PHOTOCONDUCTIVITY IN N-TYPE BETA-FESI2 SINGLE-CRYSTALS

被引：63

作者：

ARUSHANOV, E ^{[1
]}

BUCHER, E ^{[1
]}

KLOC, C ^{[1
]}

KULIKOVA, O ^{[1
]}

KULYUK, L ^{[1
]}

SIMINEL, A ^{[1
]}

机构：

[1] MOLDAVIAN ACAD SCI,INST APPL PHYS,KISHINEV 277028,MOLDOVA

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.52.20

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photoconductivity in -FeSi2 single crystals was observed in the temperature range of 80 250 K. The energy gap, 0.89 eV at 85 K, and its temperature dependence were determined. The values of the average phonon energy, 55 meV, and the electron-phonon coupling parameter, S=2.75, were evaluated. The observed quenching of photoconductivity is explained in assuming the two-center model. The donor and acceptor activation energy of 70 and 120 meV, respectively, as well as the hole mobility due to lattice scattering were determined. © 1995 The American Physical Society.

引用

页码：20 / 23

页数：4

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