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Theoretical study and experimentation of magnetic quantum-dot cellular automata corner structure

Yang Xiao-Kuo Cai Li Kang Qiang Li Zheng-Cao Chen Xiang-Ye Zhao Xiao-Hui

Theoretical study and experimentation of magnetic quantum-dot cellular automata corner structure

Yang Xiao-Kuo, Cai Li, Kang Qiang, Li Zheng-Cao, Chen Xiang-Ye, Zhao Xiao-Hui
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  • Received Date:  07 November 2011
  • Accepted Date:  10 May 2012
  • Published Online:  05 May 2012

Theoretical study and experimentation of magnetic quantum-dot cellular automata corner structure

  • 1. College of Science, Air Force Engineering University, Xi'an 710051, China;
  • 2. Department of Science Research, Air Force Engineering University, Xi'an 710051, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant No. 61172043), the Key Program of Shaanxi Provincial Natural Science for Basic Research (Grant No. 2011JZ015), and the Science and Technology Innovation Program for Graduates of Air Force Engineering University.

Abstract: Magnetic quantum-dot cellular automata (MQCA) corner structure consists of both ferromagnetic coupling and anti-ferromagnetic coupling. Signal propagation of corner structure for magnetic material Fe is theoretically investigated by applying an external clocking field method. Magnetization evolution image on signal propagation of the corner is presented by micromagnetic simulation; it is shown that Fe nanomagnets can ensure stable switching of corner including two kinds of lengthy coupling. The proposed corner structure is then fabricated by electron beam lithography, thermal evaporation and lift-off technologies. Scanning electron microscopy and magnetic force microscopy measurement results demonstrate perfect pattern and correct signal propagation of two types of coupling.

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