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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 20 of 23 for “"Magneto-transport"”.
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Magneto-transport properties of giant magnetoresistive systems
To understand the cause of the giant magnetoresistance effect, we have systematically investigated magnetothermopower, magneto-thermal conductivity and magnetoresistivity in both ferromagnetic/non-magnetic multilayers and granular solids which exhibit the giant magnetoresistance effect.
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Magneto-transport properties of manganite/secondary phase inhomogeneous systems
… to the spin tunneling effect and the low field magnetoresistance (MR) effect, whose peak value for LBMO is enhanced from 3% to -3.3 %, -3.5 % and -3.7% with TiO2 addition for x= 0.02, 0.04 and 0.06 ratio. An improvement in magnetocaloric (MC) properties in comparison with LBMO at the same …
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Low-temperature magneto-transport study of topological insulator-magnetic material heterostructures
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Magneto-Optics and Magneto-Transport Studies on Thin Films for Sensor Applications
Recent progress and interest have bought considerable effort to bear on the synthesis and opportunities of magnetic thin films in different fields. There are applications in many fields, including remote sensing, waveguide applications, hard drive applications, etc. at the College of William and …
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Minority Electron Base Transport in Heterojunction Bipolar Transistors Determined by Magneto-Transport Measurements
The magneto-transport method is a technique that allows the simultaneous measurement of the minority electron mobility in the base of the HBT and the dc current gain of the device. The minority electron lifetime can be determined using these two measurements. Therefore, this technique is very …
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Topological Transport in Sb Quantum Wells
… (EBL) and reactive ion etching (RIE). Magneto-transport and quantum interference experiments were then conducted. To better understand the effects seen in magneto-transport measurements, classical magneto-transport and quantum interference theory is covered. The classical …
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On-Chip Multiplexers for Transferable Nanomaterials: Design, Fabrication and Applications
… thesis. This device is characterised by multiple magneto-transport experiments, which demonstrate that the multiplexing technique can be used to collect reproducible data that is consistent with existing results, at a rate higher than what would otherwise be possible. In the absence of a magnetic …
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Rashba-Effekt in niedrigdimensionalen InGaAs/InP Strukturen
… selective wet chemical etching process. Magneto-transport measurements have revealed two important properties of the spin-orbit coupling in such wires. For wider wires the strength of the interaction (coupling constant) could be extracted from transport experiments. It increases as the …
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Wachstum und Charakterisierung von Halbleiternanostrukturen auf vorstrukturiertem Substrat
… modulation doped systems can be revealed. While magneto-transport does not show clear evidence of one-dimensional electron transport, special experiments indicate a restriction of current to the quantum wire as long the Fermi edge stays undisturbed.
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Study of vdW Magnetic Materials for Spintronic Applications
… of devices using lithography, and magneto-transport measurements. This work will serve as a strong foundation for future work which would involve developing spin-valve devices with vdW materials and exploring energy-efficient modes of switching magnetism in them.
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Spin-Orbit Coupling in SrTiO3/Si Thin Films at High Carrier Concentration
… used to conduct the experiment. I am doing the magneto transport measurement at different temperature and the magnetic fields with different magnetic field orientations. It is very necessary to calibrate the Horizontal rotator positions, which is explain in chapter four. Chapter five talks about …
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Electronic properties of topological semimetal candidates ACd$_2$Pn$_2$ (A = Eu, Sr; Pn = As, Sb)
… magnetic Weyl semimetal. The earlier studies of magneto-transport and photoemission seem to agree with the existence of the Weyl semimetal phase, however, the direct observation of Weyl crossings of EuCd$_2$As$_2$ is lacking. In this study, through materials synthesis, materials characterization, …
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Single-layer transport measurements of bilayer 2D electron and hole systems in GaAs heterostructures
… studies, which involve low temperature magneto-transport measurements of one 2D system independent of the other, and one theoretical study. Firstly, we present a new technique for measuring the chemical potential of a 2D system. In a bilayer 2D electron system (2DES), we use the lower …
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Charge Transport Physics in Coordination Nanosheets (CONASHs)
… This study delves into the unique charge transport characteristics of CONASHs. The investigation focuses on two exemplary coordination nanosheets, copper-benzenehexathiol (Cu-BHT) and nickel-based benzenehexathiol (Ni-BHT), presenting a detailed exploration of their charge transport …
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Low temperature Kerr effect study of magnetic topological insulators and other magnetic structures
… systems is presented, with an emphasis on the magneto-optic Kerr effect (MOKE) characterisation. The design and construction of a MOKE microscope is described, for simultaneous magneto-optical and magneto-transport measurements in an applied field of up to 9 T at temperatures from 1.5 to 300 K. …
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Electronic Transport in Highly Mismatched InAs Films on GaAs
… layers grown by MOCVD were studied by performing magneto-transport measurements at different temperatures, from 300 K down to 1.2 K. The longitudinal magnetoresistance and Hall effect indicate a three-band system existing in n-type (p-type) InAs, which consists of the surface accumulation …
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Nanoscale Semiconductor Materials and Devices Employing Hybrid 1D and 2D Structures for Tunable Electronic and Photonic Applications
… nanowires have recently shown very promising magneto-transport properties at low temperatures and with magnetic field due to its high spin orbit coupling. This thesis demonstrates initial low temperature device studies on hybrid devices with InSb channel and superconducting electrodes …
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High temperature quantum transport in graphene/hexagonal-boron nitride heterostructures
… This has enabled the study of a plethora of transport phenomena, as well as the realisation of novel device architectures that will be used in the next generation electronics. In general, experimental signatures of electron transport are most prominent at liquid helium temperatures when …
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Elektrischer Transport in GaN- und InN-Nanodrähten
… thesis discusses the analysis of the electrical transport in GaN and InN nanowires at room temperature and deep temperatures. From those measurements two different transport models for those two in matter of the band banding completely different materials have been found. To perform those …
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