Browsing by Author "Korkmaz, F."

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Compositional Dependence of Optical Modes Frequencies in T1ga_x< Layered Mixed Crystals (0 ≤ x ≤ 1)
(Polish Acad Sciences inst Physics, 2014) Isik, M.; Gasanly, N. M.; Korkmaz, F.; Department of Electrical & Electronics Engineering
The infrared transmittance and Raman scattering spectra in TlGaxIn1-xS2 (0 <= x <= 1) layered mixed crystals grown by the Bridgman method were studied in the frequency ranges of 400-2000 and 250-400 cm(-1), respectively. The bands observed at room temperature in IR transmittance spectra of TlGaxIn1-xS2 were interpreted in terms of multiphonon absorption processes. The dependences of the frequencies of IR- and Raman-active modes on the composition of TlGaxIn1-xS2 mixed crystals were also established. The structural characterization of the mixed crystals was investigated by means of X-ray diffraction measurements and compositional dependence of lattice parameters was revealed.
Citation - Scopus: 1
Infrared and Raman Scattering Spectra of Layered Structured Ga₃inse_{4< Crystals}
(Elsevier Science Bv, 2013) Isik, M.; Gasanly, N. M.; Korkmaz, F.; Department of Electrical & Electronics Engineering
The infrared reflectivity and transmittance and Raman scattering in Ga3InSe4 layered crystals were investigated in the frequency ranges of 100-400, 400-4000 and 25-500 cm(-1). The refractive and absorption indices, the frequencies of transverse and longitudinal optical modes, high- and low-frequency dielectric constants were obtained from the analysis of the IR reflectivity spectra. The bands observed in IR transmittance spectra were interpreted in terms of two-phonon absorption processes. (C) 2012 Elsevier B.V. All rights reserved.
Citation - WoS: 9
Citation - Scopus: 8
Multiphonon Absorption Processes in Layered Structured Tlgas₂, Tlins₂ and Tlgase₂ Single Crystals
(Elsevier Science Bv, 2013) Isik, M.; Gasanly, N. M.; Korkmaz, F.; Department of Electrical & Electronics Engineering
The infrared transmittance and Raman scattering spectra in TlGaS2, TlInS2 and TlGaSe2 layered single crystals grown by Bridgman method were studied in the frequency ranges of 400-1500 and 10-400 cm(-1), respectively. Three, three and five bands observed at room temperature in IR transmittance spectra of TlGaS2, TlInS2 and TlGaSe2, respectively, were interpreted in terms of multiphonon absorption processes. (C) 2013 Elsevier By. All rights reserved.
Ph-Dependent Conformational Changes and Thermal Stability of Outer Membrane Protein G Mutants by Fourier Transform Infrared Spectroscopy
(Wiley-blackwell, 2016) Yilmaz, I.; Yildiz, O.; Korkmaz, F.
[No Abstract Available]