欢迎登录材料期刊网

材料期刊网

中国科学院金属研究所 科学出版社
高级检索
  1. 首页
  2. 期刊
  3. 材料导报
  4. 复合相结构钙钛矿锰氧化物低场磁电阻效应

材料导报, 2010, 24(9): 11-15.

复合相结构钙钛矿锰氧化物低场磁电阻效应

杨立芹 1, , 羊新胜 2, , 吕莉 3, , 赵勇 4,

1.西南交通大学超导中心,成都,610031

2.西南交通大学超导中心,成都,610031

3.西南交通大学超导中心,成都,610031

4.西南交通大学超导中心,成都,610031

基金项目:   高等学校博士点基金(SRFDP)(200806130023)   国家自然科学基金(50588201;50872116)  

关键词： 钙钛矿锰氧化物 , 低场磁电阻 , 复合相体系

Low-field Magnetoresistance of Perovskite Manganites Two-phase Composites

YANG Liqin 1, , YANG Xinsheng 2, , LU Li 3, , ZHAO Yong 4,

1.西南交通大学超导中心,成都,610031

2.西南交通大学超导中心,成都,610031

3.西南交通大学超导中心,成都,610031

4.西南交通大学超导中心,成都,610031

Keywords： perovskite manganese oxides , low-field magnetoresistance , two-phase composites

阐述了低场磁电阻及其产生的物理机制,综述了国内外近年来在复合相钙钛矿锰氧化物低场磁电阻增强这一研究领域的进展及其存在的问题.在母相中添加第二相物质形成复合相结构是低场增强磁电阻最简单和有效的方法.结合实践需要和自身研究结果提出制备复合相钙钛矿锰氧化物的新方法,即粘接法,用此方法制备出的复相材料具有很好的应用潜力.

In this article the theoretical models of LFMR,recent progress and problems on enhanced LFMR in the two-phase perovskite manganese composites at home and abroad are reviewed.The most simple and effective method for enhancing LFMR is adding a second phase to the parent phase.Combining practical needs and the research results of our group,a new bonding method to prepare two-phase perovskite manganese oxides,which has good po-tential application is put forward.

