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논문 기본 정보

자료유형
학술저널
저자정보
Andrew Lyle (University of Alabama) Yang-Ki Hong (University of Alabama) Byoung-Chul Choi (University of Victoria) Gavin Abo (University of Alabama) Seok Bae (University of Alabama) Jeevan Jalli (University of Alabama) Jae-jin Lee (University of Alabama) Mun-Hyoun Park (Hitachi Global Storage Technologies) Ryan Syslo (University of Alabama)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.15 No.3
발행연도
2010.9
수록면
103 - 107 (5page)

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초록· 키워드

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We investigated spin-polarized current switching of Pac-man type Ⅱ (PM-Ⅱ) nanoelements in Pac-man shaped nanoscale spin-valves (Co/Cu/Py) using micromagnetic simulations. The effects of slot angle and antiferromag-netic (AFM) layer were simulated to obtain optimum switching in less than 2 ns. At a critical slot angle of 105˚, the lowest current density for anti-parallel to parallel (AP-P) switching was observed due to no vortex or antivortex formation during the magnetic reversal process. All other slot angles for AP-P formed a vortex or antivortex during the magnetization reversal process. Additionally, a vortex or anti-vortex formed for all slot angles for parallel to anti-parallel (P-AP) switching. The addition of an AFM layer caused the current density to decrease significantly for AP-P and P-AP at slot angles less than 90˚. However, at slot angles greater than 90˚, the current density tended to decrease by less amounts or actually increased slightly as shape anisotropy became more dominant. This allowed ultra-fast switching with 5.05 and 5.65 x 10? A/㎠ current densities for AP-P and P-AP, respectively, at a slot angle of 105˚.

목차

1. Introduction
2. Simulation
3. Results and Discussion
4. Conclusion
Acknowledgement
References

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