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Switching behavior of logic circuits by magnetic quantum cellular automata

Yang Xiao-Kuo Cai Li Zhao Xiao-Hui Feng Chao-Wen Zhang Li-Sen Kang Qiang Bai Peng

Switching behavior of logic circuits by magnetic quantum cellular automata

Yang Xiao-Kuo, Cai Li, Zhao Xiao-Hui, Feng Chao-Wen, Zhang Li-Sen, Kang Qiang, Bai Peng
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  • Received Date:  27 September 2010
  • Accepted Date:  26 December 2010
  • Published Online:  15 September 2011

Switching behavior of logic circuits by magnetic quantum cellular automata

  • 1. (1)College of Science, Air Force Engineering University, Xi’an, Shaanxi 710051, China; (2)Department of Science Research, Air Force Engineering University, Xi’an 710051, China; (3)Research Center of synthetic Electronic Information System, Air Force Engineering University, Xi’an 710051, China

Abstract: In this paper, switching behaviors of MQCA inverter and majority logic gate with various nanomagnet thicknesses and spacings are studied. Single domain approximation Landau-Lifshitz-Gilbert equation is employed to model and simulate the circuits. It is shown that thicker nanomagnet needs larger switching magnetic pulse and logic circuits comprised of thicker nanomagnet demonstrate slower switching; majority logic gate needs more time to switch than inverter when they have the same nanomagnet thicknesses and spacings. Moreover, it is also shown that nanomagnet spacing has a larger effect on switching behavior of inverter than on majority logic gate.

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