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La0.5Ca0.5MnO3内禀与界面电脉冲诱导电阻转变效应的比较

吴美玲 石大为 阚芝兰 王瑞龙 丁益民 肖海波 杨昌平

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La0.5Ca0.5MnO3内禀与界面电脉冲诱导电阻转变效应的比较

吴美玲, 石大为, 阚芝兰, 王瑞龙, 丁益民, 肖海波, 杨昌平

Comparison bwtween intrinsic and interfacial electrical pulse induced resistance effects in La0.5Ca0.5MnO3 ceramics

Wu Mei-Ling, Shi Da-Wei, Kan Zhi-Lan, Wang Rui-Long, Ding Yi-Min, Xiao Hai-Bo, Yang Chang-Ping
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  • 一般地,钛矿结构锰氧化物的电脉冲诱导电阻转变(EPIR) 效应源于非内禀界面处的肖特基势垒. 本文采用固相烧结法制备了La0.5Ca0.5MnO3 (LCMO)陶瓷样品, 用四线测量模式对样品电输运性质, 特别对其内禀EPIR效应和忆阻器行为进行了研究. 室温下, 尽管样品在四线测量模式下的I-V特性曲线呈欧姆线性规律, 但在适当的脉冲电压刺激下, 仍能诱导产生明显、稳定的EPIR效应. 通过与二线模式的界面EPIR比较, 发现LCMO内禀EPIR效应具有更小的脉冲临界电压、更好的稳定性和抗疲劳特性, 是稀土掺杂锰氧化物中观察到的一类新颖的EPIR效应.
    In general, the electrical pulse induced resistance (EPIR) effect of perovskite manganite originates from the interfacial Schottky barrier between the metal electrode and the surface of sample. In this work, La0.5Ca0.5MnO3 (LCMO) ceramic samples are synthesized by solid state reaction and the transport properties, especially the EPIR effect are investigated using 4-wire measurement mode. Although the I-V curve of LCMO shows ohmic linearity under the 4-wire measurement mode at room temperature, a stable and remarkable EPIR effect can still be observed when the pulse voltage is more than the critical value. Through the comparison between the intrinsic EPIR under 4-wire mode and the interface one under 2-wire mode, we find that the intrinsic EPIR of LCMO has a smaller critical pulse voltage to induce the effect, but it has a better anti-fatigue property. The intrinsic EPIR effect is a novel one which is observed in rare earth doped manganites.
    • 基金项目: 国家自然科学基金(批准号: 11074067, 11174073)和湖北省高等学校优秀中青年科技创新团队计划(批准号: T201301)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 11074067, 11174073) and the Project of Science and Technology Innovation Team of Hubei Province, China (Grant No. T201301).
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  • [1]

    Tokura Y, Tomioka Y 1999 J. Magn. Magn. Mater. 200 1

    [2]

    Dong S, Liu J M 2010 Prog. Phys. 30 1 (in Chinese) [董帅, 刘俊明 2010物理学进展 30 1]

    [3]

    Jiao Z K, Cao G H 2005 Magnetoelectronics (Vol. 1) (Hangzhou: Zhejiang University Press) pp222-433 (in Chinese) [焦正宽, 曹光旱2005磁电子学(第一版) (杭州:浙江大学出版社) 第222–433页]

    [4]

    Kou Z Q, Ma X, Di N L, Li Q A, Cheng S H 2005 Chin. Phys. Soc. 14 1896

    [5]

    Strukov D B, Snider G S, Stewart D R, Williams R S 2008 Nature 453 80

    [6]

    Chen Y S, Chen L P, Lian G J, Xiong G 2009 Chin. Phys. Lett. 26 037201

    [7]

    Wu Z H 2009 J. Shanghal Second Polytech. Univ. 26 28 (in Chinese) [吴子华 2009 上海第二工业大学学报 26 28]

    [8]

    Liu S Q, Wu N J, Ignative A 2000 Appl. Phys. Lett. 76 2749

    [9]

    Waser R, Aono M 2007 Nat. Mater. 6 833

    [10]

    Zhang H J, Zhang X P, Zhao Y G 2009 Chin. Phys. Lett. 26 077303

    [11]

    Sawa A 2008 Mater. Today 11 28

    [12]

    Xing Z W, Chen X, Wu N J, Ignatiev A 2011 Chin. Phys. B 20 097703

    [13]

    Meng Y, Zhang P J, Liu Z Y, Liao Z L, Pan X Y, Liang X J, Zhao H W, Chen D M 2010 Chin. Phys. B 19 037304

    [14]

    Sawa A, Fujii T, Kawasaki M, Tokura Y 2004 Appl. Phys. Lett. 18 4073

    [15]

    Rozenberg M J, Inoue I H, Sanchez M J, 2004 Phys. Rev. Lett. 92 178302

    [16]

    Yang R, Li X M, Yu W D, Gao X D, Shang D S, Liu X J, Cao X, Wang Q, Chen L D 2009 Appl. Phys. Lett. 95 072105

    [17]

    Yang C P, Chen S S, Dai Q, Song X P 2011 Acta Phys. Sin. 60 117202 (in Chinese) [杨昌平, 陈顺生, 戴琪, 宋学平2011物理学报 60 117202]

    [18]

    Chen S S, Hang C, Wang R L, Yang C P, Medvedeva I V, Sun Z G 2011 Acta Phys. Sin. 60 037304 (in Chinese) [陈顺生, 黄 昌, 王瑞龙, 杨昌平, Medvedeva I V, 孙志刚 2011 物理学报 60 037304]

计量
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  • PDF下载量:  358
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-05-22
  • 修回日期:  2013-07-16
  • 刊出日期:  2013-10-05

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