Michael Siemers

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The epitaxial film of the highly enriched 76 Ge isotope (average mass 75.63) was grown on an intrinsic Ge(111) substrate in an ultrahigh vacuum system (base pressure 10 Ϫ11 mbar) by molecular beam epi-taxy at a substrate temperature of 720 K, well below the threshold for bulk interdiffusion [H. D. Fuchs et al., Phys. Rev. B 51, 16817 (1995)]. Before and(More)
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