UDK 539.21:537.86 Doi: 10.31772/2712-8970-2021-22-1-178-193
Effect of electron-phonon interaction on transport properties in TmxMn1-xS
Aplesnin S. S., Zelenov F. V., Mashkov P. P.
Reshetnev Siberian State University of Science and Technology; 31, Krasnoiarskii Rabochi Prospekt, Krasnoyarsk, 660037, Russian Federation
In solid solutions TmxMn1-xS, based on measurements of IR spectra and thermal expansion coefficient in the temperature range 80–500 K, the temperatures of sample deformation and disappearance of the absorption intensity of IR spectra at some frequencies are established. Anomalies in the temperature behavior of the electrical resistance are found, the sign of the current carriers and the mobility are determined from the Hall coefficient. The correlation between the temperatures of coefficient of electrical resistance and lattice deformation has been determined. A model of lattice polarons is proposed. The spectrum of electronic excitations and the density of electronic states in the interaction of electrons with flexural and tensile modes of the octahedron are calculated in the random phase approximation.
Keywords: manganese sulfides, IR spectra, thermal expansion coefficient, electrical resistance, polarons, electron density of states.
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Aplesnin Sergey Stepanovich – Dr. Sc., Professor, Reshetnev Siberian State University of Science and Technology. E-mail: aplesnin@sibsau.ru, apl@iph.krasn.ru.
Zelenov Fyodor Vladimirivich – graduate student, Reshetnev Siberian State University of Science and Technology. E-mail: fyodor.zelenov@yandex.ru.
Mashkov Pavel Pavlovich – PhD., Reshetnev Siberian State University of Science and Technology. E-mail: mpp113@yandex.ru.


  Effect of electron-phonon interaction on transport properties in TmxMn1-xS