| Transport Properties of Rare Earth Manganese Oxide La_(0.67)Ca_(0.33)Mn_(1-x)Fe_xO_3 |
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| 引用本文： | 崔玉建,葛洪良,贾广强,韩雁冰,余森江,张金仓. Transport Properties of Rare Earth Manganese Oxide La_(0.67)Ca_(0.33)Mn_(1-x)Fe_xO_3[J]. 中国稀土学报(英文版), 2004, 22(5) |
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| 作者姓名： | 崔玉建 葛洪良 贾广强 韩雁冰 余森江 张金仓 |
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| 作者单位： | Department of Physics，China Institute of Metrology，Hangzhou 310018，China，Department of Physics，China Institute of Metrology，Hangzhou 310018，China，Department of Physics，Shanghai University，Shanghai 200436，China，Department of Physics，China Institute of Metrology，Hangzhou 310018，China，Department of Physics，Shanghai University，Shanghai 200436，China，Department of Physics，Shanghai University，Shanghai 200436，China |
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| 基金项目： | 国家自然科学基金，浙江省自然科学基金，上海市教委资助项目，上海市重点学科建设项目 |
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| 摘 要： | CompoundsofthetypeLn1-xAxMnO3(Ln =rareearth ,A =Ca ,Ba ,Sr ,etc .)havebeenthepopularsubjectsofextensiveresearchrecently ,mainlyduetotheexistenceofcolossalmagnetoresistance(CMR ) [1～ 3] .Atroomtemperature ,theperovskitecompoundLnMnO3isantiferromagneticinsulatorwhereMnistrivalent .ThepartialsubstitutionoftrivalentLnionswithdivalentionssuchasCa ,Ba ,Sr ,andPbetc .yieldsanewcompoundexhibitingstrongferro magnetismandhighmetallicconductivity .Thetrans portpropertyinthesecompoundscanbepartly…
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Transport Properties of Rare Earth Manganese Oxide La0.67Ca0.33Mn1-xFexO3 |
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| Cui Yujian. Transport Properties of Rare Earth Manganese Oxide La0.67Ca0.33Mn1-xFexO3[J]. Journal of Rare Earths, 2004, 22(5) |
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| Authors: | Cui Yujian |
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| Affiliation: | Cui Yujian ~ |
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| Abstract: | The transport properties were studied for rare earth manganese oxide La0.67Ca0.33Mn1-xFexO3(x=0～0.3) systems.It is found that with increasing Fe3 -doping content x,the resistance increases and the insulator-metal transition temperature(TIM) shifts to lower temperature.If the doping content is small,the transport properties manifest metallic characteristics in the temperature range of TTIM.Such a behavior may be attributed to the Fe3 -doping and possible Mn ions scattering to electrons.The Fe3 doping may lead to the formation of Fe3 -O2--Mn4 channels,which could terminate the double exchange Mn3 -O2--Mn4 channels.The antiferromagnetic clusters of Fe ions may induce the Mn ions to scetter to the electrons. |
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| Keywords: | metal material transport properties Fe doping La2/3Ca1/3MnO3 rare earths |
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