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Citation: Li Siwen, Ren Yufang, Wang Hongyan. Synthesis,Crystal Structure,Electrical and Magnetic Properties of Pr_2-xSr_xNiO_4±δ[J]. Chinese Journal of Applied Chemistry, ;1994, 11(3): 40-44. shu

Synthesis,Crystal Structure,Electrical and Magnetic Properties of Pr_2-xSr_xNiO_4±δ

1.
Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Scienes, Changchun 130022

Received Date: 26 June 1993
Available Online: 14 January 1994

A series of solid soItition Pr_2-xSr_xNiO₄(0.00≤x≤1.00) were synthesized with the nickel valence being +2 to +3.The mixed oxides crystallized in orthorhombic (0.00≤x<0.10 and x=1.00) or tetragonal system (0.10≤x<1.00).The crystal parameter ratio c/a shows a maximum at x=0.5 caused by Jahn-Teller distortion in octahedral site of the low-spin Ni³⁺ ions.The magnetic susceptibilities of the mixed oxides follow the Curie-Weiss rule at temperatures 77~250K.An antiferomagne exchange interaction was observed in all the samples.The change of electrical properties in the system of x>0.5 is attributed to the change of electronic configuration of Ni³⁺ from t_2g⁶d_Z²¹ to t_2g⁶d_x²-y²¹.
- praseodium-strontium-nickel mixed oxide,
- crystal structure,
- electrical property,
- magnetic property
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Synthesis,Crystal Structure,Electrical and Magnetic Properties of Pr2-xSrxNiO4±δ

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Synthesis,Crystal Structure,Electrical and Magnetic Properties of Pr_2-xSr_xNiO_4±δ