参考文献

[1] 刘俊明,王克锋.稀土掺杂锰氧化物庞磁电阻效应[J].物理学进展,2005(01):82-130.
[2] 焦正宽;曹光旱.磁电子学[M].杭州:浙江大学出版社,2005
[3] 王克锋,刘俊明.稀土锰氧化物的低场磁电阻效应[J].物理学进展,2003(02):192-211.
[4] Siwach PK;Singh HK;Srivastava ON .Low field magnetotransport in manganites[J].Journal of Physics. Condensed Matter,2008(27):273201-1-273201-43-0.
[5] Von Helmolt R;Wecker J;Holzapfel B et al.Giant nega-tive magnetoresistance in perovskite-like La_(2/3) Ba_(1/3) MnO_3 fe-rromagnetic films[J].Physical Review Letters,1993,71(14):2331.
[6] Jin S;Tiefel T H;MeCormack M .Thousandfold change in resistivity in magnetoresistive La-Ca-Mn-O films[J].Science,1994,264:413.
[7] Hwang H Y;Cheong S W;Ong N P et al.Spin-polarized intergrain tunneling in La_(2/3) Sr_(1/3) MnO_3[J].Physical Review Letters,1996,77:2041.
[8] Gupta A;Gong G Q;Xiao G .Grain-boundary effects on the magnetoresistance properties of perovskite manganite films[J].Physical Review B:Condensed Matter,1996,54:R15629.
[9] Wang XL.;Liu HK.;Ionescu M.;Zeimetz B.;Dou SX. .Large low-field magnetoresistance over a wide temperature range induced by weak-link grain boundaries in La0.7Ca0.3MnO3[J].Applied physics letters,1998(3):396-398.
[10] Peng H B;Zhao B R;Xie Z .Surface pattern and large low-field magnetoresistance in La_(0.5) Ca_(0.5) MnO_3 films[J].Applied Physics Letters,1999,74:1606.
[11] Bibes M.;Martinez B.;Fert AR.;Trtik V.;Varela M. Fontcuberta J.;Hrabovsky D. .Magneto-optical Kerr effect in laser-patterned La2/3Sr1/3MnO3 epitaxial thin films[J].Journal of Applied Physics,2001(11 Pt.2):6958-6960.
[12] L1. Balcells;A. E. Carrillo;B. Martinez;J. Fontcuberta .Enhanced field sensitivity close to percolation in magnetoresistive La_(2/3)Sr_(1/3)MnO_3/CeO_2 composites[J].Applied physics letters,1999(26):4014-4016.
[13] Gaur A;Varma G D .Low field magnetoresistance in La_(0.67)-Ca_(0.33) MnO_3 and Co_3O_4 combined system[J].Journal of Alloys and Compounds,2008,453:423.
[14] Gaur A;Varma GD;Singh HK .Enhanced low field magnetoresistance in La0.7Sr0.3MnO3/TiO2 composite[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2006(16):3531-3535.
[15] Xia ZC.;Yuan SL.;Zhang LJ.;Zhang GH.;Feng W.;Tang J.;Liu L.;Liu S. Liu J.;Peng G.;Li ZY.;Yang YP.;Tang CQ.;Xiong CS. .Enhancement of magnetoresistances at room temperature in YSZ doping La0.67Sr0.33MnO3 system[J].Solid State Communications,2003(10):571-574.
[16] Karmakar S;Taran S;Chaudhuri BK;Sakata H;Sun CP;Huang CL;Yang HD .Study of grain boundary contribution and enhancement of magnetoresistance in La0.67Ca0.33MnO3/V2O5 composites[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2005(20):3757-3763.
[17] Huang BX.;Liu YH.;Zhang RZ.;Xiaobo-Yuan.;Wang CJ.;Mei LM. .Low-field MR behaviour in La0.67Ca0.33MnO3/ZrO2 composite system[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2003(16):1923-1927.
[18] Yang XS;Yang Y;He W;Cheng CH;Zhao Y .Low-field magnetoresistance in La0.7Sr0.3MnO3/Ta2O5 composites[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2008(11):115009-1-115009-5-0.
[19] Das D;Srivastava CM;Bahadur D;Nigam AK;Malik SK .Magnetic and electrical transport properties of La0.67Ca0.33MnO3 (LCMO): xZnO composites[J].Journal of Physics. Condensed Matter,2004(23):4089-4102.
[20] Siwach P K;Srivastava Pankaj et al.Broad temperature range low field magnetoresistance in La_(0.7) Ca_(0.3)MnO_3:nano-ZnO composites[J].Journal of Alloys and Compounds,2009,481:17.
[21] Gaur Anurag;Varma G D .Magnetoresistance behaviour of La_(0.7) St_(0.3) MnO_3/NiO composites[J].Solid State Communications,2006,139:310.
[22] Hueso LE.;Rivadulla F.;Lopez-Quintela MA.;Rivas J. .Magnetoresistance in manganite/alumina nanocrystalline composites[J].Journal of Applied Physics,2001(3):1746-1750.
[23] Das D.;Chowdhury P.;Das RN.;Srivastava CM.;Nigam AK.;Bahadur D. .Solution sol-gel processing and investigation of percolation threshold in La2/3Ca1/3MnO3 : xSiO(2) nanocomposite[J].Journal of Magnetism and Magnetic Materials,2002(2/3):178-184.
[24] Zhang N;Wang M .Giant positive magnetoresistance in com-posite(La_(0.83)Sr_(0.17)MnO_3)_(0.6)(ITO)_(0.4)[J].Applied Physics Letters,2006,88:122111.
[25] Huang Y H;Yan C H;Luo F et al.Large enhancement in-room-temperature magnetoresistance and dramatic decrease in resistivity in La_(0.7)Ca_(0.3) MnO_3-Ag composites[J].Applied Physics Letters,2002,81:76.
[26] Yuan X B;Liu Y H;Wang C J .Large room-temperature magnetoresistance in Pd-added manganites[J].Applied Physics Letters,2006,88:042508.
[27] Xiong Caoshui;Hu Haixin;Xiong Yonghong et al.Electrical properties and enhanced room(La_(0.7)Ca_(0.2)Sr_(0.1)MnO_3)_(1-x)/Pd_x omposites[J].Journal of Alloys and Compounds,2009,479:357.
[28] Miao JH;Yuan SL;Ren GM;Xiao X;Yu GQ;Wang YQ;Yin SY .Enhancement of magnetoresistance in La-2/Ca-3(1)/3MnO3/xCuMn(2)O(4) nanocomposites[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2007(3):707-711.
[29] Yan CH.;Zhu T.;Wang ZM.;Cheng FX.;Huang YH.;Liao CS.;Xu ZG. .A large low field colossal magnetoresistance in the La0.7Sr0.3MnO3 and CoFe2O4 combined system[J].Journal of Applied Physics,2000(9 Pt.2):5588-5590.
[30] Kumar J;Singh R K;Siwach P K et al.Low field magneto-transport in LBSMO-PMMA composite[J].Journal of Magnetism and Magnetic Materials,2006,299:155.
[31] Yan CH.;Huang YH.;Chen X.;Liao CS.;Wang ZM. .Improvement of magnetoresistance over a wide temperature range in La-2/Sr-3(1)/3MnO3/polymer composites[J].Journal of Physics. Condensed Matter,2002(41):9607-9614.
[32] Liu J M;Yuan G L;Sang H et al.Low-field magnetoresis-tance in nanosized La_(0.7)Sr_(0.3)MnO_3/Pr_(0.5)Sr_(0.5)MnO_3 compo-sites[J].Applied Physics Letters,2001,78:1110.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
作者相关
文章评分
  • 您的评分：
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%

版权所有©2010中国科学院金属研究所中国科技出版传媒股份有限公司

本系统由北京仁和汇智信息技术有限公司设计开发

技术支持：info@rhhz.net