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Gadolinium ytterbium trifluoride, Gd0.81Yb0.19F3

Gadolinium ytterbium trifluoride, Gd0.81Yb0.19F3 A new gadolinium ytterbium trifluoride has been grown for the first time by the Czochralski technique. Although GdF3 and YbF3 both present a high-temperature phase transition, the mixed compound Gd0.81Yb0.19F3 maintains its crystallographic structure upon cooling to room temperature. Taking into account that both Gd3+ and Yb3+ ions are distributed randomly on a single site (Wyckoff position 4c), this is attributed to a mean cationic radius coincident with that of the Tb3+ ion, so that the stability of the crystal structure resembles that of TbF3. The grown crystal melts noncongruently at 1413 K, it is transparent and colourless, and it has a high density. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Crystallographica Section C: Crystal Structure Communications International Union of Crystallography

Gadolinium ytterbium trifluoride, Gd0.81Yb0.19F3

Gadolinium ytterbium trifluoride, Gd0.81Yb0.19F3


Abstract

A new gadolinium ytterbium trifluoride has been grown for the first time by the Czochralski technique. Although GdF3 and YbF3 both present a high-temperature phase transition, the mixed compound Gd0.81Yb0.19F3 maintains its crystallographic structure upon cooling to room temperature. Taking into account that both Gd3+ and Yb3+ ions are distributed randomly on a single site (Wyckoff position 4c), this is attributed to a mean cationic radius coincident with that of the Tb3+ ion, so that the stability of the crystal structure resembles that of TbF3. The grown crystal melts noncongruently at 1413 K, it is transparent and colourless, and it has a high density.

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References (9)

Publisher
International Union of Crystallography
Copyright
Copyright (c) 2011 International Union of Crystallography
ISSN
0108-2701
eISSN
1600-5759
DOI
10.1107/S0108270110049851
pmid
21285491
Publisher site
See Article on Publisher Site

Abstract

A new gadolinium ytterbium trifluoride has been grown for the first time by the Czochralski technique. Although GdF3 and YbF3 both present a high-temperature phase transition, the mixed compound Gd0.81Yb0.19F3 maintains its crystallographic structure upon cooling to room temperature. Taking into account that both Gd3+ and Yb3+ ions are distributed randomly on a single site (Wyckoff position 4c), this is attributed to a mean cationic radius coincident with that of the Tb3+ ion, so that the stability of the crystal structure resembles that of TbF3. The grown crystal melts noncongruently at 1413 K, it is transparent and colourless, and it has a high density.

Journal

Acta Crystallographica Section C: Crystal Structure CommunicationsInternational Union of Crystallography

Published: Jan 7, 2011

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