Preparation and conducting performance of LaNiO3/Ag film and its interface reaction |
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Authors: | Wenqing Yao |
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Affiliation: | Department of Chemistry, Tsinghua University, Beijing 100084, PR China |
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Abstract: | LaNiO3 thin film with perovskite structure was successfully prepared on Ag substrate via an amorphous heteronuclear complex LaNi(DTPA)·6H2O as a precursor. The influences of precursor concentration and PEG additive with different molecular weight on the texture of the film were carefully studied. The interface states of LaNiO3/Ag film were revealed by using AES analysis. The effect of annealing time on the interface diffusion of the LaNiO3/Ag film was shown by using AES depth profile spectrum. The relationship between the electric resistivity of the film and the environmental temperature was measured by using four-probe method. The results showed the film had good metallic conductivity from 300 down to 77 K. |
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Keywords: | LaNiO3/Ag film Interface Morphology AES Electric resistivity |
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