Majority logic gate for 3D magnetic computing
Majority logic gate for 3D magnetic computing
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DOI：
10.1088/0957-4484/25/33/335202
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发表时间：
2014-08-22
期刊：
影响因子：
3.5
通讯作者：
Becherer, Markus
中科院分区：
文献类型：
--
作者：
Eichwald, Irina;Breitkreutz, Stephan;Becherer, Markus
几十年来，微电子电路一直完全由晶体管构成。另一种方法是使用纳米级磁体来实现数字电路。这种被称为纳米磁逻辑（NML）的技术可以在功耗和集成密度方面提供显著的改进。NML的其他优点是：非挥发性，抗辐射性和在室温下操作。最近的研究集中在纳米磁体的三维（3D）集成。在这里，我们首次展示了3D可编程磁逻辑门。它的计算操作是基于以3D方式排列的物理场相互作用的纳米级磁体。磁体具有表示布尔逻辑状态“0”和“1”的双磁化状态。磁光和磁力显微镜测量证明了门在许多计算周期中的正确操作。此外，微磁模拟证实了正确的功能的门，即使是在纳米域的大小。所提出的设备展示了NML的三维数字计算的潜力，使最高的集成密度。
For decades now, microelectronic circuits have been exclusively built from transistors. An alternative way is to use nano-scaled magnets for the realization of digital circuits. This technology, known as nanomagnetic logic (NML), may offer significant improvements in terms of power consumption and integration densities. Further advantages of NML are: non-volatility, radiation hardness, and operation at room temperature. Recent research focuses on the three-dimensional (3D) integration of nanomagnets. Here we show, for the first time, a 3D programmable magnetic logic gate. Its computing operation is based on physically field-interacting nanometer-scaled magnets arranged in a 3D manner. The magnets possess a bistable magnetization state representing the Boolean logic states '0' and '1.' Magneto-optical and magnetic force microscopy measurements prove the correct operation of the gate over many computing cycles. Furthermore, micromagnetic simulations confirm the correct functionality of the gate even for a size in the nanometer-domain. The presented device demonstrates the potential of NML for three-dimensional digital computing, enabling the highest integration densities.