Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing
Hybrid spintronics and straintronics: A magnetic technology for ultra low energy computing and signal processing
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DOI：
10.1063/1.3624900
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发表时间：
2011-08-08
影响因子：
4
通讯作者：
Atulasimha, Jayasimha
中科院分区：
文献类型：
--
作者：
Roy, Kuntal;Bandyopadhyay, Supriyo;Atulasimha, Jayasimha
作者表明，2相磁致伸缩/压电多铁性单畴形状各向异性纳米磁体的磁化强度可以用非常小的电压进行切换，从而在磁致伸缩层中产生应变。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类似于32 kT，则对于类似于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类似于45 kT，并且对于类似于10 ns的切换延迟，每个切换事件耗散的能量可以减少到类似于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。(C)2011年美国物理学会。[doi：10.1063/1.3624900]
The authors show that the magnetization of a 2-phase 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 similar to 45 kT at room temperature for a switching delay of similar to 100 ns and similar to 70 kT for a switching delay of similar to 10 ns, if the energy barrier separating the two stable magnetization directions is similar to 32 kT. Such devices can be powered by harvesting energy exclusively from the environment without the need for a battery. (C) 2011 American Institute of Physics. [doi:10.1063/1.3624900]