Optical phonons in layer TIInSe2 single crystals

Date

1979-01-01

Author

Hasanlı, Nızamı
Dzhavadov, B.M.
Melnik, N.N.
Tagirov, V.I.
Vinogradov, E.A.

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Subject Keywords

Electronic, Optical and Magnetic Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/37520

Journal

physica status solidi (b)

DOI

https://doi.org/10.1002/pssb.2220920255

Collections

Department of Physics, Article

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OPTICAL PHONONS IN GAS1-XSEX LAYER MIXED-CRYSTALS Hasanlı, Nızamı; MELNIK, NN; RAGIMOV, AS (Wiley, 1983-01-01) Measurements are made of polarized Raman scattering and infrared reflection spectra of twenty two compositions of GaS1‐xSex layer mixed crystals grown by the Bridgman method. Besides the usual one‐mode and two‐mode behaviours of phonon modes, a number of more complex dependences characterized by the appearance of additional bands in the spectra of mixed crystals are observed. Their appearance is accounted for by the uncovering of the Brillouin zone due to the disturbance of the periodicity of the crystal la...
Optical polarization anisotropy in strained A-plane GaN films on R-plane sapphire Ghosh, Sandip; Misra, Pranob; Grahn, Holger T.; İmer, Muhsine Bilge; Nakamura, Shuji; DenBaars, Steven P.; Speck, James S. (Wiley, 2006-06-01) We have used polarized photoreflectance (PR) spectroscopy to study [1120]-oriented A-plane GaN films on R-plane sapphire substrates. For this type of films, the c-axis of GaN lies in the film plane. When the probe beam is polarized perpendicular to the c-axis, we observe a single feature in the PR spectrum, while two features at higher energies are observed for parallel polarization. Comparing the transition energies with the ones obtained by electronic band-structure calculations, we identify the observed ...
OPTICAL PHONONS AND STRUCTURE OF TLGAS2, TLGASE2, AND TLINS2 LAYER SINGLE-CRYSTALS Hasanlı, Nızamı; MELNIK, NN; RAGIMOV, AS; TAGIROV, VI (Wiley, 1983-01-01)
Optical constants of Tl4Ga3InSe8 layered single crystals Goksen, K.; Hasanlı, Nızamı (Elsevier BV, 2007-11-15) The optical properties of Tl(4)Ga(3)lnSe(8) layered single crystals have been studied by means of transmission and reflection measurements in the wavelength range of 500-1100 run. The analysis of the room temperature absorption data revealed the presence of both optical indirect and direct transitions with band gap energies of 1.94 and 2.20 eV, respectively. Transmission measurements carried out in the temperature range of 10-300 K revealed that the rate of change of the indirect band gap with temperature i...
Long‐Wave Optical Phonons in In6S7 Layer Crystals Hasanlı, Nızamı; Ragimov, A.S.; Tagirov, V.I.; Guseinov, R.E. (Wiley, 1981-01-01)

Citation Formats

N. Hasanlı, B. M. Dzhavadov, N. N. Melnik, V. I. Tagirov, and E. A. Vinogradov, “Optical phonons in layer TIInSe2 single crystals,” physica status solidi (b), pp. 0–0, 1979, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37520.