Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/141007
Title: Effects of the Zhang-Li Torque on Magnetic Droplet Solitons
Author: Albert Iglesias, Jan
Director/Tutor: Hernández Ferràs, Joan Manel
Keywords: Solitons
Oscil·ladors elèctrics
Treballs de fi de grau
Solitons
Electric oscillations
Bachelor's thesis
Issue Date: Jun-2019
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
Note: Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2019, Tutor: Joan Manel Hernàndez Ferràs
URI: http://hdl.handle.net/2445/141007
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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