Spin-torque oscillators based on the excitation of bubble-like solitons

Author

Puliafito, Vito ; Giordano, A. ; Azzerboni, Bruno ; Carpentieri, Michele

Author_Institution

Dept. of Electron. Eng., Univ. of Messina, Messina, Italy

fYear

2014

fDate

18-19 Sept. 2014

Firstpage

1

Lastpage

4

Abstract

Perpendicular nanomagnets can host complex bubble-like dynamics driven by the localized injection of a spin-polarized current. This kind of dynamics is here fully analyzed, by means of micromagnetic simulations, in two typical spintronic geometries: confined point-contact spin-valve and extended nano-contact oscillator. The multi-approach analysis gets information from the time domain signal, its frequency spectrum, the magnetization configuration, the spatial mode distribution and the wavelet analysis.

Keywords

magnetoelectronics; micromagnetics; nanomagnetics; oscillators; solitons; torque; bubble-like dynamics; bubble-like soliton excitation; extended nanocontact oscillator; magnetization configuration; micromagnetic simulation; perpendicular nanomagnet; point-contact spin-valve; spatial mode distribution; spin-polarized current injection; spin-torque oscillator; spintronic geometry; Decision support systems; Oscillators; droplet; magnetic bubbles; micromagnetic modeling; oscillators; self-modulation; simulations; spintronics;

fLanguage

English

Publisher

ieee

Conference_Titel

AEIT Annual Conference - From Research to Industry: The Need for a More Effective Technology Transfer (AEIT), 2014

Conference_Location

Trieste

Print_ISBN

978-8-8872-3724-5

Type

conf

DOI

10.1109/AEIT.2014.7002041

Filename

7002041