Citation:
Meng Jian, Ren Yufang, Pan Yanan. ELECTRICAL PROPERTIES OF Ca, Sr DOPED La2NiO4[J]. Chinese Journal of Applied Chemistry,
;1993, 10(3): 39-41.
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The solid solutions of La2-xCaxNiO4 (0 ≤x ≤1.4) were prepared and compared with solid solutions of La2-xSrxNiO4. 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 La2-xCaxNiO4 progressively increases but that of La2-xSrxNiO4 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+.
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