title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð¸ ÑÑÑÐµÐºÑÐ° Ð¥Ð¾Ð»Ð»Ð° Ð² Ð¼Ð¾Ð½Ð¾ÑÐ¸Ð»Ð¸ÑÐ¸Ð´Ðµ ÐºÐ¾Ð±Ð°Ð»ÑÑÐ° Ð¸ ÑÐ¿Ð»Ð°Ð²Ð°Ñ Ð½Ð° ÐµÐ³Ð¾ Ð¾ÑÐ½Ð¾Ð²Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: The study of electrical conductivity and the Hall effect in cobalt monosilicide and alloys based on it
Creators: name: ÐÐ²ÑÐ¸Ð½Ð½Ð¸ÐºÐ¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¼Ð¾Ð½Ð¾ÑÐ¸Ð»Ð¸ÑÐ¸Ð´ ÐºÐ¾Ð±Ð°Ð»ÑÑÐ°
ÑÐ²ÐµÑÐ´ÑÐµ ÑÐ°ÑÑÐ²Ð¾ÑÑ
ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ Ð¥Ð¾Ð»Ð»Ð°
ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÑ
Ð·Ð¾Ð½Ð½Ð°Ñ ÑÑÑÑÐºÑÑÑÐ°
ÑÐµÑÐ¼Ð¾ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ñ
cobalt monosilicide
solid solutions
Hall coefficient
electric conductivity
band structure
thermoelectric materials

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð¸ ÑÑÑÐµÐºÑÐ° Ð¥Ð¾Ð»Ð»Ð° Ð² Ð¼Ð¾Ð½Ð¾ÑÐ¸Ð»Ð¸ÑÐ¸Ð´Ðµ ÐºÐ¾Ð±Ð°Ð»ÑÑÐ° (CoSi) Ð¸ ÑÐ²ÑÑÐ´ÑÑ ÑÐ°ÑÑÐ²Ð¾ÑÐ°Ñ Ñ Ð·Ð°Ð¼ÐµÑÐµÐ½Ð¸ÐµÐ¼ Ð°ÑÐ¾Ð¼Ð¾Ð² ÐºÐ¾Ð±Ð°Ð»ÑÑÐ° (Co) Ð½Ð° Ð½Ð¸ÐºÐµÐ»Ñ (Ni) Ð¸ Ð¶ÐµÐ»ÐµÐ·Ð¾ (Fe). Ð¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð·Ð¾Ð½Ð½Ð¾Ð¹ ÑÑÑÑÐºÑÑÑÑ CoSi Ð²ÑÑÐ²Ð¸Ð»Ð¸ Ð¾ÑÐ»Ð¸ÑÐ¸Ñ Ð¾Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸, Ð¾Ð±ÑÑÐ½Ð¾ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÐ¼Ð¾Ð¹ Ð´Ð»Ñ Ð¿Ð¾Ð»ÑÐ¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹, Ð² ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¾ Ð¿Ð°ÑÐ°Ð±Ð¾Ð»Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½ÑÑ Ð¸ Ð´ÑÑÐ¾ÑÐ½ÑÑ Ð·Ð¾Ð½ Ñ Ð½ÐµÐºÐ¾ÑÐ¾ÑÑÐ¼ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¼ Ð¿ÐµÑÐµÐºÑÑÑÐ¸ÐµÐ¼. ÐÑÐ»Ð¾ ÑÐ°ÐºÐ¶Ðµ ÑÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ Ð´Ð°Ð½Ð½ÑÐ¹ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð» Ð¾Ð±Ð»Ð°Ð´Ð°ÐµÑ Ð½ÐµÑÑÐ¸Ð²Ð¸Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐ¾Ð¿Ð¾Ð»Ð¾Ð³Ð¸ÐµÐ¹ Ð·Ð¾Ð½Ð½Ð¾Ð¹ ÑÑÑÑÐºÑÑÑÑ. Ð¦ÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½ÑÑ ÑÐ²Ð¾Ð¹ÑÑÐ², Ð° ÑÐ°ÐºÐ¶Ðµ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ Ð¸ Ð½Ð¾Ð²ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð¸Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½ÑÐµ Ð¸ ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÐ»ÐµÐºÑÑÐ¾Ð¿ÑÐ¾Ð²Ð¾Ð´Ð½Ð¾ÑÑÐ¸ Ð¸ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ° Ð¥Ð¾Ð»Ð»Ð° ÑÐºÐ°Ð·Ð°Ð½Ð½ÑÑ ÑÐ²ÑÑÐ´ÑÑ ÑÐ°ÑÑÐ²Ð¾ÑÐ¾Ð². ÐÐ·Ð¼ÐµÑÐµÐ½Ð¸Ðµ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½ÑÑ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐµÐ¹ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¾ÑÑ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ 100-800 Ð, ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ñ Ni Ð¸ Fe Ð² ÑÐ²ÑÑÐ´ÑÑ ÑÐ°ÑÑÐ²Ð¾ÑÐ°Ñ Ð´Ð¾ÑÑÐ¸Ð³Ð°Ð»Ð° 10%, ÑÐ°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ ÑÐ²ÑÑÐ´ÑÐµ ÑÐ°ÑÑÐ²Ð¾ÑÑ Ñ Ð´Ð²Ð¾Ð¹Ð½ÑÐ¼ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼. ÐÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÐ°ÑÑÑÑ Ð·Ð¾Ð½Ð½Ð¾Ð¹ ÑÑÑÑÐºÑÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð° Ð¿Ð¾ Ð¼ÐµÑÐ¾Ð´Ñ ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»Ð° ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¿Ð»Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð¼ Ð¿Ð°ÐºÐµÑÐµ QuantumEspresso. