Effect of Fe alloying on the structural, optical, electrical and magnetic properties of spray-deposited CuO thin films

被引：0

作者：

D. Paul Joseph

C. Venkateswaran

S. Sambasivam

Byung Chun Choi

机构：

[1] University of Madras,Materials Science Center, Department of Nuclear Physics

[2] Pukyong National University,Department of Physics

来源：

Journal of the Korean Physical Society | 2012年 / 61卷

关键词：

Thin films; CuO; Indirect band-gap; Sheet resistance; Hysteresis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Pure CuO and CuO:Fe (10%) thin films were spray deposited on glass, silicon and quartz substrates at 500 °C. XRD patterns confirmed a monoclinic structure with cubic CuFe2O4 impurities. Surface morphology smoothed out on doping with Fe. The direct and the indirect band gaps of pure CuO and CuO:Fe (10%) films estimated from the spectral transmittance data indicated blue and red shifts respectively. X-ray photoelectron spectroscopy revealed the charge states of the elements. The activation energy for conduction was reduced on doping with Fe as estimated from an Arrhenius plot of the temperature-dependent resistivity. The magnetization of the CuO:Fe (10%) films at 300 K showed a hysteresis behavior with large coercivity. The large variation in the coercivity of the films due to pinned-type magnetic behavior may be useful for multilayer switching device applications.

引用

页码：449 / 454

页数：5

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