Mössbauer-effect studies of the lattice dynamics of granular tin

S. Akselrod*, M. Pasternak, S. Bukshpan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The atomic mean-square displacement (MSD) of granular tin was studied by the Mössbauer effect. Tin grains with a 45- average size embedded in an oxide matrix were produced by evaporating the metal in the presence of O2. The lattice parameters and grain-size distribution were measured by electron microscopy. From the temperature variation of the MSD of the granular material, it was found that the ω-2 moment of the phonon spectrum increases by (8±3)% with respect to the bulk. These results, combined with data of the hyperfine constants and electron microscopy suggest a quasi-isolated grain whose vibration frequency and electronic structure are barely altered and whose interaction with the surrounding oxide is negligible.

Original languageEnglish
Pages (from-to)1040-1044
Number of pages5
JournalPhysical Review B-Condensed Matter
Volume11
Issue number3
DOIs
StatePublished - 1975

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