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2020•IEEE Electron Device LettersRequires access

Thermally Assisted Skyrmion Memory (TA-SKM)

Shijiang Luo, Nuo Xu, Yaoyuan Wang, Jeongmin Hong, Long You

Open publisher page 7 citations

Abstract

A novel thermally assisted skyrmion memory (TA-SKM) has been proposed and studied for the first time. Unidirectional current-induced spin transfer torque (STT) and Joule heating effect are used to induce the magnetization switching between uniform and skyrmion states in the free layer of a magnetic tunnel junction device. Physics-based simulations suggest that TA-SKM offers advantages including unipolar switching feature for cross-point memory integration, better TMR design as compared to STT-MRAM, and improved operation temperature range as compared to TA-MRAM.

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What this paper is about

A novel thermally assisted skyrmion memory (TA-SKM) has been proposed and studied for the first time. Unidirectional current-induced spin transfer torque (STT) and Joule heating effect are used to induce the magnetization switching between uniform and skyrmion states in the free layer of a magnetic tunnel junction device. Physics-based simulations suggest that TA-SKM offers advantages including unipolar switching feature for cross-point memory integration, better TMR design as compared to STT-MRAM, and improved operation temperature range as compared to TA-MRAM.

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OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A novel thermally assisted skyrmion memory (TA-SKM) has been proposed and studied for the first time. Unidirectional current-induced spin transfer torque (STT) and Joule heating effect are used to induce the magnetization switching between uniform and skyrmion states in the free layer of a magnetic tunnel junction device. Physics-based simulations suggest that TA-SKM offers advantages including unipolar switching feature for cross-point memory integration, better TMR design as compared to STT-MRAM, and improved operation temperature range as compared to TA-MRAM.

Key concepts: Magnetoresistive random-access memory, Skyrmion, Spin-transfer torque, Racetrack memory, Tunnel magnetoresistance, Magnetization, Condensed matter physics, Joule heating

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