DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Shin, Mincheol | - |
dc.contributor.advisor | 신민철 | - |
dc.contributor.author | Byun, Jihun | - |
dc.date.accessioned | 2022-04-27T19:31:20Z | - |
dc.date.available | 2022-04-27T19:31:20Z | - |
dc.date.issued | 2021 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=948713&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/296004 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2021.2,[ix, 58 p. :] | - |
dc.description.abstract | We demonstrate the effect of shape deformation in spin-orbit torque magnetic random access memory (SOT-MRAM) based on micromagnetic simulation by generating 1000 randomly deformed samples using the exponentially decaying autocorrelation function. The conventional in-plane magnetic field-assisted SOT write scheme and the recently proposed spin-transfer torque-spin-orbit torque (STT-SOT) write scheme were simulated and compared with the effect of the Gilbert damping constant ($\alpha$) considered in the presence and the absence of the Dzyaloshinskii-Moriya interaction (DMI) and stray field. We found that shape deformation of the MTJ can result in write failure or degradation of the switching time. To compensate the device-to-device performance variation induced by the shape deformation, the condition of high alpha and the presence of the DMI is desired for the magnetic field-assisted write scheme. The STT-SOT write scheme shows slight improvement in the switching performance for the larger alpha and shows write failure when the stray field is present while it retains 100% switching probability even with small alpha regardless of the DMI. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Spintronics device▼aSTT-MRAM▼aSOT-MRAM▼aMicromagnetic simulation▼aMTJ | - |
dc.subject | 스핀트로닉스 소자▼a스핀 전달 토크 자성메모리▼a스핀 궤도 토크 자성메모리▼a마이크로마그네틱 전산모사▼a자기 터널 접합 | - |
dc.title | Geometric variance studies of spin-orbit torque magnetic random access memory | - |
dc.title.alternative | 기하학적 변형에 따른 스핀 궤도 토크 자기 임의 접근 기억장치 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :전기및전자공학부, | - |
dc.contributor.alternativeauthor | 변지훈 | - |
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