Open AccessSwitching behavior of logic circuits by magnetic quantum cellular automata
Author(s) -
Xiaokuo Yang,
Li Cai,
Qiang Kang,
Peng Bai,
Xiaohu Zhao,
Feng Chao-Wen,
Lisen Zhang
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.098503
Subject(s) - nanomagnet , inverter , logic gate , electronic circuit , quantum dot cellular automaton , cellular automaton , physics , and gate , computer science , electrical engineering , condensed matter physics , quantum mechanics , voltage , magnetic field , engineering , algorithm , magnetization
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.