Parameter variation investigation of Magnetic Tunnel Junctions

Jian Feng Kong*, Kwaku Eason, Kim Piew Tan, Rachid Sbiaa

*المؤلف المقابل لهذا العمل

نتاج البحث

1 اقتباس (Scopus)

ملخص

Magnetic Tunnel Junction (MTJ) is a widely used spintronics structure in many applications. The tunneling magneto-resistance (TMR) is an important metric indicating MTJ sensitivity, and modeling this phenomenon is nontrivial, owing to the complicated nature of spin dependent tunneling. Deploying numerical tools such as OOMMF and SpinFlow3D software, which treats tunneling by way of a voltage-dependent areal conductance, we study properties of MTJs, such as TMR, varying a number of parameters, including MTJ stack taper angle, parameters of voltage-dependent areal conductance associated with the MgO barrier, and other parameters accessible in the model, including bias and coercive field behavior based on geometrical parameters. We find that a taper angle, which is a consequence of fabrication processes, has negligible effect on TMR. Additionally, it is shown that the current distributions in MTJs, when a bias voltage is applied, is actually nonuniform. We also show that introducing geometrical artifacts in the structure can strongly influence properties such as coercive and bias fields in MTJs.

اللغة الأصليةEnglish
عنوان منشور المضيف2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference
العنوان الفرعي لمنشور المضيفA Strong Tradition. An Exciting New Look!
حالة النشرPublished - 2012
منشور خارجيًانعم
الحدث2012 Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look!, APMRC 2012 - Singapore
المدة: أكتوبر ٣١ ٢٠١٢نوفمبر ٢ ٢٠١٢

سلسلة المنشورات

الاسم2012 Digest APMRC - Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look!

Other

Other2012 Asia-Pacific Magnetic Recording Conference: A Strong Tradition. An Exciting New Look!, APMRC 2012
الدولة/الإقليمSingapore
المدينةSingapore
المدة١٠/٣١/١٢١١/٢/١٢

ASJC Scopus subject areas

  • ???subjectarea.asjc.2500.2504???

بصمة

أدرس بدقة موضوعات البحث “Parameter variation investigation of Magnetic Tunnel Junctions'. فهما يشكلان معًا بصمة فريدة.

قم بذكر هذا