论文标题

LN4-XLNXNI3O10中的公差因子与相变(Ln and ln'= la,pr和nd; x = 0、1、2和3)之间的相关性

Correlation between the tolerance factor and phase transition in Ln4-xLnxNi3O10 (Ln and Ln' = La, Pr and Nd; x = 0, 1, 2 and 3)

论文作者

Huangfu, Shangxiong, Zhang, Xiaofu, Schilling, Andreas

论文摘要

我们通过在不同反应大气中的柠檬酸盐前体方法合成了一系列Ruddlesden-Popper镍固体固体固体固体溶液LN4-XLN'XNI3O10(Ln and ln and ln and ln and Ln'= la = la,pr和nd; x = 0、1、2和3)。这些样品上的电子传输和磁化测量都显示在135 K至165 K之间的温度下定义明确的相变。这些过渡温度,室温的抵抗力以及Pauli-Paramagnetic启发性的变化在相应相位过渡时,与金色的组合构成了Irschmidt TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TORSCHMID TTE,这稀土离子,具有非磁性LA3+。我们得出的结论是,电子特性的这些变化主要与相变时Nio6八人体的失真有关,该变化与公差因子t密切相关,但对稀有地球离子LN3+和Ln'3+的磁性不敏感。

We have synthesized a series of the Ruddlesden-Popper nickelate solid solution Ln4-xLn'xNi3O10 (Ln and Ln' = La, Pr and Nd; x = 0, 1, 2 and 3) via the citrate precursor method at different reacting atmospheres. Both the electronic-transport and magnetization measurements on these samples show well-defined phase transitions at temperatures between 135 K and 165 K. These transition temperatures, the room-temperature resistivities, as well as the changes of the Pauli-paramagnetic susceptibilities at the respective phase transitions, strongly correlate with the Goldschmidt tolerance factor t, irrespective of the combination of the magnetic rare-earth ions with unmagnetic La3+. We conclude that these changes of the electronic properties are mostly related to the distortion of the NiO6 octahedra at the phase transition which is strongly correlated with the tolerance factor t, but are rather insensitive to the magnetism of the rare-earth ions Ln3+ and Ln'3+.

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