Energy level shifts in the Ce3+ ion in lanthanum ethylsulfate under hydrostatic pressure
I. M. KryginPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, DonetskС. Н. ЛукинPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, DonetskA. D. ProkhorovPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Donetsk
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We have studied the influence of hydrostatic pressure on the splitting Δ of two Kramers doublets of the Ce3+ ion in lanthanum ethylsulfate. The rate of change of the initial splitting ∂Δ/∂P = −2.8 cm−1/kbar is significantly larger than in yttrium and europium ethylsulfate, due to the difference in the ionic radii of the impurity and substituted ions.
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