Optical and magnetic properties of PbTe(Co)

被引：0
|
作者：
Romcevic, N. [1 ]
Trajic, J. [1 ]
Romcevic, M. [1 ]
Stojanovic, D. [1 ]
Kuznetsova, T. A. [2 ]
Khokhlov, D. R. [2 ]
Dobrowolski, W. D. [3 ]
机构：
[1] Inst Phys, Belgrade 11080, Serbia
[2] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
[3] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland
来源：
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2010年 / 4卷 / 04期
关键词：
Semiconductors; Crystal growth; Phonons; Plasmon - phonon interaction; IMPURITY LOCAL MODES; PHONON; CONDUCTIVITY; SPECTROSCOPY; SPECTRA; PLASMA; STATES;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Far - infrared and magnetic properties of Co doped PbTe (ZCo = 4 x 10(19) at./cm(3)) single crystal are investigated in a broad range of temperature and magnetic fields. Far - infrared reflection spectra were analyzed using a fitting procedure based on the modified plasmon - ionised impurity - phonon interaction model. Together with the strong coupling we obtained three local modes of Co at about 125, 190 and 275 cm(-1), which corresponded to the impurity atoms in different valence states. A magnetic measurement shows that doping PbTe by Co causes appearance of paramagnetic properties
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页码：470 / 475
页数：6
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