Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"Spin-orbit Torques"”.
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Interface-driven spin-orbit torques in magnetic heterostructures
The connection between charge and spin transport in solid state materials offers new techniques for generating and detecting spin currents and could potentially allow high-performance memory and logic devices. Simple multilayer thin films or "heterostructures" such as Pt/Co have broken inversion …
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Practical Pathways to Efficient MRAM: Spin-Orbit Torques, Low-Damping, and Anomalous Hall Conductivity in Polycrystalline Materials
… single-layer with modest anti-damping spin-orbit torque (SOT), $θ_{DL} ≈ 0.05. Here, we investigate an alternative approach to the traditional heavy metal/ferromagnet bilayer to produce SOTs, which suffers from high-damping that is detrimental to energy-efficiency. Instead, of breaking …
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Electrical control of spin dynamics in spin-orbit coupled ferromagnets
… In materials with broken inversion symmetry and spin-orbit coupling, electrical current can exert a torque on a local magnetisation. In the studies presented here, a microwave current-induced ferromagnetic resonance (spin-orbit FMR) technique is used to characterise the dynamical magnetic …
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Quantitative study on current-induced effects in an antiferromagnetic insulator/Pt bilayer film
… a full understanding of the recent prototypical spinorbit torque antiferromagnetic memory devices requires more quantitative and systematic study. In this thesis, we study the current-induced switching in a canted antiferromagnetic insulator [alpha]-Fe2O3. The (0001) oriented films were …
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Current-induced Dynamics of Easy-Plane Antiferromagnets
… the current-induced dynamics, especially the spin-orbit-torque switching dynamics. To realize a practical antiferromagnetic memory device, we must overcome the challenge. In this PhD Thesis, I discussed about the systematic and quantitative study of a model material, collinear easy-plane …
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Room temperature spin-orbit torque switching induced by a topological insulator
… have attracted great attention due to the rich spin-orbit physics and promising applications in spintronic devices. The strongly spin-moment coupled electronic states have been extensively pursued to realize efficient spin-orbit torque switching. However, so far current-induced magnetic …
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Optical studies of current-induced spin-orbit effects in magnetic systems
… of magnetic moments is essential for future spintronics applications, in which the intrinsic spin of the electron is utilized in addition to the electron charge for data processing and storage. Spin-orbit-interaction-induced phenomena, including the spin Hall effect, Rashba-Edelstein effect …
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Current-induced torques in ferromagnets at room temperature
… resonance to explore the current-induced torques (CITs) in two different systems, namely YIG/heavy metal bilayers and bulk NiMnSb, at room temperature. We apply a microwave current to the sample while sweeping the external magnetic field, and measure the longitudinal DC voltage. From a …
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Detection of antiferromagnetic domain reversal in epitaxial insulating oxides
… played a passive role as biasing layers in spintronics applications due to the challenges in manipulating and detecting the magnetic order. However, substituting ferromagnets by antiferromagnets as active switching elements in data storage devices offers the potential for ultrafast dynamics, …
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Study of growing incongruent antiferromagnetic single crystals and characterization
… are gaining increased attention as potential spintronic materials with faster switching rates compared to conventional ferromagnets. Recently reported studies have demonstrated partial switching of the Néel vector of antiferromagnetic CuMnAs and Mn2Au with current-induced spin-orbit torques. …
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Spectroscopy of Topological Materials and their Technological Applications
… size. Finally, we showcase some research into spintronic-related logic and memory applications due to the generation of large spin-orbit-torques in these materials resulting in efficient current-driven switching capabilities. We conclude by presenting an outlook of future research directions in …
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Spin-torque-driven magnetization dynamics for neuromorphic functionality
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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Investigation of spin-caloric and spin-orbit torque materials by vectorial spin Seebeck measurements and an advanced x-ray magnetic reflectivity analysis
… in magnetic Heusler compounds in the field of spintronics based on their wide range of magnetic properties and susceptibility to manipulation by elemental substitution. In particular half-Heusler alloys are currently attracting growing attention due to their non-centrosymmetric C1b magnetic …