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 14 of 14 for “"Magnetic memory"”.
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A coincident-current magnetic memory unit
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Electrical Engineering, 1950.
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"Transistor-Like" Spin Nano-Switches: Physics and Applications
… has effectively integrated spintronics and nanomagnetics into a single field, creating a new class of spin-based devices that are now being widely used in magnetic memory devices. However, it is not clear if these advances could also be used to build logic devices.
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Magnetoelectric Effect in Ferroelectric-Ferromagnetic Heterostructures
… (ME) effect, a coupling effect between magnetic and electric orders, has been widely investigated, both from a fundamental science perspective and an applications point of view. Magnetoelectric composites with one piezoelectric phase and one magnetostrictive phase can be …
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Proton dynamics in ultrathin GdO𝑥H𝑦 films for magneto-ionics
… is desirable for a variety of applications, from magnetic memory, to neuromorphic computing, to solid state pixels and optical circuit components. Metal oxides can conduct ionic current, allowing their properties and those of adjacent materials to be controlled through voltage control of ion …
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Magnetic properties of small multi-layered rings
Thin film rings can be an alternative geometry of magnetic memory cells, in which data bits are stored by the chirality of the flux-closed or 'vortex' state of the ring. The absence of the stray field in the vortex state is advantageous of high density data storage. Elliptical rings with 3 / 2 pm …
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Magnetic domain walls driven by interfacial phenomena
A domain wall in a ferromagnetic material is a boundary between differently magnetized regions, and its motion provides a convenient scheme to control the magnetization state of the material. Domain walls can be confined and moved along nanostrips of magnetic thin films, which are proposed …
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EPITAXIAL SPIN-ORBIT AND MAGNETIC MATERIALS FOR INTEGRATION ONTO A SEMICONDUCTOR PLATFORM
… utilize the charge of the electron. Meanwhile, magnetic devices, based on the spin of the electron, have historically served as the backbone fordigital memory storage. In recent times, however, charge-based memories, such as flash and dynamic random access memory (DRAM), have become more …
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Reversible and Irreversible Effects of Magneto-Ionic Gating: Exchange, Anisotropy, and Magnetization
… has therefore become an urgent research focus. Magnetic storage, through voltage-controlled magnetism (VCM), uses orders of magnitude less energy than traditional current-controlled static and dynamic randomaccess memory. Herein, VCM is explored through the lens of magneto-ionics – a low-power, …
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Growth-Induced Cation Order and Magnetic Anisotropy Engineering in Iron Garnet Thin Films
… size, and improve energy efficiency. Spin-based memory devices, which encode data in a material’s magnetic state, offer a promising solution. Magnetic memory technologies are widespread today, powering devices such as memory disks, tapes, and magnetic random access memory (MRAM). While garnet …
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Exchange bias in patterned nanostructures
… in commonly used electronic components such as magnetic recording heads and magnetic memory cells, as well as novel magnetic logic and memory devices. However, the exchange bias effect has been optimized in materials and used in devices for decades without a good scientific understanding, both …
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Voltage Control of Magnetism in Novel Structured Vertically Aligned Nanocomposite Thin Films
… utilise voltage-driven ion migration to control magnetic properties, hold promise for energy-efficient, non-volatile magnetic memory and neuromorphic computing. A study of the current literature suggests that a high-surface interface and single crystalline structures could be advantageous for …
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The Interplay of Magnetism and Topology in Topological Insulators
… of magnetism into TIs focused on doping TIs with magnetic adatoms, or engineering magnetic insulator/TI interfaces to induce magnetism into the TI edge states through a proximity effect. However, as was the case with bare TI devices, fabricating devices based on such platforms is not without …
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The implementation of nanoimprint lithography for the fabrication of patterned magnetic media
… capacity of hard drives that employ longitudinal magnetic recording. Before long, the superparamagnetic effect will limit the achievable information capacity of hard drives using conventional recording. Therefore, new technologies will be needed. Perpendicular recording, one of several new …
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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
… decade there has been considerable interest 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 …