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首页> 外文期刊>Crystal growth & design >Strain-Mediated Converse Magnetoelectric Coupling in La0.7Sr0.3MnO3/Pb(Mg1/3Nb2/3)O-3-PbTiO3 Multiferroic Heterostructures
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Strain-Mediated Converse Magnetoelectric Coupling in La0.7Sr0.3MnO3/Pb(Mg1/3Nb2/3)O-3-PbTiO3 Multiferroic Heterostructures

机译：应变介导的LA0.7SR0.3MNO3 / PB（MG1 / 3NB2 / 3）O-3-PBTIO3多重异质结构的逆磁电耦合

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摘要

The converse magnetoelectric (ME) coupling of a La0.7Sr0.3MnO3 (LSMO) thin film, deposited on piezoelectric Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) single crystal substrate by the pulsed laser deposition (PLD) technique, was investigated by magneto-optical Kerr effect (MOKE) system. Because of the piezoelectric nature of the PMN-PT, the strain status of the LSMO thin film is tunable by the electric field applied on the substrate, as it is well-known that the Manganite thin film has very strong electron-phonon interaction; thus, the magnetic property change as a function of external electric field can be realized. The change of the Kerr signal of LSMO film upon applying direct current (DC) voltage to the PMN-PT single crystal was recorded. In particular, the voltage-induced change of the Kerr signal in the LSMO by applying the alternative current (AC) actuation voltage bias to the PMN-PT single crystal can be in situ recorded without external magnetic fields. The gained Kerr signal versus voltage loop basically tracks the electromechanical strain curve of the PMN-PT single crystal, distinctly certifying that a converse ME coupling in Manganite/piezoelectric heterostructures is mediated by strain rather than the interfacial effect.
机译：通过脉冲激光沉积（通过磁光克尔效应（MOKE）系统研究了PLD）技术。由于PMN-PT的压电性质，LSMO薄膜的应变状态可通过施加在基板上的电场调谐，因为众所周知，锰岩薄膜具有非常强的电子 - 声子相互作用;因此，可以实现作为外部电场的函数的磁性变化。记录了LSMO膜的kerr信号在将直流（DC）电压施加到PMN-PT单晶时的变化。特别地，通过将​​替代电流（AC）致动电压偏压施加到PMN-PT单晶的替代电流（AC）致动电压偏压的电压引起的变化可以在没有外部磁场的情况下原位。所获得的KERR信号与电压回路基本上跟踪PMN-PT单晶的机电应变曲线，明显证明锰矿/压电异质结构中的逆转录偶联通过应变而不是界面效应介导。

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  • 来源
    《Crystal growth & design》 |2018年第10期|共6页
  • 作者

    Xu Hang; Feng Ming; Liu Mei; Sun Xiaodong; Wang Li; Jiang Liyue; Zhao Xue; Nan Cewen; Wang Aopei; Li Haibo;

  • 作者单位

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

    Tsinghua Univ Sch Mat Sci &

    Engn State Key Lab New Ceram &

    Fine Proc Beijing 100084 Peoples R China;

    Harbin Inst Technol Inst Adv Ceram Mat Sci &

    Engn Harbin 150001 Heilongjiang Peoples R China;

    Jilin Normal Univ Key Lab Funct Mat Phys &

    Chem Minist Educ Changchun 130103 Jilin Peoples R China;

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  • 正文语种 eng
  • 中图分类 晶体学;
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