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Effect of Complex TiO2 Addition on the Electrical Transport and Magnetoresistance Properties of La2/3(Ca0.65Ba0.35)1/3MnO3

ZHAO Hui1, WANG Xiang qun1, DU Xiao bo1, YU Tao1, WANG Dong mei1,DONG Yi1, ZHANG Yan xiang2   

  1. 1. College of Physics, Jilin University, Changchun 130021, China; 2. Jilin Provincial Institute of Education, Changchun 130022, China
  • Received:2007-07-26 Revised:1900-01-01 Online:2008-07-26 Published:2008-07-26
  • Contact: WANG Xiang qun

Abstract: La2/3(Ca0.65Ba0.35)1/3MnO3 fine powders were synthesied by a Glyine-Nitrate Process (GNP) method. The influences of TiO2 contents on the MR and electrical transport properties (resistivity) of a series of composite samples of La2/3(Ca0.65Ba0.35)1/3MnO3.xTiO2 (x=0,0.02,0.035,0.055,0.09,0.17) were studied. Results show that TiO2 causes the low\|field magnetoresistance, and increases the resistivity.

Key words: manganite perovskite, composite, grain boundary, spin-correlation, low field magnetoresistance

CLC Number: 

  • O482.5