کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5442990 | 1510769 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Growth and thermophysical properties of magneto-optical crystal TbVO4
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Growth and thermophysical properties of magneto-optical crystal TbVO4 Growth and thermophysical properties of magneto-optical crystal TbVO4](/preview/png/5442990.png)
چکیده انگلیسی
TbVO4 single crystal with high transmittance has been successfully grown by Czochralski method under highly pure nitrogen atmosphere, which could reduce the loss of growth crucible. The structure of as-grown crystal was verified by X-ray powder diffraction. The refraction indices measurement showed the crystal was an optical uniaxial crystal with large birefringence. The absorption coefficient was calculated taking account into transmittance and reflection, and the results indicated TbVO4 crystal had a low absorption at wavelength range of 440-1100 nm. Thermal properties of TbVO4 crystal were also measured. The specific heat is 0.472 J gâ1 Kâ1 at room temperature. The thermal conductivities at room temperature are 7.216 W mâ1 kâ1 and 10.305 W mâ1 kâ1along the a and c directions respectively. XPS spectra showed there were two states of V which demonstrated oxygen vacancies existed in as-grown crystal. But Verdet constant of the crystal is about 60 rad Tâ1 mâ1, and the figure of merit at 1064 nm is 28.9°/dB at 1.2 T, which is about twice than that of TGG. All the results indicate TbVO4 crystal is a candidate to the commercial magneto-optical material at visible and near-infrared regions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 65, March 2017, Pages 106-111
Journal: Optical Materials - Volume 65, March 2017, Pages 106-111
نویسندگان
Yangyang Zhu, Heng Tu, Lisha Jia, Yinchao Yue, Ying Zhao, Zhanggui Hu,