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arXiv 1406.6935cond-mat.mes-hall
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具有电压调谐谐振的自旋力矩二极管射频检测器

Spin-torque diode radio-frequency detector with voltage tuned resonance

Witold Skowroński, Marek Frankowski, Jerzy Wrona, Tomasz Stobiecki, Piotr Ogrodnik, Józef Barnaś

摘要:

我们报道了一种基于磁性隧道结(MTJ)的电压可调谐射频(RF)探测器。自旋扭矩二极管效应用于激励和/或检测MTJ的磁性自由层中的RF振荡。为了降低自由层的整体面内磁各向异性,我们利用铁磁层和绝缘层之间界面处的垂直磁各向异性。所施加的偏置电压示出的磁各向异性,从而对设备的谐振频率有显着的影响。这种影响还取决于电压极性。所得到的结果占的自旋转移力矩和电压控制的磁各向异性效应的相互作用。

英文摘要:

We report on a voltage tunable radio-frequency (RF) detector based on a magnetic tunnel junction (MTJ). The spin-torque diode effect is used to excite and/or detect RF oscillations in the magnetic free layer of the MTJ. In order to reduce the overall in-plane magnetic anisotropy of the free layer, we take advantage of the perpendicular magnetic anisotropy at the interface between ferromagnetic and insulating layers. The applied bias voltage is shown to have a significant influence on the magnetic anisotropy, and thus on the resonance frequency of the device. This influence also depends on the voltage polarity. The obtained results are accounted for in terms of the interplay of spin-transfer-torque and voltage-controlled magnetic anisotropy effects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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