Production of pulsed ultra slow muons and first mu SR experiments on thin metallic and magnetic films

Citation
K. Trager et al., Production of pulsed ultra slow muons and first mu SR experiments on thin metallic and magnetic films, PHYSICA B, 289, 2000, pp. 662-665
Citations number
4
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
0921-4526 → ACNP
Volume
289
Year of publication
2000
Pages
662 - 665
Database
ISI
SICI code
0921-4526(200008)289:<662:POPUSM>2.0.ZU;2-A
Abstract
At ISIS, RAL (UK) we have produced a pulsed ultra-slow muon beam (E less th an or similar to 20eV) and performed the first mu SR experiments. Thanks to the pulsed feature, the implantation time is automatically determined and, by adjusting the final muon energy between similar to 8 keV and 20 eV, dep th slicing experiments are possible down to monolayers distances. We report slicing experiments across a 20 nm copper film on quartz substrate with ev idence for a 2 nm copper oxide surface layer. A preliminary experiment on a hexagonal cobalt film suggests the existence of muon precession in the loc al magnetic field. (C) 2000 Published by Elsevier Science B.V. All rights r eserved.