We have measured resistivity, magnetization and magnetoresistance in polycrystalline La0.7\_xPr, Sr0,3Mn0s with fixed carrier concentration. With decreasing the average ionic radius of the La site ( rA), we found a decrease in T,, an increase in resistivity at T,, and an increase in the magnitude of
✦ LIBER ✦
Large Magnetovolume Effect in Yttrium Doped La-Ca-Mn-O Perovskite
✍ Scribed by Ibarra, M. R.; Algarabel, P. A.; Marquina, C.; Blasco, J.; García, J.
- Book ID
- 121360534
- Publisher
- The American Physical Society
- Year
- 1995
- Tongue
- English
- Weight
- 225 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0031-9007
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The effects of La-doping and external pressure on the crystal structure of layered perovskite-like manganate Ca 3 Mn 2 O 7 have been investigated by substituting La 3+ for Ca 2+ in Ca 3 Mn 2 O 7 and in situ high pressure energy dispersive X-ray diffraction measurements on Ca 3 Mn 2 O 7 , respectivel