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Anisotropic Impurity and Intrinsic Centres in CdHgTe:V Crystals

机译:CDHGTE中的各向异性杂质和内在中心:V晶体

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It was shown that for the V-doped Cd_(1-x)Hg_xTe (x=0.014 and x=0.037) crystals the anisotropic V~(2+) and V~(3+) centres had the trigonal, rhombohedral and tetragonal symmetry. The appearance of the trigonal centres may be caused by formation the complex impurity (V~(2+)(V~(3+))_(Cd )+ X_(Te)) centres, were X are the residual atoms of VII group atoms. The rhombohedral and tetragonal centres my be caused by the formation of the complex impurity (V~(2+)(V~(3+))_(Cd) + Z_(Cd)) centres (Z may be the Hg atoms), whose axes are oriented in the <110>- and <001>-directions, respectively. Photoinduced anisotropic centres and intrinsic defects were also observed and their nature and photoionization energy were determined.
机译:结果表明,对于V掺杂的CD_(1-x)Hg_xte(x = 0.014和x = 0.037),各向异性V〜(2+)和V〜(3+)中心具有三角形,菱形和四方对称性。 Trigonal中心的外观可能是由形成复杂杂质(V〜(2 +)(V〜(3 +))_(CD)+ X_(TE))中心引起的,是X是VII组的残留原子原子。我的菱形和四方中心是由复杂杂质的形成引起的(V〜(2 +)(V〜(3 +))_(CD)+ Z_(CD))中心(Z可以是HG原子),其轴分别定向在<110> - 和<001>中。还观察到光诱导的各向异性中心和内在缺陷,并确定其性质和光离子能量。

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