Abstract
The results of investigations of the temperature coefficients of the parameters of the 127I NQR spectrum of the (BiI3)1–x (PbI2) x mixed layered semiconductor in the temperature range 77–150 K are reported. It is shown that, at low PbI2 contents, x ≤ 0.08, the temperature coefficients of the quadrupole coupling constants and asymmetry parameter for 127I nuclei remain unchanged, while at x = 0.20 and T = 77 K, the NQR spectrum undergoes significant changes. Based on the measurements performed, it is concluded that, at PbI2 contents of x ≤ 0.08, the quasi-two-dimensional pattern of the vibrational states persist.
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Original Russian Text © A.I. Barabash, I.G. Vertegel, E.D. Chesnokov, A.I. Ovcharenko, Yu.P. Gnatenko, 2015, published in Khimicheskaya Fizika, 2015, Vol. 34, No. 9, pp. 3–6.
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Barabash, A.I., Vertegel, I.G., Chesnokov, E.D. et al. Temperature and concentration dependence of the parameters of the 127I NQR spectrum of the (BiI3)1–x (PbI2) x mixed layered semiconductor. Russ. J. Phys. Chem. B 9, 681–683 (2015). https://doi.org/10.1134/S1990793115050024
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DOI: https://doi.org/10.1134/S1990793115050024