ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Radioactive119mSn has been implanted with an isotope separator in single crystals of germanium, silicon, and diamond. Implantations of low doses (∼1013 atoms/cm2) at room temperature were performed as well as of higher doses at temperatures of about 400°C. The Mössbauer spectra of these sources show mainly one line. This line originates from119mSn on substitutional lattice sites as determined from channeling experiments with 2 MeV He+ ions on the same samples. The observed systematics of the isomer shifts for119Sn is explained on the basis of the average electronic configuration ns Z snp Z p characterizing chemical bonding in the host crystals. The Debye-Waller factors measured at room temperature are compared to values calculated in a high temperature approximation which accounts for impurity-host mass difference.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01022445
Permalink