Optical spectroscopy of disordered Ca3Ga2Ge4O14 crystal doped with manganese

被引：5

作者：

Burkov, Vladimir ^{[1
]}

Alyabyeva, Liudmila ^{[1
]}

Mill, Boris ^{[2
]}

Kotov, Viacheslav ^{[3
]}

机构：

[1] State Univ, Moscow Inst Phys & Technol, Inst Skii 9, Dolgoprudnyi 141701, Moscow Region, Russia

[2] Moscow MV Lomonosov State Univ, Leninskie Gory 1, Moscow 119991, Russia

[3] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect IRE, Mokhovaya 11-7, Moscow 125009, Russia

来源：

OPTICAL MATERIALS | 2018年 / 79卷

基金：

俄罗斯科学基金会;

关键词：

Optical spectroscopy; Circular dichroism; Absorption; Langasite; Transitional metal; Electron transition; CIRCULAR-DICHROISM SPECTRA; LANGASITE FAMILY CRYSTALS; TRANSITIONS;

D O I：

10.1016/j.optmat.2018.03.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Circular dichroism, absorption and luminescence spectra of single crystalline manganese doped calcium gallogermanate Ca3Ga2Ge4O14:Mn were investigated in 300-850 nm wavelength region in wide temperature range 8-300 K. Careful analysis of experimental results revealed presence of electron transitions typical for sixfold coordinated trivalent manganese ions with d(4) electron configuration. Thus, manganese ions doping the crystal matrix of CCG incorporate into lattice in la octahedral site-positions substituting Ga3+ ions. The results obtained were compared with investigation of isostructural to CGG manganese doped langasite crystals, La3Ga5SiO14:Mn where dopant is in octahedral Mn4+ state.

引用

页码：317 / 321

页数：5

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