2006
DOI: 10.1103/physrevb.73.045311
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Abstract: Multilayers composed of materials with low ͑Sn͒ and high ͑Si͒ bulk melting points were grown at room temperature by ultrahigh vacuum deposition. 119 Sn Mössbauer spectroscopy has been used to investigate the temperature dependence of the Debye-Waller factor f, the mean-square displacement, and the mean-square velocity of 119 Sn nuclei in ultrathin ͑10 Å thick͒ ␣-like Sn layers embedded between 50 Å thick Si layers. The f factor was found to be nonzero with a value of 0.036± 0.009 even at 450°C. This provides u…

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