Growth and optical characterizations of (Ba0.32Sr0.68)5Nb4O15 crystal |
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| Authors: | Guojian Wang Xiumei Han Mingjun Song Guofu Wang Xifa Long |
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| Affiliation: | aFujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China;bGraduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | (Ba0.32Sr0.68)5Nb4O15 crystal with sizes of Ø 17 × 35 mm was grown successfully by Czochralski technique method. The thermal anisotropy was discussed. The principal coefficients of thermal expansion along (100), (010), (001) directions were precisely measured to be 1.308 × 10− 5, 1.288 × 10− 5, 1.478 × 10− 5 K− 1, respectively. Its optical transparency range has been measured and found to span from 323 to 5500 nm. The bands present in the IR spectra were identified and assigned to the corresponding vibration modes of NbO6 anions. |
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| Keywords: | (Ba0.32Sr0.68)5Nb4O15 Crystal growth Thermal properties Optical properties |
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