Spin transfer switching enhancement in perpendicular anisotropy magnetic tunnel junctions with a canted in-plane spin polarizer

Rachid Sbiaa*, Randall Law, Ei Leen Tan, Thomas Liew

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمقالمراجعة النظراء

54 اقتباسات (Scopus)

ملخص

We have studied spin transfer switching (STS) in a magnetic tunnel junction with perpendicular magnetic anisotropy for the reference and free layers using the Landau-Lifshitz-Gilbert formalism. We propose a multilayer structure in which the insertion of an additional spin polarizer with in-plane anisotropy can enhance the STS efficiency and switching speed of the device. It is revealed that a canted spin polarizer with an angle between 40° and 80° out of the film plane in the correct direction enhances the STS efficiency more than a fixed in-plane or perpendicular polarizer. Furthermore, we show that the spin transfer torque exerted on the in-plane polarizer layer by the free layer automatically tilts the in-plane polarizer in the direction that enhances STS for both magnetization states of the free layer.

اللغة الأصليةEnglish
رقم المقال013910
دوريةJournal of Applied Physics
مستوى الصوت105
رقم الإصدار1
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 2009
منشور خارجيًانعم

ASJC Scopus subject areas

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