The Influence of <i>γ</i>-Irradiation on Thermoemf and Heat Conduction of Ln<sub>0.01</sub>Sn<sub>0.99</sub>Se (Ln - Pr, Tb, Er) Monocrystals

• 作者: Jahangir Islam Huseynov Tapdiq Aslan Jafarov
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 医学
• 关键词: Thermoemf Heat Conduction Rare-Earth Elements (REE) Thermal Resistance Γ-IRRADIATION Radiation-Induced Defects
• 年，卷（期）: 2014,（1）
• 页码范围: 1-5
• 页数: 5页
• 分类号: R73

摘要

Monocrystals are synthesized and grown according to Bridgman-Stockbarger method, and the influence of rare earth elements (REE) as well as of γ-irradiation on electrophysical properties of (SnSe)1-x - (SnSe)x (Ln - Pr, Tb, Er) alloy system is investigated. During transition from SnSe to (SnSe)1-x - (SnSe)x solid solutions, a partial compensation of charge carriers occurs and additional scattering centres appear. At low temperatures T after irradiation with γ-quanta, thermoemf in samples of p-type conduction becomes higher and decreases in those of n-type conduction. In addition, under the influence of γ-rays radiation, defects come into being causing a decrease in lattice heat conduction and a rise in electron heat conduction. REE impurities are supposed to be positioned among the points of crystal lattice during irradiation with γ-quanta and, moreover, Frenkel defects are formed.