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Magnetodynamics of pseudo spin valves investigated using co-planar waveguide and spin torque ferromagnetic resonance techniques

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Title: Magnetodynamics of pseudo spin valves investigated using co-planar waveguide and spin torque ferromagnetic resonance techniques
Authors: Fazlali, Masoumeh
Issue Date: 17-May-2017
University: Göteborgs universitet. Naturvetenskapliga fakulteten
Institution: Department of Physics ; Institutionen för fysik
Parts of work: I. M. Fazlali et. al, “Homodyne-detected ferromagnetic resonance of in-plane magnetized nanocontacts: Composite spin-wave resonances and their excitation mechanism”, Physical Review B93(2016), 134427.

II. M. Fazlali et. al, “Tuning exchange-dominated spin-waves using lateral current spread in nano-contact spin torque nano-oscillators”, manuscript in preparation for Applied Physics Letters.

III. M. Fazlali et. al “Tunable spin pumping in exchange coupled magnetic trilayers”, manuscript in preparation for Physical Review Letters.

IV. M. Fazlali et. al “ From individual to collective behavior in the multilayered magnetic structure in the vicinity of resonance coincidence point. Broadband FMR measurements of the Co/Cu/Py trilayers” manuscript in preparation for Physical Review B.

V. M. Fazlali et. al " Effect of the microwave current on resonances of coupled Py/Cu/Co trilayers in oblique magnetic fields”, manuscript in preparation for Nature communication.
Date of Defence: 2017-06-08
Disputation: 6/8/2017 , 13:00 - 15:00 , Chalmers tekniska högskola, Chalmersplatsen 1 PJ-salen, Fysikgården 2B (Fysik Origo, chalmersområdet
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: Spintronics
Nanocontact pseudo spin valve
Spin waves
Oersted field
Interlayer exchange coupling
Acoustic and optical modes
Spin pumping
Spin transfer torque
Slonczewski mode
Collective mode
Abstract: Nanocontact spin-torque nano-oscillators (NC-STNOs), based on magnetic multilayers, can generate a wide range of highly nonlinear localized and propagating spin wave modes for use in magnonics. In this thesis, we study some aspects of these structures from the fundamental physics point of view using the spin torque ferromagnetic resonance technique (ST-FMR) and conventional broadband FMR technique. The structure under focus is Co/Cu/Py pseudo-spin-valves (pSV). The thesis is thematically divided... more
ISBN: 978-91-629-0226-1(printed)
978-91-629-0225-4 (pdf)
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för fysik



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