Yang Ren Sun, J.R. Thompson, et al.
Physica C: Superconductivity and its applications
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.
Yang Ren Sun, J.R. Thompson, et al.
Physica C: Superconductivity and its applications
M.I. Nathan, T.N. Jackson, et al.
Journal of Electronic Materials
R. Mock, E. Zirngiebl, et al.
Physical Review Letters
A. Berton, J. Chaussy, et al.
Physical Review B