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐ¸ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ ÐºÐ¸Ð½ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð² Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð´Ð²ÑÐ·Ð¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¸ ÑÐ»ÐµÐºÑÑÐ¾Ð½-Ð½Ð¾Ð³Ð¾ ÑÐ¿ÐµÐºÑÑÐ°, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð· Ð¿ÐµÑÐ²ÑÑ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¾Ð². Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸, ÑÑÐ¾ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½ÑÑ ÑÐ²Ð¾Ð¹ÑÑÐ² ÑÐ²ÐµÑÐ´ÑÑ ÑÐ°ÑÑÐ²Ð¾ÑÐ¾Ð² Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ CoSi Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð°Ð´ÐµÐºÐ²Ð°ÑÐ½Ð¾ Ð¾Ð¿Ð¸ÑÐ°Ð½Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð½Ð¾Ð³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ ÑÐ¿ÐµÐºÑÑÐ° ÑÐ¾Ð»ÑÐºÐ¾ Ð¿ÑÐ¸ ÑÑÐµÑÐµ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸Ð¸.
description: This work is devoted to the study of electrical conductivity and the Hall effect in cobalt monosilicide (CoSi) and solid solutions with substitution of cobalt (Co) atoms for nickel (Ni) and iron (Fe). Recent studies of the band structure of CoSi revealed differences from the model commonly used for semimetallic compounds, in which several parabolic electron and hole bands with some energy overlap are considered. It was also found that this material has a non-trivial topology of the band structure. The aim of the work is an experimental study of transport properties, as well as an analysis of existing and new models for their description. As a result of the work, the temperature and concentration dependencies of the electrical conductivity and the Hall coefficient of the indicated solid solutions were obtained. The temperature dependencies were measured in the temperature range of 100-800 K, the concentration of Ni and Fe in solid solutions reached 10%, and solid solutions with double doping were also studied. The band structure of the material was calculated using density functional theory in the QuantumEspresso software package. The analysis of the possibility of describing kinetic coefficients using the two-band model and the electronic spectrum obtained from the first principles is carried out. The results of the work also showed that the main features of the transport properties of CoSi-based solid solutions can be adequately described using the calculated electronic spectrum only if the energy dependence of the relaxation time is taken into account.