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Electric-Field-Controlled MRAM: Physics and Applications

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Emerging Non-volatile Memory Technologies

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Abstract

This chapter provides a comprehensive overview of the electric-field (or voltage) control of magnetic anisotropy, an emerging concept for the next-generation memory device. This approach has many technological appeals as it can enable ultra-low-latency data transfer and ultra-low power electronics. The underlying mechanisms governing magnetization switching from an applied electric-field are interfacial spin-charge coupling and Larmor precession. This allows for electric-field-driven MRAM as opposed to current-driven in conventional spin-torque MRAM. An exhaustive discussion in particular relevance to industry-friendly materials is provided in this chapter. The challenges in implementation and possible solutions including field-free approach are discussed. The chapter summarises the experimental and theoretical progress in electric-field-controlled MRAM, discusses our current understanding, and finally presents the prospects of utilising this approach.

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Authors and Affiliations

  1. Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), #08-03, 2 Fusionopolis Way, Innovis, 138634, Singapore

    James Lourembam

  2. Taiwan Semiconductor Manufacturing Company, 168 Park Ave. 2, Hsinchu Science Park, Hsinchu, 300-75, Taiwan ROC

    Jiancheng Huang

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  1. School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore

    Wen Siang Lew

  2. School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore

    Gerard Joseph Lim

  3. School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore

    Putu Andhita Dananjaya

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Lourembam, J., Huang, J. (2021). Electric-Field-Controlled MRAM: Physics and Applications. In: Lew, W.S., Lim, G.J., Dananjaya, P.A. (eds) Emerging Non-volatile Memory Technologies. Springer, Singapore. https://doi.org/10.1007/978-981-15-6912-8_4

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