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Correlation between the tolerance factor and phase transition in A4–xBxNi3O10 (A and B=La,Pr,and Nd;x=0,1,2,and 3)


Huangfu, Shangxiong; Zhang, Xiaofu; Schilling, Andreas (2020). Correlation between the tolerance factor and phase transition in A4–xBxNi3O10 (A and B=La,Pr,and Nd;x=0,1,2,and 3). Physical Review Research, 2(3):033247.

Abstract

We have synthesized a series of the Ruddlesden-Popper nickelate solid solution A4–xBxNi3O10 (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 rare-earth ions with nonmagnetic La3+. We conclude that these changes of the electronic properties are mostly a consequence of the distortion of the NiO6 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.

Abstract

We have synthesized a series of the Ruddlesden-Popper nickelate solid solution A4–xBxNi3O10 (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 rare-earth ions with nonmagnetic La3+. We conclude that these changes of the electronic properties are mostly a consequence of the distortion of the NiO6 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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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:13 August 2020
Deposited On:30 Oct 2020 15:29
Last Modified:03 Nov 2020 11:20
Publisher:American Physical Society
ISSN:2643-1564
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1103/physrevresearch.2.033247

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