کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5492181 | 1525143 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Excitonic polaritons of zinc diarsenide single crystals
ترجمه فارسی عنوان
پلاریونهای اکسیونیونی تک بلورهای دیارسنید روی
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کلمات کلیدی
ترکیب نیمه هادی، اکسیتون-پلاریوتون، طیف بازتاب و انتقال، سطوح اکسیتونی،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
چکیده انگلیسی
Excitonic polaritons of ZnAs2 single crystals had been investigated. Parameters of singlet excitons with Ð2¯(z) symmetry and orthoexcitons 2Ð1¯(y)+Ð2¯(x) had been determined. Spectral dependencies of ordinary and extraordinary dispersion of refractive index had been calculated using interferential reflection and transmittance spectra. It was shown, that A excitonic series were due to hole (V1) and electron (C1) bands. The values of effective masses of electrons (mc*=0.10 m0) and holes (mv1*=0.89 m0) had been estimated. It was revealed that the hole mass mv1* changes from 1.03 m0 to 0.55 m0 at temperature increasing from 10 K up to 230 K and that the electron mass mc* does not depend on temperature. The integral absorption A (eV cmâ1) of the states n=1, 2 and 3 of Ð2¯(z) excitons depends on the Anânâ3 equality, which it is characteristic for S-type excitonic functions. Temperature dependences of the integral absorption of ground states for Ð2¯(z) and Ð2¯(Ñ
) excitons differ. The ground states of B and C excitons formed by V3 - C1 and V4 - C1 bands and its parameters had been determined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 506, 1 February 2017, Pages 183-191
Journal: Physica B: Condensed Matter - Volume 506, 1 February 2017, Pages 183-191
نویسندگان
N.N. Syrbu, I.G. Stamov, V.V. Zalamai, A. Dorogan,