SIMULTANEOUS OBSERVATION OF MUONIUM AND MULTIPLE FREE-RADICALS IN MUON-IMPLANTED C-70

Citation
C. Niedermayer et al., SIMULTANEOUS OBSERVATION OF MUONIUM AND MULTIPLE FREE-RADICALS IN MUON-IMPLANTED C-70, Physical review. B, Condensed matter, 47(16), 1993, pp. 10923-10926
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
47
Issue
16
Year of publication
1993
Pages
10923 - 10926
Database
ISI
SICI code
0163-1829(1993)47:16<10923:SOOMAM>2.0.ZU;2-Z
Abstract
Positive muons injected into solid C70 form a vacuumlike muonium (Mu) state with a 25% probability. This state is attributed to muons inside the C70 cage (C70:MU). In addition, three different types of muonated free radicals, distinguishable by their hyperfine coupling constants, are observed. These radicals are attributed to muonium addition on th e outside of the C70 molecule at different sites. The hyperfine parame ters of these radicals reflect the different degrees of delocalization of the unpaired electron. The temperature dependence of the depolariz ation rates yields information on the dynamics of the C70 molecules.