CHARGE-TRANSPORT IN AL2O3

Authors
STORCHAK VG BREWER JH MORRIS GD
Citation
Vg. Storchak et al., CHARGE-TRANSPORT IN AL2O3, Hyperfine interactions, 105(1-4), 1997, pp. 277-282
Citations number
12
Categorie Soggetti
Physics, Atomic, Molecular & Chemical","Physics, Nuclear","Physics, Condensed Matter
Journal title
Hyperfine interactions → ACNP
ISSN journal
03043843
Volume
105
Issue
1-4
Year of publication
1997
Pages
277 - 282
Database
ISI
SICI code
0304-3843(1997)105:1-4<277:CIA>2.0.ZU;2-K
Abstract
Muon spin relaxation measurements in transverse and zero magnetic fiel ds reveal muonium atom formation to be a thermally activated process i n Al2O3 (sapphire) crystal. Experiments in electric fields up to 100 k V/cm unambiguously show that muonium is formed via the delayed channel of the radiolysis electron (created in the muon's track) transport to the mu(+). The formation of the ''electronic polaron'' is believed to be the limiting mechanism for electron transport in sapphire.