| Article |
|---|
| Article name |
Temperature Dependence of Electrical Conductivity in Crystals Bi2Te^ — A&2TA3 |
| Authors |
Stepanov N.P. Doctor of Physics and Mathematics, np-stepanov@mail.ru |
| Bibliographic description |
Stepanov N. P. Temperature Dependence of Electrical Conductivity in Crystals B12Tез — Sb2Te3 // Scholarly Notes of Transbaikal State University. Series Physics, Mathematics, Engineering, Technology. 2018. Vol. 13, No. 4. PP. 127-132. DOI: 10.21209/2308-8761-2018- 13-4-127-132. |
| Section |
MATHEMATICAL MODELS. EXPERIMENT |
| UDK |
538.9 |
| DOI |
10.21209/2308-8761-2018-13-4-127-132 |
| Article type |
|
| Annotation |
In semiconductor materials Bi2Te3 — Sb2Te3, in which the width of the forbidden band is comparable to the plasmon energy Eg ps Ep, an anomalous increase in the electrical conductivity is observed in the low-temperature region. The change in the permittivity and the effective mass of free charge carriers, which occurs at higher temperatures, leads to a decrease in the plasmon energy, a decrease in the intensity of plasmon generation, a concentration of free charge carriers, and electrical conductivity.
|
| Key words |
semiconductor materials Bi2Tes~Sb2Tes, electrical conductivity, concentration of free charge carriers |
| Article information |
|
| References |
1. Anizotropiya plazmennogo otrazheniya tvyordyh rastvorov (BixSbi-x)Tes(0 < x < 1) v diapazone temperatur ot 78 do 293K / N. P. Stepanov [i dr.] j j Optika i spektroskopiya. 2011. T. Ill, № 6. S. 955-961.
2. Gol’cman В. M., Kudinov V. A., Smirnov I. A. Poluprovodnikovye termoehlektricheskie materialy na osnove Bi2Te3. M.: Nauka, 1972. 114 s.
3. Ivanova L. D., Granatkina YU. V. Termoehlektricheskie svojstva monokristallov tvyordyh rastvorov sistemy (BixSbi-x)Tes v oblasti temperatur 100-700K j j Izvestiya AN SSSR. Ser. Neorganicheskie materialy. 2000. T. 36, № 7. S. 810-816.
4. KitteP Ch. Vvedenie v fiziku tvyordogo tela. M.: Nauka, 1978. 227 s.
5. Kudryashov A. A. Vliyanie legirovaniya na termoehlektricheskie svojstva i ehffekt SHubnikova - de Gaaza tvyordyh rastvorov telluridov i selenidov vismuta i sur’my: dis. ... kand. fiz.-mat. nauk: 01.04.09. M., 2016. 101 s.
6. Kudryasyov A. A., Kulbachinskii V. A., Kytin V. G. Influence if Sn on the thermoelectric properties of (BixSb\\-x)Te3 single crystals // J. Solid State Chemistry. 2012. Vol. 193. Pp. 83— 88. |
| Full article | Temperature Dependence of Electrical Conductivity in Crystals Bi2Te^ — A&2TA3 |
