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Angular Dependence of Spin Transfer Switching in Spin Valve Nanopillar Based Heusler Alloy
Joint Authors
Kaewrawang, Arkom
Siritaratiwat, Apirat
Khunkitti, Pirat
Kruesubthaworn, Anan
Mewes, Tim
Mewes, Claudia K. A.
Source
Advances in Materials Science and Engineering
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-22
Country of Publication
Egypt
No. of Pages
7
Abstract EN
The spin transfer induced magnetization switching in current perpendicular-to-the-plane spin valve nanopillar based Co2FeAl0.5Si0.5 Heusler alloy with varying the initial angles of the magnetization of sensing layer, θ0, was investigated via macrospin simulations.
The effects of an in-plane magnetic field, Hi, on the switching behavior were also evaluated.
The magnetization switching was excited by spin polarized switching current, Is.
The time varying magnetization was computed by the Landau-Lifshitz-Gilbert-Slonczewski equation, while the spin transfer induced noise was examined by using the power spectral density analysis.
It was found that θ0 should be narrowly initialized since this configuration produces the small noise during the switching.
Also, the negative Is produced more uniform switching than the positive Is due to existence of ferromagnetic exchange coupling.
When Hi was presented, the noise generated at low frequencies could be suppressed, and then the switching behavior became more uniform.
In addition, the results indicated that the noise configuration could be explained by the physical dynamic of magnetization behavior.
Hence, the spin transfer induced noise needs to be minimized in order to improve the performance of spin transfer torque random access memory for high density recording.
American Psychological Association (APA)
Khunkitti, Pirat& Kruesubthaworn, Anan& Kaewrawang, Arkom& Mewes, Tim& Mewes, Claudia K. A.& Siritaratiwat, Apirat. 2016. Angular Dependence of Spin Transfer Switching in Spin Valve Nanopillar Based Heusler Alloy. Advances in Materials Science and Engineering،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1096079
Modern Language Association (MLA)
Khunkitti, Pirat…[et al.]. Angular Dependence of Spin Transfer Switching in Spin Valve Nanopillar Based Heusler Alloy. Advances in Materials Science and Engineering No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1096079
American Medical Association (AMA)
Khunkitti, Pirat& Kruesubthaworn, Anan& Kaewrawang, Arkom& Mewes, Tim& Mewes, Claudia K. A.& Siritaratiwat, Apirat. Angular Dependence of Spin Transfer Switching in Spin Valve Nanopillar Based Heusler Alloy. Advances in Materials Science and Engineering. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1096079
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1096079