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Crystal growth of La2Hf2O7 by micro-pulling-down method using W crucible.
- Source :
-
Journal of Crystal Growth . Apr2022, Vol. 583, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- • La 2 Hf 2 O 7 crystals (m.p.: 2418 °C) were grown by the µ-PD method using a W crucible. • The La 2 Hf 2 O 7 grown at a rate of 2.00 mm/min had some cracks. • The La 2 Hf 2 O 7 grown at a rate of 0.07 mm/min was transparent without any cracks. • The LHO[0.07 mm/min] had a transmittance of over 70% in the range of 450–800 nm. • The XRC of the LHO[0.07 mm/min] showed a sharp peak with a FWHM of 138 arcsec. La 2 Hf 2 O 7 crystals with a melting point of ∼2418 °C were grown by the micro-pulling-down method using a W crucible and deoxygenated ZrO 2 insulators. A La 2 Hf 2 O 7 crystal grown at a rate of 0.07 mm/min (LHO[0.07 mm/min]) showed a high transparency without any visible cracks and inclusions, while a La 2 Hf 2 O 7 crystal grown at a rate of 2.00 mm/min had some cracks. The LHO[0.07 mm/min] crystal had a transmittance of over 70% in the wavelength range of 450–800 nm. The X-ray rocking curve of the LHO[0.07 mm/min] crystal showed a symmetric sharp peak with a full width at half maximum of 138 arcsec. The Laue image revealed that the grown crystals were single crystals. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00220248
- Volume :
- 583
- Database :
- Academic Search Index
- Journal :
- Journal of Crystal Growth
- Publication Type :
- Academic Journal
- Accession number :
- 155257894
- Full Text :
- https://doi.org/10.1016/j.jcrysgro.2022.126547