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Correlation between the tolerance factor and phase transition in O10 by Huangfu, Shangxiong ;Zhang, Xiaofu ;Schilling, Andreas is a Physics and Astronomy article available to read on EtoBox.

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We have synthesized a series of the Ruddlesden-Popper nickelate solid solution A 4-x B x Ni 3 O 10 (A and B = La, Pr, and Nd; x = 0, 1, 2, and 3) via the citrate precursor method in different reacting atmospheres. Both the electronic-transport and magnetization measurements on these samples show well-defined phase transitions at temperatures between 135 and 165 K. These transition temperatures as well as the room-temperature resistivities strongly correlate with the Goldschmidt tolerance factor t, irrespective of the combination of the magnetic rareearth ions with nonmagnetic La 3+ . We conclude that these changes of the electronic properties are mostly a consequence of the distortion of the NiO 6 octahedra at the phase transition which is intimately related to the tolerance factor t, but appear to be rather insensitive to the average magnetic moment of the rare-earth ions upon exchanging La by Pr or Nd.

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Author

Huangfu, Shangxiong ;Zhang, Xiaofu ;Schilling, Andreas

Publisher

American Physical Society (APS)

Published

2020

Language

EN

Field

Physics and Astronomy (Physical Sciences)