High-temperature Xray diffraction and differential scanning calorimetry are used to study the features of structural changes in NdSr2Mn2O7+δ complex oxide at temperatures from room to 1150 °C. Structural calculations by the Rietveld method establish a relationship between anomalies in the temperature dependences of unit cell parameters and in the DSC curves with changes in the lengths of bonds between Mn and Nd, Sr cations and oxygen atoms.

中文翻译：

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温度对 NdSr2Mn2O7+δ 复合氧化物结构的影响

高温X射线衍射和差示扫描量热法用于研究NdSr2Mn2O7+δ复合氧化物在室温至1150°C温度下的结构变化特征。Rietveld 方法的结构计算建立了晶胞参数的温度依赖性异常与 DSC 曲线中的异常与 Mn 和 Nd、Sr 阳离子和氧原子之间的键长变化之间的关系。