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arXiv 1002.0089cond-mat.mtrl-sci
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热电控制自旋开关

Thermoelectrically Controlled Spin-Switch

S. Andersson, V. Korenivski

摘要:

对新型自旋电子器件的研究带来了控制磁性薄膜开关的新方法。在这项工作中,我们实验证明了一种基于热电控制交换耦合的设备。通过弱铁磁Ni-Cu合金的交换耦合来控制来自巨磁阻元件的读出信号。这种交换耦合示出随温度的变化而强烈变化,并且内部焦耳加热和外部加热都用于演示磁开关。该器械在热循环时未显示出降解。讨论了进一步优化器件性能的途径。我们的实验结果显示了一种新的方法来热电控制磁开关的多层膜。

英文摘要:

The search for novel spintronic devices brings about new ways to control switching in magnetic thin-films. In this work we experimentally demonstrate a device based on thermoelectrically controlled exchange coupling. The read out signal from a giant magnetoresistance element is controlled by exchange coupling through a weakly ferromagnetic Ni-Cu alloy. This exchange coupling is shown to vary strongly with changes in temperature, and both internal Joule heating and external heating is used to demonstrate magnetic switching. The device shows no degradation upon thermal cycling. Ways to further optimize the device performance are discussed. Our experimental results show a new way to thermoelectrically control magnetic switching in multilayers.

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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