Flux growth of single magnetic sublattice antiferromagnetic garnets Ca3 Fe2 Ge3 O12 and Ca3 Mn2 Ge3 O12 |
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| Authors: | JM Desvignes HLe Gall |
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| Affiliation: | Laboratoire de Magnétisme et d''Optique des Solides C.N.R.S. - 92190 Meudon-Bellevue - France |
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| Abstract: | Magnetic single crystals garnets Ca3 X2 Ge3 O12 with X = Mn3+ or Fe3+ containing Ca2+ and Ge4+ are of great interest due to the rise of an antifer-romagnetic order in one definite octahedral site. The optimal conditions for obtaining single magnetic-sublattice garnets of large size (1 cm in diameter) have been analyzed. Two groups of solvents have been tested: Bi2 O3 or PbO based flux. The best results were obtained with PbO flux and starting composition : % Moles 44 PbO 1b 35 GeO2 1b 15 CaO 1b 6 X2 O3. |
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