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 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Condensed Matter Physics
- Materials Chemistry
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Low field magnetoresistance in intrinsic granular system La1-xBaxMnO3. / Nam, Y. S.; Ju, Honglyoul; Park, C. W.
In: Solid State Communications, Vol. 119, No. 10-11, 29.08.2001, p. 613-618.Research output: Contribution to journal › Article
TY - JOUR
T1 - Low field magnetoresistance in intrinsic granular system La1-xBaxMnO3
AU - Nam, Y. S.
AU - Ju, Honglyoul
AU - Park, C. W.
PY - 2001/8/29
Y1 - 2001/8/29
N2 - 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.
AB - 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.
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U2 - 10.1016/S0038-1098(01)00291-5
DO - 10.1016/S0038-1098(01)00291-5
M3 - Article
VL - 119
SP - 613
EP - 618
JO - Solid State Communications
JF - Solid State Communications
SN - 0038-1098
IS - 10-11
ER -