Low power on-chip clocking for nanomagnetic logic circuits

Micro & nano letters

article

Mingliang Zhang¹  Li Cai¹  Xiaokuo Yang¹  Huanqing Cui¹  Zhichun Wang¹  Chaowen Feng¹  Sen Wang¹ 

[1] College of Science, Air Force Engineering University

关键词: nanomagnetics;    logic circuits;    exchange interactions (electron);    ferromagnetic materials;    claddings;    magnetisation;    magnetic switching;    micromagnetics;    low power on-chip clocking;    nanomagnetic logic circuits;    exchange interaction;    current-carrying copper wire;    ferromagnetic cladding;    yoked cladding clocking;    external magnetic field;    magnetisation switching;    Maxwell simulation;    power consumption;    micromagnetic simulation;    nanomagnetic chain;    functional state;   

DOI  :  10.1049/mnl.2014.0323

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

It is demonstrated that it is possible to switch the magnetisation of nanomagnets by employing the exchange interaction between magnets. This can implement on-chip clocking for nanomagnetic logic circuits by using a current-carrying copper wire circularly wrapped by ferromagnetic cladding. This scheme is potentially more energy efficient than yoked cladding clocking using an external magnetic field for magnetisation switching. Maxwell simulation shows that current flowing through copper wire can be reduced by about one hundred times compared with yoked clocking, which means power consumption could be lowered by 104 times. Micromagnetic simulation shows that the nanomagnetic chain aligned on the proposed clocking can achieve a correct functional state.

【 授权许可】

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