title: Spin-lattice relaxation by the direct process in optically excited Er3+ in LaF3.
abstract: Spin-lattice relaxation within the lower Stark component of the metastable 4S3 /2 state of Er3+ ions in LaF3 has been studied by an optical method at high magnetic fields B and at low crystal temperature. The relaxation rate increases as B5, as expected for a direct-process relaxation within Kramers doublets at large Zeeman splittings.
authors.affiliation: Institut für Angewandte Physik, Universität Regensburg, 8400 Regensburg, West Germany
authors.forename: H
authors.initials: H
authors.lastname: Wolfrum
authors.forename: K
authors.initials: K
authors.lastname: Lanzinger
authors.forename: K F
authors.initials: KF
authors.lastname: Renk