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Structural, electrical, and magnetic properties of bulk Nd1-xSrxNiO3 (x = 0–0.3)
Solid State Communications ( IF 2.1 ) Pub Date : 2021-06-28 , DOI: 10.1016/j.ssc.2021.114420
Hongwei Yang , Zhiwei Wen , Jun Shu , Yajing Cui , Yongliang Chen , Yong Zhao

The single-phase Nd1-xSrxNiO3 (x = 0–0.3) polycrystalline samples were successfully synthesized, and the structure, resistivity, and magnetic property were investigated. All of samples were well indexed to an orthorhombic structure with Pnma space group. With increasing Sr concentration x, the lattice parameter a decreased, the lattice parameter b and c increased, the obtained unit-cell volume systematically increased due to the larger ion radius of Sr2+ than Nd3+. Sr partial substitution for Nd suppressed the metal-insulator and antiferromagnetic transition until x = 0.2. However, as the Sr content increased to 0.3, some abnormal phenomena were observed. The present work shows that physical properties are correlated with the evolution of perovskite tolerance factor in Nd1-xSrxNiO3 system.



中文翻译:

块状 Nd 1- x Sr x NiO 3 ( x = 0–0.3) 的结构、电学和磁学特性

 成功合成了单相Nd 1- x Sr x NiO 3 ( x = 0–0.3) 多晶样品,并对结构、电阻率和磁性能进行了研究。所有样品都很好地索引到具有Pnma空间群的正交结构。随着 Sr 浓度x 的增加,晶格参数a减小,晶格参数bc增加,由于 Sr 2+ 的离子半径大于 Nd 3+ 的离子半径,因此获得的晶胞体积系统地增加. Sr 对 Nd 的部分替代抑制了金属-绝缘体和反铁磁转变,直到x  = 0.2。然而,随着 Sr 含量增加到 0.3,观察到一些异常现象。目前的工作表明,物理性质与 Nd 1- x Sr x NiO 3系统中钙钛矿耐受因子的演变相关。

更新日期:2021-07-04
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