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钇铝石榴石上Mn-Co-Ni-O薄膜的制备及其相关特性表征

Keywords: 热敏电阻 钇铝石榴石 红外吸收

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Abstract:

利用化学溶液法在具有良好导热性和红外透过性的钇铝石榴石单晶衬底上成功制备了具有单一尖晶石相的Mn1.56Co0.96Ni0.48O4薄膜.傅里叶红外光谱测试表明薄膜在2.5~5μm波段具有明显的吸收带.通过研究其电阻-温度关系并利用最近邻跳跃模型进行拟合, 得到薄膜的特征温度约为2530K, 室温下的负电阻温度系数约为-3.66%K-1

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