Microdefects in Te-Rich PbTe Bulk Crystal
WANG Geya, SHI Tiansheng, ZHANG Suying*
Shanghai Institute of Metallurgy, Academia Sinica, Shanghai 200050
* Shanghai Institute of Technical Physics, Academia Sinica, Shanghai 200083
Microdefects in Te-Rich PbTe Bulk Crystal
WANG Geya;SHI Tiansheng;ZHANG Suying*
Shanghai Institute of Metallurgy, Academia Sinica, Shanghai 200050
* Shanghai Institute of Technical Physics, Academia Sinica, Shanghai 200083
关键词 ：
61.72.-y ,
61.72.Ff
Abstract ： The microdefects in Te-rich PbTe coating material grown by Bridgman technique have been studied via transmission electron microscopy. The results indicate that the major microdefects in Te-rich PbTe crystal are plate-like defects lying on {100} plane and homogeneously distributed in the matrix with density about 1.7x1016 /cm3 . They are originated from the precipitation of native point defects in Te-rich PbTe which occured in the cooling and annealing process and presented in the form of plates consisting of Te anti-site atoms or interstitial Te atoms.
Key words ：
61.72.-y
61.72.Ff
出版日期: 1995-08-01
:
61.72.-y
(Defects and impurities in crystals; microstructure)
61.72.Ff
(Direct observation of dislocations and other defects (etch pits, decoration, electron microscopy, x-ray topography, etc.))
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1995, Vol. 12 
