EFFECT OF ELECTRON-BOMBARDMENT ON THE ELECTRICAL-PROPERTIES OF PB1-XSNXTE(IN) ALLOYSстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:The effect of bombardment by fast electrons followed by hydrostatic compression on the electrical properties of Pb1-xSnxTe[In] alloys has been studied. The electron energy was E = 6 MeV, and the bombardment dose PHI less-than-or-equal-to 7.7 . 10(17) cm-2 . The bombardment was carried out at 300 K. The hydrostatic compression reached pressures P less-than-or-equal-to 15 kbar. The properties were measured while external radiation was screened out and also during controlled illumination by a thermal IR source. The results show that the electron bombardment has essentially no effect on the electrical properties of the alloys, the magnitude of the steady-state photoconductivity, or the height (W) of the barrier between localized and band states in these alloys. The results are explained on the basis of a model energy spectrum proposed previously for undoped Pb1-xSnxTe alloys bombarded by electrons. That model assumes a rigid stabilization of the Fermi level by an indium impurity level in the test samples.