Abstract
Ceramic composites of La0.7Pb0.3MnO3/Ag and La0.3Pb0.3MnO3/Fe2O3 are prepared by using chemical and solid-sate sintering route. The structural and magnetotransport properties are studied for these composites. Ferromagnetism is gradually suppressed with the increase of Ag or Fe 2O3 mole percentage for both systems. The resistivity decreases significantly for La0.7Pb0.3MnO3/Ag while resistivity increases dramatically for La0.7Pb 0.3MnO3/Fe2O3. It is suggested that the introduction of Ag into the niche of grain boundaries form artificial conducting network and improve the carriers to transport. Contrarily, the Fe2O3 in La0.7Pb0.3MnO 3/Fe2O3 composite acts as a separation layer between two grains and forms the artificial tunneling junction. However, the enhancement of magnetoresistance has been observed for both systems.
| Original language | English |
|---|---|
| Pages (from-to) | 1817-1824 |
| Number of pages | 8 |
| Journal | International SAMPE Symposium and Exhibition (Proceedings) |
| Volume | 50 |
| Publication status | Published - 2005 Dec 1 |
| Event | 50th International SAMPE Symposium and Exhibition - Long Beach, CA, United States Duration: 2005 May 1 → 2005 May 5 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
}
Synthesis of magnetic properties in composites la0.7Pb 0.3MnO3/Ag and la0.7Pb0.3MnO 3/Fe2O3. / Young, S. L.; Chen, H. Z.; Shen, J. Y.; Horng, Lance; Ho, Y. W.; Shi, J. B.; Lin, C. C.
In: International SAMPE Symposium and Exhibition (Proceedings), Vol. 50, 01.12.2005, p. 1817-1824.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Synthesis of magnetic properties in composites la0.7Pb 0.3MnO3/Ag and la0.7Pb0.3MnO 3/Fe2O3
AU - Young, S. L.
AU - Chen, H. Z.
AU - Shen, J. Y.
AU - Horng, Lance
AU - Ho, Y. W.
AU - Shi, J. B.
AU - Lin, C. C.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - Ceramic composites of La0.7Pb0.3MnO3/Ag and La0.3Pb0.3MnO3/Fe2O3 are prepared by using chemical and solid-sate sintering route. The structural and magnetotransport properties are studied for these composites. Ferromagnetism is gradually suppressed with the increase of Ag or Fe 2O3 mole percentage for both systems. The resistivity decreases significantly for La0.7Pb0.3MnO3/Ag while resistivity increases dramatically for La0.7Pb 0.3MnO3/Fe2O3. It is suggested that the introduction of Ag into the niche of grain boundaries form artificial conducting network and improve the carriers to transport. Contrarily, the Fe2O3 in La0.7Pb0.3MnO 3/Fe2O3 composite acts as a separation layer between two grains and forms the artificial tunneling junction. However, the enhancement of magnetoresistance has been observed for both systems.
AB - Ceramic composites of La0.7Pb0.3MnO3/Ag and La0.3Pb0.3MnO3/Fe2O3 are prepared by using chemical and solid-sate sintering route. The structural and magnetotransport properties are studied for these composites. Ferromagnetism is gradually suppressed with the increase of Ag or Fe 2O3 mole percentage for both systems. The resistivity decreases significantly for La0.7Pb0.3MnO3/Ag while resistivity increases dramatically for La0.7Pb 0.3MnO3/Fe2O3. It is suggested that the introduction of Ag into the niche of grain boundaries form artificial conducting network and improve the carriers to transport. Contrarily, the Fe2O3 in La0.7Pb0.3MnO 3/Fe2O3 composite acts as a separation layer between two grains and forms the artificial tunneling junction. However, the enhancement of magnetoresistance has been observed for both systems.
UR - http://www.scopus.com/inward/record.url?scp=31944439330&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=31944439330&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:31944439330
VL - 50
SP - 1817
EP - 1824
JO - International SAMPE Symposium and Exhibition
JF - International SAMPE Symposium and Exhibition
SN - 0891-0138
ER -