Abstract
The transport properties in La0.7-xYxPb0.3MnO3 (0.0 ≤ x ≤ 0.2) is investigated. The substitution of La3+ ions by smaller nonmagnetic Y3+ leads to greater spin disorder and induces variations in the magnetotransport behavior. From resistivity versus temperature curves a metal-insulator transition phenomenon is observed at the transition temperature, TP, decreases as the Y content increases. The resistivity is well fitted using the equation ρ(T) = ρnexp[(T*/T)n] with n = 1/4 and n = 1/2 at high and intermediate temperatures, respectively. The characteristic temperature T* varies with Y content in a manner consistent with the localization model of variable range hopping. Below TP, resistivity varies as a function of power law contributions, ρ = ρ0 + ρ2T2 + ρ5/2T5/2, corresponding to the electron scattering processes in the ferromagnetic phase.
| Original language | English |
|---|---|
| Pages (from-to) | 5290-5291 |
| Number of pages | 2 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 354 |
| Issue number | 47-51 |
| DOIs | |
| Publication status | Published - 2008 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry
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Transport behavior of yttrium substituted polycrystalline La0.7Pb0.3MnO3. / Lin, C. H.; Young, S. L.; Chen, H. Z.; Ou, C. R.; Kao, M. C.; Horng, Lance.
In: Journal of Non-Crystalline Solids, Vol. 354, No. 47-51, 01.12.2008, p. 5290-5291.Research output: Contribution to journal › Article
TY - JOUR
T1 - Transport behavior of yttrium substituted polycrystalline La0.7Pb0.3MnO3
AU - Lin, C. H.
AU - Young, S. L.
AU - Chen, H. Z.
AU - Ou, C. R.
AU - Kao, M. C.
AU - Horng, Lance
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The transport properties in La0.7-xYxPb0.3MnO3 (0.0 ≤ x ≤ 0.2) is investigated. The substitution of La3+ ions by smaller nonmagnetic Y3+ leads to greater spin disorder and induces variations in the magnetotransport behavior. From resistivity versus temperature curves a metal-insulator transition phenomenon is observed at the transition temperature, TP, decreases as the Y content increases. The resistivity is well fitted using the equation ρ(T) = ρnexp[(T*/T)n] with n = 1/4 and n = 1/2 at high and intermediate temperatures, respectively. The characteristic temperature T* varies with Y content in a manner consistent with the localization model of variable range hopping. Below TP, resistivity varies as a function of power law contributions, ρ = ρ0 + ρ2T2 + ρ5/2T5/2, corresponding to the electron scattering processes in the ferromagnetic phase.
AB - The transport properties in La0.7-xYxPb0.3MnO3 (0.0 ≤ x ≤ 0.2) is investigated. The substitution of La3+ ions by smaller nonmagnetic Y3+ leads to greater spin disorder and induces variations in the magnetotransport behavior. From resistivity versus temperature curves a metal-insulator transition phenomenon is observed at the transition temperature, TP, decreases as the Y content increases. The resistivity is well fitted using the equation ρ(T) = ρnexp[(T*/T)n] with n = 1/4 and n = 1/2 at high and intermediate temperatures, respectively. The characteristic temperature T* varies with Y content in a manner consistent with the localization model of variable range hopping. Below TP, resistivity varies as a function of power law contributions, ρ = ρ0 + ρ2T2 + ρ5/2T5/2, corresponding to the electron scattering processes in the ferromagnetic phase.
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U2 - 10.1016/j.jnoncrysol.2008.07.037
DO - 10.1016/j.jnoncrysol.2008.07.037
M3 - Article
AN - SCOPUS:55349139026
VL - 354
SP - 5290
EP - 5291
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
IS - 47-51
ER -