Nanomagnetic Logic: Error-Free, Directed Signal Transmission by an Inverter Chain
Nanomagnetic Logic: Error-Free, Directed Signal Transmission by an Inverter Chain
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纳米磁逻辑：通过逆变器链进行无差错、定向信号传输
DOI：
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发表时间：
2012
影响因子：
2.1
通讯作者：
M. Becherer
中科院分区：
文献类型：
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作者：
I. Eichwald;A. Bartel;J. Kiermaier;S. Breitkreutz;G. Csaba;D. Schmitt;M. Becherer
在本文中，我们提出了一种通过聚焦离子束工程 Co/Ni 纳米磁体的反相器链进行非互易信息传输的新时钟方法。时钟方法的功能已通过实验证明。使用局部聚焦离子束照射来定义信息流的方向。该链的纳米点由全局外部场同步计时。由于场耦合，信息在相邻点之间同步传输。磁力显微镜用于揭示每个场脉冲后纳米磁体的磁化状态，以证明信号的正确传输。使用磁光克尔效应对所制造的纳米点的开关特性和相邻点之间的耦合力进行光学分析。详细解释了现场耦合逆变器链中可能出现的错误。
In this paper we present a new clocking method for non-reciprocal information transmission by an inverter chain of focused ion-beam engineered Co/Ni nanomagnets. The functionality of the clocking method is proven experimentally. Local focused ion-beam irradiation is used in order to define the direction of the information flow. The nanodots of the chain are clocked synchronously by a global external field. Information is transmitted synchronously between neighboring dots due to field-coupling. Magnetic force microscopy is used to reveal the magnetization state of the nanomagnets after every field pulse to prove the correct transmission of the signal. The switching characteristics of the fabricated nanodots and coupling forces between neighboring dots are analyzed optically using the magneto-optical Kerr effect. A detailed explanation is given for the occurrence of possible errors in a field coupled inverter chain.