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 force microscopy (MFM)"”.
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CRYOGENIC ATOMIC FORCE MICROSCOPE FOR CHARACTERIZATION OF NANOSTRUCTURES
… design and applications of a cryogenic atomic force microscope (AFM) for characterization of nanostructures. The cryogenic AFM with a conductive tip can measure DC current through nanostructures. We use quartz tuning fork (QTF) as the force sensor. Unique coarse z motor design provides reliable …
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Magnetic properties of lithographically patterned thin film magnetic elements for magnetic random access memory applications
… With the aim of assessing the behavior of future magnetic random access memory (MRAM) devices, the magnetic properties of the patterned elements, including magnetization switching mechanisms, switching field distribution, magnetic thermal stability, and magnetostatic interactions, have been …
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Wide-field magnetic field imaging with nitrogen vacancy centers in nanodiamonds at high frame-rates
… polarization, readout and optically detected magnetic resonances (ODMR). The NV has been shown to be a sensitive magnetometer at room temperature. In particular, owing to their small size, NV centers in nanocrystals (nanodiamonds) offer magnetic field imaging with high spatial resolution. …
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Computer simulation studies of magnetic nanostructures
… has recently turned to smaller and smaller magnetic structures which can be used in hard disk drives, magnetoresistive random access memory (MRAM), and other novel devices. For nanomagnets the geometric shape of the object becomes more important than other factors such as magnetocrystalline …
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Magnetic reversal of artificial spin ice
… spin ice refers to an array of elongated ferromagnetic elements, providing a fascinating model system to study novel magnetic behavior induced by frustration. Initially used as a tool to understand the behavior of the frustrated spin systems called spin ice, artificial spin ice has become an …
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Micomagnetic calculations of the magnetic properties of thin metallic films
A micromagnetic model has been developed to simulate the magnetisation in a metallic thin film. This is achieved by energy minimisation techniques. The energy of each grain in the medium includes Zeeman, anisotropy, magnetostatic and exchange. The magnetostatic energy is incorporated by considering …
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Magnetism and interactions at the nanoscale: synthesis, characterization and applications
Magnetic nanomaterials play a pivotal role in both fundamental research and a wide range of technological applications. This dissertation delves into the world of nanomagnetism, exploring various aspects of magnetic iron cobalt (Fe65Co35) structures in the form of nanocubes and nanochains. The …
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A data storage system based on patterned magnetic media and magnetic force microscopy
… systems. Periodic arrays of nanostructured magnetic pillars have been proposed as a patterned medium for high density data storage. In patterned media, each single domain magnetic pillar is used to store one bit of data. This media can theoretically provide an extremely high recording …
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Magnetoelectric Properties of Epitaxial Spinel Oxide Thin Films
… thin films on perovskite SrTiO3 substrates. The magnetic and electrical properties of FVO films are presented as well as the characterization of magnetoelectric coupling of the material. Secondly, another unique spinel, Cobalt Chromite, CoCr2O4 (CCO), which has a canted conical magnetic ordering …
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Real-space magnetic imaging of the spinel MnV2O4
… understand the underlying physics, we performed magnetic force microscopy measurements on two MnV2O4 samples with differing degrees of mechanical strain. These local investigations revealed sub-um-scale patterns in the magnetic structure in both samples. In one case, the magnetization of these …
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Nano-engineering of Atomically Thin Novel 2D Materials and Their Heterostructures
… due to its marvelous optical, electrical and magnetic properties. In addition to Transition metal dichalcogenides (TMDs), several new ferroelectric, ferromagnetic (FM), antiferromagnetic (AFM and multiferroic layered compounds has been discovered recently, that have found potential …
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Nano-engineering of Atomically Thin Novel 2D Materials and Their Heterostructures
… due to its marvelous optical, electrical and magnetic properties. In addition to Transition metal dichalcogenides (TMDs), several new ferroelectric, ferromagnetic (FM), antiferromagnetic (AFM and multiferroic layered compounds has been discovered recently, that have found potential …
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Fabrication and characterization of a magnetic bacterial nanocellulose for neurovascular reconstruction of cerebral aneurysms
… to months. We hypothesized that a material with magnetic properties can provide the force required to speed up re-endothelization across the aneurysm defect, since it can facilitate high cell density coverage at the damaged site in virtue of its ability to capture and retain magnetically …
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Electrodeposited Functional Nanowires for Energy Applications
… this thesis, piezoelectric, ferroelectric, ferromagnetic and magnetoelectric (ME) NWs have been explored in the context of vibrational energy harvesting and magnetic energy harvesting and sensing; because of their increased piezoelectric coefficients and ME coupling compared to bulk. …