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ALBERT IGLESIAS Jan.pdf (788.33 KB)

Document type

Bachelor thesis

Publication date

2019-06

Publication license

cc-by-nc-nd (c) Albert, 2019
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/141007

Effects of the Zhang-Li Torque on Magnetic Droplet Solitons

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Abstract

Spin-transfer nano-oscillators are devices in which spin-transfer torques can generate localized spin waves (dissipative solitons) called magnetic droplet solitons. We have studied the specific effects of the Zhang-Li torque on these solitons. To do so, we have analytically solved for an accurate electric current distribution and its Oersted fields and we have then used mumax3 to get the evolution of the magnetization. We have found that this torque either enlarges or shrinks droplets and also raises or lowers generation current thresholds depending on the configuration of the device. In addition, we have eventually outlined a method for controlling the relative impact of this torque

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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2019, Tutor: Joan Manel Hernàndez Ferràs

Subject

Solitons, Oscil·ladors elèctrics, Treballs de fi de grau

Subject (English)

Solitons, Electric oscillations, Bachelor's theses

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Treballs Finals de Grau (TFG) - Física

Citation

ALBERT IGLESIAS, Jan. Effects of the Zhang-Li Torque on Magnetic Droplet Solitons. [consulted: 10 of August of 2026]. Available at: https://hdl.handle.net/2445/141007

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