Absorption and Circular Dichroism Spectra of La{sub 3}Ga{sub 5}SiO{sub 14} Crystals Doped with Pr{sup 3+}, Ho{sup 3+}, and Er{sup 3+} Ions

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774510060131· OSTI ID:22054072

Burkov, V I; Mill, B V ^[1]

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1. Moscow State University (Russian Federation)

The absorption and circular dichroism (CD) spectra of La{sub 3}Ga{sub 5}SiO{sub 14} langasite crystals doped with Pr{sup 3+}, Ho{sup 3+}, and Er{sup 3+} ions have been studied in the wavelength range of 350-700 nm. The electronic transitions of these ions, which replace La3+ ions in the 3e position with the symmetry 2, are observed in the spectra. All transitions are active in both the absorption and CD spectra. The dipole strengths D{sub om}, rotational strengths R{sub om}, and anisotropy factors g have been calculated for well-resolved bands. Some features are noted for the spectra that were obtained, and their relationship with the structure disorder is considered.

• OSTI ID: 22054072
• Journal Information: Crystallography Reports, Vol. 55, Issue 6; Other Information: Copyright (c) 2010 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ANISOTROPY
CRYSTALS
DICHROISM
DIPOLES
DOPED MATERIALS
ERBIUM IONS
HOLMIUM IONS
PRASEODYMIUM IONS
SPECTRA
SYMMETRY