Study of growth, spectra properties and Cr4+ formation mechanism of Cr,Mg:GSGG crystal | Zendy

Jiang Da-peng | Zendy; Su Liang-Bi | Zendy; Jun Xu | Zendy; Tang Hui-Li | Zendy; Wu Feng | Zendy; Zheng Lihe | Zendy; QingGuo Wang | Zendy; Guo Xin | Zendy; Yuqi Zou | Zendy

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Study of growth, spectra properties and Cr4+ formation mechanism of Cr,Mg:GSGG crystal

Author(s) -

Jiang Da-peng,

Su Liang-Bi,

Jun Xu,

Tang Hui-Li,

Wu Feng,

Zheng Lihe,

QingGuo Wang,

Guo Xin,

Yuqi Zou

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.038102

Subject(s) - materials science , absorption spectroscopy , ion , annealing (glass) , oxidizing agent , spectral line , czochralski method , crystal (programming language) , absorption (acoustics) , doping , analytical chemistry (journal) , crystallography , optics , chemistry , physics , optoelectronics , astronomy , computer science , programming language , organic chemistry , chromatography , composite material

Cr,Mg:GSGG crystals are successfully grown by the Czochralski method. The influences of reducing- and oxidizing- annealing treatments on the absorption spectra of Cr,Mg:GSGG crystals are investigated. From the changes of their absorption spectra, it can be inferred that the Cr4+ ions are initially generated at octahedrally coordinated sites, and then exchange positions with tetrahedral Ga3+ ions in neighboring sites under heat exciting. Differences between absorption spectra also suggest that Mg2+ ions can improve the concentration of tetrahedral Cr4+ ions.

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