CHARGE-TRANSFER IN LIQUID SEMICONDUCTORS - THE K-TE SYSTEM

被引:30
作者
FORTNER, J [1 ]
SABOUNGI, ML [1 ]
ENDERBY, JE [1 ]
机构
[1] UNIV BRISTOL,HH WILLS PHYS LAB,BRISTOL BS8 1TL,AVON,ENGLAND
关键词
D O I
10.1103/PhysRevLett.69.1415
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The neutron diffraction patterns of molten KxTe1-x alloys for x =0.12 and x =0.50 demonstrate the persistence of covalently bonded tellurium in the liquid. In the case of liquid K0.12Te0.88, the measured structure is dominated by the Te-Te contribution, and is remarkably similar to that of pure liquid tellurium. The equiatomic alloy K0.50Te0.50 is shown to contain mostly Te pairs which are identified with Zintl ions, Te2(2-). The presence of these ions explains the semiconducting behavior of these alloys deduced from recent electrical transport measurements.
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页码:1415 / 1418
页数:4
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