1 kV was applied to the substrate during deposition. X-ray diffraction (pole figure) revealed that one of the two possible twin structures, with the Al〈1̄10〉∥Si〈1̄10〉 orientation, was preferentially grown on the Si substrate.

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