2-PHONON QUANTUM DIFFUSION OF MUONIUM IN SOLID NITROGEN

Authors
STORCHAK V BREWER JH HARDY WN KREITZMAN SR MORRIS GD
Citation
V. Storchak et al., 2-PHONON QUANTUM DIFFUSION OF MUONIUM IN SOLID NITROGEN, Physical review letters, 72(19), 1994, pp. 3056-3059
Citations number
35
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
72
Issue
19
Year of publication
1994
Pages
3056 - 3059
Database
ISI
SICI code
0031-9007(1994)72:19<3056:2QDOMI>2.0.ZU;2-M
Abstract
The spin dynamics of the muonium (mu+ e- or Mu) atom diffusing in soli d nitrogen ((N2)-N-14) has been studied using the techniques of muoniu m spin rotation and relaxation. The temperature dependence of the Mu h op rate tau(c)-1 reveals that Mu diffusion in solid nitrogen is a quan tum tunneling process governed by the two-phonon interaction. At low t emperatures the Mu atom is strongly localized by suppression of band m otion due to interaction with defects.