Raman Spectra of TlGaxIn1−x S2 Layer Solid Solutions

Date

1980-01-01

Author

Hasanlı, Nızamı
Ragimov, A.S.
Tagirov, V.I.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Subject Keywords

Electronic, Optical and Magnetic Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/39436

Journal

physica status solidi (b)

DOI

https://doi.org/10.1002/pssb.2221010249

Collections

Department of Physics, Article

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RAMAN-SPECTROSCOPY OF SOFT AND RIGID MODES IN FERROELECTRIC TLINS2 BURLAKOV, VM; RYABOV, AP; YAKHEEV, MP; VINOGRADOV, EA; MELNIK, NN; Hasanlı, Nızamı (Wiley, 1989-06-01) Low‐frequency Raman spectra of a TlInS2 single crystal in the vicinity of a ferroelectric phase transition are reported. In the ferroelectric phase a soft mode interacting with some rigid modes is observed. The temperature dependence of the soft mode frequency is found to be proportional to (Tc – T)1/2. An unusual behaviour of the rigid mode (ω = 20 cm−1) is observed. This fact is interpreted in terms of inherent lattice defects which cause nonhomogeneous broadening.
Raman Scattering in Pb(MoO4)x(WO4)1−x Mixed Crystals Efendiev, Sh.M.; Darvishov, N.G.; Nagiev, V.M.; Hasanlı, Nızamı; Gabrielyan, V.T.; Nikogosyan, N.S. (Wiley, 1982-01-01)
Photoelectronic, optical and electrical properties of TlInS2 single crystals Qasrawi, AF; Hasanlı, Nızamı (Wiley, 2003-09-01) To specify the donor energy levels in TlInS2 single crystals, the dark electrical resistivity, photoconductivity and Hall measurements were carried out in the temperature range of 100-400 K, 110-350 K and 170-400 K, respectively. The Hall measurements revealed that the crystals exhibit an anomalous behavior of Hall voltage by changing sign (from p-type to n-type conductivity) at 315 K. By means of the temperature dependence of dark electrical resistivity, Hall coefficient and photocurrent measurements the d...
Raman linewidths calculated as a function of temperature in NaNO(2) KARACALİ, HUSEYİN; Yurtseven, Hasan Hamit; Kiraci, Ali (Wiley, 2009-05-01) The temperature dependence of the damping constant is calculated for some Raman modes in NaNO(2) using the soft mode-hard mode coupling model and the energy fluctuation model. The damping constant is fitted to the measured Raman bandwidths of those modes, which is well described by the soft mode-hard mode coupling model. The values of the activation energy are extracted from the damping constant for the Raman modes, which are much greater than k(B)T(C) = 0.04 eV for NaNO(2) close to the transition temperatu...

Citation Formats

N. Hasanlı, A. S. Ragimov, and V. I. Tagirov, “Raman Spectra of TlGaxIn1−x S2 Layer Solid Solutions,” physica status solidi (b), pp. 0–0, 1980, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/39436.