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arXiv 1101.2222cond-mat.mes-hall
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混合自旋电子学和应变电子学:用于超低能量计算和信号处理的磁技术

Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing

Kuntal Roy, Supriyo Bandyopadhyay, Jayasimha Atulasimha

摘要:

作者表明,磁致伸缩/压电多铁性单畴形状各向异性纳米磁体的磁化可以用在磁致伸缩层中产生应变的非常小的电压来切换。这可以成为超低功耗计算和信号处理的基础。通过适当的材料选择,如果分隔两个稳定磁化方向的能量势垒是$\sim$ 32 $kT$,则对于$\sim$ 100 ns的切换延迟,每个切换事件耗散的能量可以在室温下减少到$\sim$ 45 $kT$,并且对于$\sim$ 10 ns的切换延迟,减少到$\sim$ 70 $kT$。这种设备可以通过专门从环境中收集能量来供电,而不需要电池。

英文摘要:

The authors show that the magnetization of a magnetostrictive/piezoelectric multiferroic single-domain shape-anisotropic nanomagnet can be switched with very small voltages that generate strain in the magnetostrictive layer. This can be the basis of ultralow power computing and signal processing. With appropriate material choice, the energy dissipated per switching event can be reduced to $\sim$45 $kT$ at room temperature for a switching delay of $\sim$100 ns and $\sim$70 $kT$ for a switching delay of $\sim$10 ns, if the energy barrier separating the two stable magnetization directions is $\sim$32 $kT$. Such devices can be powered by harvesting energy exclusively from the environment without the need for a battery.

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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