at Google ScholarTitle data
Zhong, Degao ; Teng, Bing ; Kong, Weijin ; Zhang, Shiming ; Li, Yuyi ; Li, Jianhong ; Yang, Liting ; Cao, Lifeng ; van Smaalen, Sander:
Growth, structure, defects and polarized absorption spectral properties of Er:Yb:YCa₄O(BO₃)₃ crystals.
In: Journal of Solid State Chemistry.
Vol. 233
(2016)
.
- pp. 120-124.
ISSN 0022-4596
DOI: https://doi.org/10.1016/j.jssc.2015.10.021
Abstract in another language
Abstract YCa₄O(BO₃)₃ (YCOB) crystals co-doped with 3 at Er3+ and 20 at Yb3+ were successfully grown by the Czochralski method. X-ray powder diffraction (XRPD) results show that the as-grown Er:Yb:YCOB crystal belongs to the monoclinic system with space group Cm. And the lattice parameters are a=8.076(8) Å, b=16.023(7) Å, c=3.528(4) Å and β=101.15(4)°. Crystal defects were revealed by chemical etching experiments. The density of etch pits, attributed to dislocations and observed on (010) planes, was found to be not uniform along the crystal diameter. The detailed polarized absorption spectra were measured. The polarized absorption cross sections at 977 nm are 1.01×10−20, 1.22×10−20 and 1.05×10−20 cm2 for E//X, E//Y and E//Z, respectively. And the polarized absorption cross sections at 1538 nm is about 1.86×10−20 cm2 for both E//X and E//Z, but for E//Y the result is 1.03×10−20 cm2, which is much smaller. The relationship between the crystal structure and absorption spectra was discussed.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Keywords: | Crystal defects |
| Institutions of the University: | Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen Profile Fields > Advanced Fields > Advanced Materials Profile Fields Profile Fields > Advanced Fields |
| Result of work at the UBT: | Yes |
| DDC Subjects: | 500 Science > 500 Natural sciences 500 Science > 530 Physics |
| Date Deposited: | 01 Dec 2016 08:08 |
| Last Modified: | 14 Jul 2022 11:37 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/35233 |