Raman and Infrared Studies of AgIn5S8 and CuIn5S8 Single Crystals

Date

1993-01-01

Author

Hasanlı, Nızamı
Melnik, N.N.
Salamov, B.G.

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Subject Keywords

Electronic, Optical and Magnetic Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/44073

Journal

physica status solidi (b)

DOI

https://doi.org/10.1002/pssb.2221770126

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.
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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...
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Citation Formats

N. Hasanlı, N. N. Melnik, and B. G. Salamov, “Raman and Infrared Studies of AgIn5S8 and CuIn5S8 Single Crystals,” physica status solidi (b), pp. 0–0, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44073.