The effect of the partial substitution of Mn with Fe in the layered perovskites (x 0.2) La 1.4 Ca 1.6 Mn 2± ±x Fe x O 7 has been studied. The results show that conduction and ferromagnetism have been consistently suppressed by Fe doping. The colossal magnetoresistance is enhanced by Fe doping in som
Effect of Al doping on the magnetic and electrical properties of layered perovskite La1.3Sr1.7Mn2−xAlxO7
✍ Scribed by L.A. Han; C.L. Chen; H.Y. Dong; J.Y. Wang; G.M. Gao
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 473 KB
- Volume
- 403
- Category
- Article
- ISSN
- 0921-4526
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An intense e4ort has recently been devoted to studying the interplay between structure, magnetism, and transport in manganese perovskite Ln 1؊x A x MnO 3 (Ln ؍ La, Pr, Nd, Sm; A ؍ Ca, Ba, Sr). As a function of temperature, applied magnetic 5eld, doping, A-site ionic radius 1r A 2, and A-site siz