Magnetic field effect on the photoluminescence of an Eu impurity during its aggregation in NaCl crystals
Magnetic field effect on the photoluminescence of an Eu impurity during its aggregation in NaCl crystals
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磁场对 Eu 杂质在 NaCl 晶体中聚集过程中光致发光的影响
DOI：
10.1134/1.1520628
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
V. Kulakov
中科院分区：
文献类型：
--
作者：
R. Morgunov;S. Shmurak;B. K. Ponomarev;A. Baskakov;V. Kulakov
研究发现，在NaCl：Eu晶体中杂质聚集成配合物的过程中，外加磁场（20 T）对晶体的光致发光吸收光谱有影响。光谱的变化是不可逆的，并观察淬火后的晶体在早期阶段的小亚稳复合物含有杂质空位Eu 2 +-V偶极子的形成。揭示了磁致塑性效应的发生与晶体在磁场中的光学性质变化之间的相关性。
It is found that a magnetic field up to 20 T affects photoluminescence absorption spectra in NaCl:Eu crystals in the process of impurity aggregation into complexes. The spectral changes are irreversible and are observed after quenching the crystals at the early stages of the formation of small metastable complexes containing impurity-vacancy Eu2+-V dipoles. Emporal correlations revealed between the occurrence of the magnetoplastic effect and a change in the optical properties of the crystals in a magnetic field.