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Zn_(1-x)Co_xS和Zn_(1-x)Ni_xS新吸收谱线的测量与分析

THE MEASUREMENT AND ANALYSIS OF NEW ABSORPTION LINES IN Zn_(1-x)Co_xS and Zn_(1-x)Ni_xS
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摘要 在12K和300K下测量了半磁半导体Zn_(0.095)Co_(0.05)S和Zn_(0.97)Ni_(0.03)S的吸收光谱,分别发现3个新的吸收峰。根据晶体场理论和群论分析结果,它们分别对应于Co^(2+)的~4A_2(F)→~2T_1(H)、~4A_2(F)→~2T_1(G)和~4A_2(F)→~2T_2(P)的跃迁吸收及Ni^(2+)的~3T_1(F)→~1A_1(G),~3T_1(F)→~1T_1(G)和~3T_1(F)→~1E(G)的跃迁吸收,并用晶体场理论分析了跃迁的选择定则和跃迁的相对强度。 The absorption spectra of Zn_(0.95)Co_(0.05)S and Zn_(0.97)Ni_(0.03)S have been measured at 300K and 12K. Three absorption peaks have been observed in Zn_(0.05)Co_(0.05)S and Zn_(0.97) Ni_(0.03)S, respectively, which are attributed to the transitions of ~4A_2(F)→~2T_1 (H), ~4A_2(F)→~2T_1(G) and ~4A_2(F)→~2T_2 (P) of Co^(2+) and the transitions of ~3T_1(F)→~1A_1(G), ~3T_1(F)→~1T_1(G) and ~3T_1(F)→~1E_1(G) of Ni^(2+), respectively, in the light of crystal field theory and group theory. In addition, the selection rule of transition and the transition intensity have been discussed by the crystal field theory.
出处 《红外研究》 CSCD 北大核心 1990年第3期207-214,共8页
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