A Tri-Atomic Molecular Ion in γ-Irradiated CsF Crystal

Abstract

A new paramagnetic center, which is a linear tri-atomic molecular ion of [FCsF]⁰, has been observed in a γ-irradiated CsF crystal at LNT. The center has a ⟨100⟩ symmetry axis, and decays at 115 K. The parameters in the spin hamiltonian are determined from experiments. It is concluded that the hole trapped by the tri-atomic molecular ion has almost the same density at the three nuclei; F, Cs and F nuclei.