2001•Chinese Rare EarthsRequires access

Colossal Magnetoresistance Effect ofLa_(0.67)Ca_(0.33)Mn_(1-x)T_xO_3 under Low Magnetic Fields

Hong Qin

Abstract

In this work,the magnetoresistance of La 0 67 Ca 0 33 Mn 1-x T xO 3(T=Fe or Ni)has been investigated in the low magnetic field range H≤0 8T.It has been found that the replacement of Mn by Fe lowers the low field magnetoresistance,but improves the behavior of linearity of low field magnetoresistance.Meanwhile the better low field large magnetoresistance change can be observed in the low addition of Ni(x=0 1)

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Key concepts: Magnetoresistance, Colossal magnetoresistance, Magnetic field, Condensed matter physics, Materials science, Field (mathematics), Giant magnetoresistance, Chemistry