Spin-lattice relaxation by the direct process in optically excited Er3+ in LaF3.
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.
Wolfrum
H
H
Institut für Angewandte Physik, Universität Regensburg, 8400 Regensburg, West Germany
Lanzinger
K
K
Renk
K F
KF