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Syntheses and Magnetic Properties of La1−xSrxMnOy (0.5≤x≤1.0) Perovskite

✍ Scribed by K. Kikuchi; H. Chiba; M. Kikuchi; Y. Syono

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
137 KB
Volume
146
Category
Article
ISSN
0022-4596

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✦ Synopsis

La 1+x Sr x MnO y with 0.04x40.6, which reveals very interesting physical properties such as ferromagnetism and metallic resistivity, can easily be synthesized by the conventional solid state reaction. In the case of the composition of x'0.6, they cannot be synthesized by the normal synthesis but by the twostage solid state reaction, which at 5rst makes the oxygen-de5cient state at high temperature and then inserts oxygen by O 2 annealing at low temperature. Nevertheless all of obtained compound is single phase cubic perovskite structure, ferromagnetism and metallic property observed in the composition range 0.1754x40.6 are not revealed, cause of drastic change between 0.50(x(0.60.

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