Mixed Crystals: μ-PD vs. Czochralski Method

Novoselov, A.

doi:10.1007/978-3-540-71295-4_6

Cited by 1 publication

(1 citation statement)

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“…In order to compensate the losses of evaporated gallium oxide during growth, sometimes excess of Ga 2 O 3 is added into the starting material [7,8]. The losses of gallium oxide occur during crystals growth performed by μ-pulling down method [9], too. Using as starting material one phase polycrystalline GGG did not solve this problem [10].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of Nd doped gadolinium gallium garnet nanopowders and crystals

Lipińska

Ryba‐Romanowski

Rzepka³

et al. 2009

Cryst. Res. Technol.

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The structural and optical features of gallium gadolinium garnet (GGG) nanopowders doped with neodymium were investigated. Nanopowders of GGG:Nd were prepared by modified sol-gel method using acetic acid as complexing agent. This way permitted to incorporate large amounts of dopant (up to 10 %) without destroying garnet structure. Small single crystals of Nd:GGG were grown by a µ-pulling down method and spectroscopic features of nanopowders and their single crystal counterparts were compared. It has concluded that the Nd 3+ ions are located preferentially in the same type of sites in crystal lattices of GGG:Nd nanopowders and their single crystal counterparts. In addition, it follows from the perfect agreement of emission wavelengths and line width recorded for nanopowders and single crystal samples that the crystal lattice of GGG in nanopowders is not distorted.

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