Optical and Depolarization Spectroscopy of Doubly Doped Alkaline‐Earth Fluorides,Physica Status Solidi (B) - Basic Solid State Physics

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Optical and Depolarization Spectroscopy of Doubly Doped Alkaline‐Earth Fluorides
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2020-04-08 , DOI: 10.1002/pssb.201900465
Evgeny Radzhabov ₁

Affiliation

The process of recharging heterogeneous lanthanides in SrF₂ and BaF₂ crystals is studied by parallel measurements of optical absorption spectra and thermodepolarization curves. Electron transfer between lanthanides Yb²⁺–Nd³⁺, Eu²⁺–Yb³⁺ in SrF₂, and between Yb²⁺–Nd³⁺, Eu²⁺–Yb³⁺, and Yb²⁺–Dy³⁺ in BaF₂ is studied. Electron phototransfer between lanthanides, registered by a change in the absorption bands of divalent lanthanides, is accompanied by a backward migration of charge‐compensating interstitial fluorine, which is detected by a change in the corresponding thermodepolarization peaks of

{Ln}^{3 +} {–F}_{i}^{-}

.

中文翻译：

双掺杂碱土金属氟化物的光学和去极化光谱

通过并行测量光吸收光谱和热去极化曲线，研究了SrF ₂和BaF ₂晶体中异质镧系元素的再填充过程。镧系元素的Yb之间的电子转移²⁺ -Nd ³⁺，Eu的²⁺ -Yb ³⁺中的SrF ₂，和Yb之间²⁺ -Nd ³⁺，Eu的²⁺ -Yb ³⁺和Yb ²⁺ -Dy ³⁺在BaF ₂被研究。镧系元素之间的电子光转移被二价镧系元素的吸收谱带变化所记录，伴随着电荷补偿性间隙氟的向后迁移，这可以通过相应的热去极化峰的变化来检测。

n^{3 +} {-F}_{一世}^{-}

。

更新日期：2020-04-08

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