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Journal of Inorganic Materials

Journal of Inorganic Materials >

2008 , Vol. 23 >Issue 1: 8 - 12

DOI: https://doi.org/10.3724/SP.J.1077.2008.00008

Research Paper

Influence of Fe Doping at B Site upon Electric and Magnetic Properties of LaMnO3 System

  • CAI Zhi-Rang ,
  • TONG Wei ,
  • ZHANG Bei ,
  • ZHANG Yu-Heng
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  • 1. Materials Research Laboratory, Suzhou College, Suzhou 234000, China;
    2. Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China

Received date: 2007-01-28

  Revised date: 2007-03-21

  Online published: 2008-01-20

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Abstract

By measuring M-T curves, ESR curves, ρ-T curves and MR-T curves of the samples,
the influences of Fe doping (x=0.05, 0.10, 0.20, 0.30, 0.40) upon magnetic
and electric properties of LaMnO3 were studied. The experimental results indicate that all samples undergo the transition from paramagnetism to ferromagnetism at TC. For the doped samples, there is a paramagnetic-ferromagnetic (PM-FM) transition but there is no insulator-metal(IM) transition. The results are attributed to double exchange interaction between Fe3+ ions and Mn3+ ions and Jahn-Teller effects.

Key words： colossal magnetoresistance effect; magnetic structure; transport behaviors; double exchange

Cite this article

CAI Zhi-Rang , TONG Wei , ZHANG Bei , ZHANG Yu-Heng . Influence of Fe Doping at B Site upon Electric and Magnetic Properties of LaMnO3 System[J]. Journal of Inorganic Materials, 2008 , 23(1) : 8 -12 . DOI: 10.3724/SP.J.1077.2008.00008

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