摘要
研究了在低磁场 H≤ 0 .8T区间下的材料 L a0 .6 7Ca0 .33Mn1 - x Tx O3( T=Fe或 Ni)中的磁阻效应 ,发现在L a0 .6 7Ca0 .33Mn1 - x Fex O3中用铁替代锰降低了磁阻比 ,但改善了磁阻随磁场变化的线性度。用少量的镍替换锰 ( x=0 .1)时 。
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)
出处
《稀土》
EI
CAS
CSCD
北大核心
2001年第1期55-57,共3页
Chinese Rare Earths
基金
国家自然科学基金资助项目!(编号 5 9772 0 40 )
