Far infrared reflectivity spectra of single crystal PbTe samples doped with 0.2 at% Fe were measured in the temperature range between 10 K and 300 K. These spectra show very sharp and narrow dips below 120 cm(-1). The experimental data were numerically analyzed using a fitting procedure based on the plasmon-phonon interaction model. Two local modes were observed. The first one was noted between 130 cm(-1) and 170 cm(-1) depending on the temperature and the second more frequency stable one was noted at about 230 cm(-1).
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Chen, Zhong
Li, Decong
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Yunnan Open Univ, Photoelect Engn Coll, Kunming 650092, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Li, Decong
Deng, Shuping
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Deng, Shuping
Tang, Yu
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Tang, Yu
Sun, Luqi
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Sun, Luqi
Liu, Wenting
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Liu, Wenting
Shen, Lanxian
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Shen, Lanxian
Yang, Peizhi
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China
Yang, Peizhi
Deng, Shukang
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Yunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R ChinaYunnan Normal Univ, Educ Minist, Key Lab Renewable Energy Adv Mat & Mfg Technol, Kunming 650500, Yunnan, Peoples R China