Abstract
The La1-xBaxMnO3 for 0.5≤x was found to be an intrinsic magnetic granular system composed of ferromagnetic/metallic phase and insulating phase. Owing to the magnetic granularity, the La1-xBaxMnO3 system for 0.5≤x shows a three-dimensional percolation-type conduction behavior with a percolation threshold of xp=∼0.85 (i.e. ferromagnetic volume fraction, θp(%), of ∼17%) and a large low field magnetoresistance (MR). The MR of 12-16% at 500 Oe and 77 K was found in the granular ferromagnetic region over a wide range of doping 0.5≤x≤0.75, and the MR was found to become small for x<0.5 and x>0.75.
| Original language | English |
|---|---|
| Pages (from-to) | 613-618 |
| Number of pages | 6 |
| Journal | Solid State Communications |
| Volume | 119 |
| Issue number | 10-11 |
| DOIs | |
| Publication status | Published - 2001 Aug 29 |
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
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Nam, Y. S., Ju, H. L., & Park, C. W. (2001). Low field magnetoresistance in intrinsic granular system La1-xBaxMnO3. Solid State Communications, 119(10-11), 613-618. https://doi.org/10.1016/S0038-1098(01)00291-5