ELECTRICAL PROPERTIES OF Ca,Sr DOPED La2NiO4

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (3): 39-41.

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ELECTRICAL PROPERTIES OF Ca,Sr DOPED La₂NiO₄

Meng Jian, Ren Yufang, Pan Yanan

Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun

Received:1992-07-07 Revised:1992-09-08 Published:1993-06-10 Online:1993-06-10

Abstract

Abstract: The solid solutions of La_2-xCa_xNiO₄ (0≤x≤1. 4) were prepared and compared with solid solutions of La_2-xSr_x NiO₄. All the members of the system are of tetragonal K₂NiF₄ structure. Their crystal parameters a,c and cell volume were found to be gradually decreased with the increase of x. The electrical resistivity of La_2-xCa_xNiO₄ progressively increases but that of La_2-xSr_xNiO₄ gradually decreases with increasing x at room temperature. The difference in electrical behavior is interpreted in terms of the change of the electronic configuration of Ni³⁺.

Key words: lanthanum nickelate, strontium, calcium, doped solid solution, electrical property

Meng Jian, Ren Yufang, Pan Yanan. ELECTRICAL PROPERTIES OF Ca,Sr DOPED La₂NiO₄[J]. Chinese Journal of Applied Chemistry, 1993, 0(3): 39-41.

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ELECTRICAL PROPERTIES OF Ca,Sr DOPED La₂NiO₄

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