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Impurity centers

Long-range coulomb interaction of electrons of 4$f$ orbitals in impurity centers Yb$^{3+}$ : KZnF$_3$, CsCaF$_3$, and Sm$^{3+}$ : CaF$_2$

O. A. Anikeenok

Kazan (Volga Region) Federal University

Abstract: Expressions for calculating the matrix elements of the Coulomb interaction of $f$ electrons of the isolated ion with an infinite crystal lattice have been obtained. The contribution of this interaction to the parameters of the crystal field in impurity centers Yb$^{3+}$ : KZnF$_3$, CsCaF$_3$, and Sm$^{3+}$ : CaF$_2$ has been calculated.

Received: 15.04.2013

 English version: Physics of the Solid State, 2013, 55:11, 2304–2310

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