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 7 of 7 for “"ferromagnetic insulator"”.
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Realisation of De Gennes’ Absolute Superconducting Switch and Magnetic Exchange Field Effects at Metallic and Superconductor Interfaces
… effects at interfaces between a chalcogenide ferromagnetic insulator (EuS) and both superconducting and metallic thin-films exhibiting spin-orbit coupling. Firstly, we demonstrate an absolute superconducting switch, confirming a prediction by Pierre-Gilles de Gennes in 1966. This is achieved …
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Interface-driven spin-orbit torques in magnetic heterostructures
… transport. I demonstrated SOT switching of a ferromagnetic insulator for the first time. I also developed a temperature-controlled, high-speed electrical and optical measuring system to observe record-breaking DW velocity in ferrimagnetic GdCo. This thesis focuses on building experimental …
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Atomic structures and properties of oxide interfaces
… between La₀.₉Ba₀.₁MnO₃ (LBMO) and STO. LBMO is a ferromagnetic insulator with a relatively high ferromagnetic transition temperature, which makes it an ideal material for spintronics applications. However, thin films of LBMO are conductive except when the thickness is less than eight unit cells. …
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Investigation of magnetic interactions in topological insulators
Topological insulators are a category of phases in condensed matter with inverted conduction and valence bands, which is protected by time reversal symmetry. As a result, the bulk keeps insulating while the surface supports an exotic high-mobility spin-polarized electronic states. Introducing …
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Topological Insulators Interfaced with Trivial and Ferromagnetic Insulators. Selective contact and patterning of surface states.
Topological insulators (TIs) are a novel class of material which host helical surface states with exciting and unique electronic properties. They can provide insights into new physics and also pave the way for potential spintronic applications. Much work has been done to identify and characterise …
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New ways to tune the multi-functionality of oxide thin films for memory applications
… random access memory (RRAM) devices. Second, the ferromagnetic insulating (FMI) and metallic (FMM) properties of La0.9Ba0.1MnO3 (LBMO) are tuned using VAN. La0.9Ba0.1MnO3 is FMI in bulk but usually shows metallicity in plain films. By using VAN consisting of CeO2 nanocolumns embedded in a …
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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
… to become magnetic in the proximity to the ferromagnetic PtMnSb. This magnetic proximity effect (MPE) is another key aspect in spintronics and of particular importance since it can prevent the generation of pure spin currents or induce secondary magnetoresistive effects. In order to …