Features of the Electrical-Conductivity Mechanism in γ-Irradiated TlInSe2 Single Crystals under Hydrostatic Pressure

被引:3
|
作者
Madatov, R. S. [1 ,2 ]
Gasimov, Sh G. [3 ]
Babayev, S. S. [3 ]
Alekperov, A. S. [4 ]
Movsumova, I. M. [5 ]
Jabarov, S. H. [1 ,4 ]
机构
[1] Azerbaijan Natl Acad Sci, Inst Radiat Problems, AZ-1143 Baku, Azerbaijan
[2] Natl Aviat Acad, AZ-1045 Baku, Azerbaijan
[3] Azerbaijan Natl Acad Sci, Inst Phys, AZ-1143 Baku, Azerbaijan
[4] Azerbaijan State Pedag Univ, AZ-1000 Baku, Azerbaijan
[5] Ganja State Univ, AZ-2001 Ganja, Azerbaijan
关键词
hydrostatic pressure; electrical conductivity; chain single crystals; gamma-irradiation; radiation-induced defects; baric dependence; ELECTRONIC-PROPERTIES; SEMICONDUCTORS; ANISOTROPY; LEVEL; GASE;
D O I
10.1134/S1063782620100206
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The effect of hydrostatic pressure to 10 kbar on the conductivity of gamma-irradiated chain TlInSe2 single crystals with a resistivity of similar to 10(8) Omega cm is studied. It is found that the observed conductivity anomalies of TlInSe2 samples irradiated at doses of D < 100 krad and D > 100 krad are associated with the ordered transformation of defects including interstitial cations and anions. The nature of the anomalous change and pressure dependences of the resistivity sigma(P) in the irradiated samples suggest that pressure causes local energy levels due to macroscopic clusters of radiation-induced defects, with the result that the Fermi-level energy and carrier concentration change.
引用
收藏
页码:1180 / 1184
页数:5
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