Nuclear orientation of radioactive Mn-56 ions implanted in the insulators MnCl2 center dot 4H(2)O and CoCl2 center dot 6H(2)O

Authors
Pond, J Beck, D De Moor, P Phalet, T Prandolini, M Schuurmans, P Severijns, N Briant, T Turrell, BG Vanneste, L Vereecke, B Versyck, S
Citation
J. Pond et al., Nuclear orientation of radioactive Mn-56 ions implanted in the insulators MnCl2 center dot 4H(2)O and CoCl2 center dot 6H(2)O, PHYS REV B, 62(18), 2000, pp. 12241-12246
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
62
Issue
18
Year of publication
2000
Pages
12241 - 12246
Database
ISI
SICI code
0163-1829(20001101)62:18<12241:NOORMI>2.0.ZU;2-R
Abstract
Low-temperature nuclear orientation experiments on radioactive Mn-56 ions i mplanted into insulating, antiferromagnetic crystals of MnCl2. 4H(2)O and C oCl2. 6H(2)O are reported. In MnCl2. 4H(2)O, comparison of the gamma -ray a nisotropy of the Mn-56 nuclei with that of Mn-54, doped into the sample dur ing growth, showed that both the Mn-56 and Mn-54 spins felt a Very similar hyperfine field. The site occupancy factor in a simple, two-site model was deduced to be 0.96(-0.07)(+0.4). In CoCl2. 6H(2)O, the average hyperfine fi eld for the implanted Mn-56 was significantly less than that for Mn-54 and corresponded to f= 0.53+/-0.10.