کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1609163 | 1516258 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Birefringence of Cu2ZnSiSe4 single crystals
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
In Cu2ZnSiSe4 single crystals an interference spectra of the Fabry-Perot type due to observed birefringence were studied and spectral dependence of the refractive index n|| (E || c) and n⥠(E â¥Â c), which intersect at isotropic wavelength λ0 = 622 nm (300 K) and 605 nm (10 K) were defined. The spectral dependence of În = nâ¥-n|| in the short-wave and long-wave side of the wavelength λ0 was determined. It was found that when λ > λ0 În is negative and when λ < λ0 În is positive. Wavelength λ0 shifts as the temperature decreases toward shorter wavelengths. Phases of the n|| and n⥠light waves in λ > λ0 and λ < λ0 are different. At a wavelength of 538 nm (10 K) În has a maximum. Absorption coefficient in the fringes varies up to 102-103 times.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 635, 25 June 2015, Pages 188-193
Journal: Journal of Alloys and Compounds - Volume 635, 25 June 2015, Pages 188-193
نویسندگان
N.N. Syrbu, V. Zalamai, M. Guc, S. Levcenko, A. Dorogan, E. Arushanov,