Magnetotransport properties of (La0.7Pb0.3MnO3)1-xAgx composites

S. L. Young, H. Z. Chen, C. C. Lin, J. B. Shi, Lance Horng, Yu-Tai Shih

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Magnetic and transport properties of (La0.7Pb0.3MnO3)1-xAgx composites are explored in this study. Ferromagnetism is gradually attenuated due to the magnetic dilution with increase of Ag content percentage. Clearly irreversible behavior in the zero-field cooling and field cooling curves at a low field caused by the competition between the magnetization and magnetic domain orientation processes has been observed as x increases. Saturation magnetization decreases as x increases, while ferromagnetic transition temperature remains around 346 K for all composites. The resistivity decreases significantly for (La0.7Pb0.3MnO3)1-xAgx composites. It is suggested that introduction of Ag into the niche of grain boundaries forms artificial conducting network and improves the carriers to transport. However, enhancement of magnetoresistance has been observed for the system.

Original languageEnglish
JournalJournal of Magnetism and Magnetic Materials
Volume303
Issue number2 SPEC. ISS.
DOIs
Publication statusPublished - 2006 Jan 1

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Galvanomagnetic effects
composite materials
Composite materials
Cooling
cooling
magnetization
Magnetic domains
Ferromagnetism
Magnetoresistance
Saturation magnetization
magnetic domains
Transport properties
ferromagnetism
Dilution
Superconducting transition temperature
dilution
Magnetization
Magnetic properties
Grain boundaries
grain boundaries

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Young, S. L. ; Chen, H. Z. ; Lin, C. C. ; Shi, J. B. ; Horng, Lance ; Shih, Yu-Tai. / Magnetotransport properties of (La0.7Pb0.3MnO3)1-xAgx composites. In: Journal of Magnetism and Magnetic Materials. 2006 ; Vol. 303, No. 2 SPEC. ISS.
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Magnetotransport properties of (La0.7Pb0.3MnO3)1-xAgx composites. / Young, S. L.; Chen, H. Z.; Lin, C. C.; Shi, J. B.; Horng, Lance; Shih, Yu-Tai.

In: Journal of Magnetism and Magnetic Materials, Vol. 303, No. 2 SPEC. ISS., 01.01.2006.

Research output: Contribution to journalArticle

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AU - Young, S. L.

AU - Chen, H. Z.

AU - Lin, C. C.

AU - Shi, J. B.

AU - Horng, Lance

AU - Shih, Yu-Tai

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AB - Magnetic and transport properties of (La0.7Pb0.3MnO3)1-xAgx composites are explored in this study. Ferromagnetism is gradually attenuated due to the magnetic dilution with increase of Ag content percentage. Clearly irreversible behavior in the zero-field cooling and field cooling curves at a low field caused by the competition between the magnetization and magnetic domain orientation processes has been observed as x increases. Saturation magnetization decreases as x increases, while ferromagnetic transition temperature remains around 346 K for all composites. The resistivity decreases significantly for (La0.7Pb0.3MnO3)1-xAgx composites. It is suggested that introduction of Ag into the niche of grain boundaries forms artificial conducting network and improves the carriers to transport. However, enhancement of magnetoresistance has been observed for the system.

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