Flux growth at 1230 °C of cubic Tb2O3 single crystals and characterization of their optical and magnetic properties (original) (raw)
* Corresponding authors
a CNRS, Université de Bordeaux, ICMCB, UPR 9048, 87 avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France
E-mail: matias.velazquez@icmcb-bordeaux.cnrs.fr
b Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-Université de Bourgogne, Faculté des Sciences Mirande, 9 avenue Alain Savary, BP 47 870, 21078 Dijon cedex, France
c FEE-GmbH, Struthstrasse 2, 55743 Idar-Oberstein, Germany
Abstract
In this work, we present the first crystal growth of cubic Tb2O3 single crystals by a controlled atmosphere flux method which uses a heavy metal free solvent working at less than half the melting temperature of this sesquioxide. Cubic millimeter-sized crystals extracted from as-grown boules are phase (powder XRD) and chemically (GDMS) pure and exhibit a Verdet constant in the visible and near-infrared spectral ranges, which is at least three times higher than that of a commercial Tb3Ga5O12 (TGG) crystal. The 1.36 mm thick crystals display a transmission coefficient higher than 77% over the 525 nm–1.38 μm spectral range. The absorption spectrum, magnetic susceptibility and specific heat measurements on the single crystals confirm the absence of detectable Tb4+ cations and other impurities.
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Article information
DOI
https://doi.org/10.1039/C4CE02006E
Article type
Communication
Submitted
02 Oct 2014
Accepted
17 Oct 2014
First published
30 Oct 2014
Download Citation
CrystEngComm, 2015,17, 492-497
Permissions
Flux growth at 1230 °C of cubic Tb2O3 single crystals and characterization of their optical and magnetic properties
P. Veber, M. Velázquez, G. Gadret, D. Rytz, M. Peltz and R. Decourt,CrystEngComm, 2015, 17, 492DOI: 10.1039/C4CE02006E
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