D. Kaiser, F. Holtzberg, et al.
Applied Physics Letters
Electronic transitions between the FJ7 multiplet levels of Sm2+ have been observed optically in SmS, SmSe, SmTe, and Sm1-xYxS. In SmS, SmSe, and SmTe, the strong temperature dependence of the singlet-triplet energy is well described by the random-phase-approximation results of Wang and Cooper, allowing us to determine both the exchange and the spin-orbit interaction. However, no temperature dependence of the singlet-triplet energy is observed in metallic Sm1-xYxS. © 1975 The American Physical Society.
D. Kaiser, F. Holtzberg, et al.
Applied Physics Letters
M.J. Freiser, S. Methfessel, et al.
Journal of Applied Physics
N.C. Yeh, W. Jiang, et al.
Ferroelectrics
R.F. Rutz, M.I. Nathan, et al.
Proceedings of the IEEE