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This article is cited in 11 scientific papers (total in 11 papers)
Semiconductors
Study of electrical and thermoelecrical properties of sulfides Tm$_{x}$Mn$_{1-x}$S
S. S. Aplesninab, O. B. Romanovaab, A. I. Galyasc, V. V. Sokolovd a L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk
b M. F. Reshetnev Siberian State Aerospace University
c Scientific-Practical Materials Research Centre of NAS of Belarus, Minsk, Belarus
d Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, Novosibirsk
Abstract:
Variable-valence Tm$_{x}$Mn$_{1-x}$S compounds have been synthesized and their structural, electrical, and thermoelectrical properties have been studied in the temperature range of 80–1100 K. The regions of existence of solid solutions of sulfides Tm$_{x}$Mn$_{1-x}$S with the NaCl-type fcc lattice have been determined. It has been found that, as thulium ions are substituted for manganese cations, the electrical resistivity increases, and the lattice parameter increases more sharply than that corresponding to the Vegard’s law. The study of the temperature dependences of the thermopower coefficient has revealed that the current carrier sign is retained to 500 K for all the substitution concentrations, and the charge carrier type changes from the hole type to the electron type with variations in the temperature. The experimental data have been explained in terms of the exciton model.
Keywords:
Thulium, Current Carrier, Manganese Sulfide, Variable Valence, Conduction Band Bottom.
Received: 02.06.2015
Citation:
S. S. Aplesnin, O. B. Romanova, A. I. Galyas, V. V. Sokolov, “Study of electrical and thermoelecrical properties of sulfides Tm$_{x}$Mn$_{1-x}$S”, Fizika Tverdogo Tela, 58:1 (2016), 21–26; Phys. Solid State, 58:1 (2016), 19–24
Linking options:
https://www.mathnet.ru/eng/ftt10101 https://www.mathnet.ru/eng/ftt/v58/i1/p21
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