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首页> 外文期刊>Materials Science and Engineering. B, Solid-State Materials for Advanced Technology >Structural and magnetic characterization of Mn-doped ZnO films grown by spray pyrolysis method
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Structural and magnetic characterization of Mn-doped ZnO films grown by spray pyrolysis method

机译：喷雾热解法生长Mn掺杂ZnO薄膜的结构和磁性

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摘要

Mn-doped ZnO films on Si substrate could be grown by the spray pyrolysis method at 500 ℃ under an air atmosphere. Although the orientation (0002) peak intensity became small with increasing Mn concentration, the lattice constant of the c-axis expanded monotonously with increasing Mn concentration. This indicated that the Mn ion was understood to have occupied the Zn site without changing wurtzite structure. Furthermore, the magnetic signal which increased with decreasing temperature was presumably due to superparamagnetic clusters in the ZnO film because (x - x_0)~(-1), x and x_0 represented the susceptibility and the temperature-independent paramagnetic contribution from the substrate, respectively, could be well fitted with the Curie law, giving almost zero Curie temperature.
机译：硅衬底上的Mn掺杂ZnO薄膜可以在500℃的大气气氛中通过喷雾热解法生长。尽管取向（0002）峰强度随着Mn浓度的增加而变小，但是c轴的晶格常数随Mn浓度的增加而单调膨胀。这表明Mn离子被认为占据了Zn位点而没有改变纤锌矿结构。此外，随温度降低而增加的磁信号可能是由于ZnO薄膜中的超顺磁性簇引起的，因为（x-x_0）〜（-1），x和x_0分别表示来自基板的磁化率和与温度无关的顺磁成分，可以很好地符合居里定律，居里温度几乎为零。

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