Spin Rectification and Electrically Controlled Spin Transport in Molecular-Ferroelectrics-Based Spin Valves
Spin Rectification and Electrically Controlled Spin Transport in Molecular-Ferroelectrics-Based Spin Valves
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DOI：
10.1103/physrevapplied.13.064011
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发表时间：
2020-06
影响因子：
4.6
通讯作者：
Yuewei Yin;Xuanyuan Jiang;M. Koten;J. Shield;Xuegang Chen;Yu Yun;A. N’Diaye;X. Hong;Xiaoshan Xu
中科院分区：
文献类型：
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作者：
Yuewei Yin;Xuanyuan Jiang;M. Koten;J. Shield;Xuegang Chen;Yu Yun;A. N’Diaye;X. Hong;Xiaoshan Xu
作者：Yin，Y; Yin，Y; Jiang，X; Koten，MA; Shield，JE; Chen，X; Yun，Y; N'Diaye，AT; Hong，X; Xu，X|摘要：我们报道了自旋阀结构中的自旋整流效应，该结构由铁电体克酮酸（C5 H2O 5）夹在铁磁电极La 0.7Sr 0.3MnO 3和Co之间组成，可以通过极化电压在高阻（关）和低阻（开）状态之间切换。在关断状态下，磁阻（MR）符号与测量电压反转，偏移为0.1 V，表明自旋整流行为，而在导通状态下，MR保持为负。这些观察结果可以被理解的电控界面能带排列无论是从静电效应或从界面氧化还原过程。所观察到的自旋整流效应表明自旋极化电流的二极管状器件的可能性。
Author(s): Yin, Y; Yin, Y; Jiang, X; Koten, MA; Shield, JE; Chen, X; Yun, Y; N'Diaye, AT; Hong, X; Xu, X | Abstract: We report a spin-rectification effect in a spin-valve structure consisting of ferroelectric croconic acid (C5H2O5) sandwiched between ferromagnetic electrodes La0.7Sr0.3MnO3 and Co, which can be switched between a high-resistance (off) and a low-resistance (on) state by a poling voltage. In the off state, the magnetoresistance (MR) sign reverses with the measurement voltage with a 0.1-V offset, suggesting a spin-rectification behavior, while in the on state the MR remains negative. These observations can be understood in terms of electrically controlled interfacial energy-band alignment either from the electrostatic effect or from the interfacial redox process. The observed spin-rectification effect suggests the possibility of diodelike devices for spin-polarized current.