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PhD thesis | Doping (Semiconductor) | Ferromagnetism

In the case of C-doped ZnO thin films, we observed room temperature ferromagnetism with n-type conductivity.

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Case Studies In Ethics In Teaching - Thesis On Ferromagnetism

This dissertation work is devoted to the investigation of a new class of multiferroic polymer-based flexible nanocomposites, which exhibits excellent ferromagnetism and ferroelectricity simultaneously at room temperature, with the goal of understanding and optimizing the origin of their magnetoelectric coupling.

PhD Thesis R Ribichini Final | Ferromagnetism | Electron

We also demonstrated the role of Li as a ferromagnetic defect in SnO2 nanoparticles, which was seen to be less effective as compared to Zn.AB - In this thesis we determined that suitable defects (e.g.

One of the features that display ferromagnetism is the ..

The second part of the PhD project was focused on studying ferromagnetism in SnO2, doped with non-magnetic dopants, i.e.

We hope our work provides moreunderstanding about one-dimensional magnetic systems, and that it willhelp to guide the synthesis of organic ferromagnetic materials.

Our results are in agreement with VanVleck's suggestion that the intra-atomic exchange interaction betweenelectrons in degenerate orbitals, Hund's rule coupling, is an importantmechanism for ferromagnetism.

Hall Effect - Thesis | Ferromagnetism | Microscopy

We also studied the effects on ferromagnetism of C-doped ZnO powders sintered in either reducing or nitrogen atmosphere.

It isexplicitly shown that a maximum multiplicity "ferromagnetic" groundstate can occur when the Coulomb repulsion and exchange interaction arelarge compared with the bandwidth.

Wefind that the one-dimensional degenerate Hubbard model in the strongcoupling regime can exhibit ferromagnetic spin correlation and atendency for alternate orbitals to be occupied as first pointed out byRoth.

We also demonstrated the role of Li as a ferromagnetic defect in SnO2 nanoparticles, which was seen to be less effective as compared to Zn.
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Masters Thesis Defense Presentation - SlideShare

By reviewing the KKR Green function theory in its full-potential representation Ferromagnetic ordering in dilute magnetic semiconductors and accordingly the 3.

Masters Thesis Defense Presentation 52,722 views

Hence, the ferromagnetic layers can align antiparallel while a complete 24 Apr 2012 Diluted magnetic semiconductors (DMS) are important functional materials that bring together two The scope of the present thesis is to study the properties of ZnO doped ..

Electrons spin are aligned parallel to each other.

In this thesis, we present the results of an investigation into the appearance of superconductivity in the excitonic ferromagnet. We find that such a coexistence is possible at zero temperature within the self-consistent hartree-Fock approximation.

Defect ferromagnetism in ZnO and SnO2 induced by …

The morphology of the nanostructures varies with zinc concentration and the stronger ferromagnetic response comes from nanostructures with nanoneedles on their surfaces.

Coexistence of Superconductivity and Ferromagnetism …

Lecture, 3 hours. Students are introduced to the fundamentals of ferromagnetism necessary to develop next-generation nanomagnetic and spintronics related devices. By the end of the course, they will acquire adequate knowledge to work as a research/development engineer in applied fields such as electromagnetic motor industry, magnetic recording, nuclear magnetic resonance (NMR) - based technologies, and any other industry where the knowledge of magnetism is essential. The course will begin with an introduction of the basics of magnetism and proceed with detailed analyses of some of the basic and advanced applications.

Electropermanent Magnets: Programmable Magnets with …

Intrinsic magnetic semiconductors of the europium chalcogenide family (EuO, EuS, EuSe, EuTe) are of particular interest due to the wide range of magnetic properties exhibited in the family itself (from ferromagnetism to metamagnetism).

Program Description and Degree Requirements

The nanocomposites consist of high aspect ratio ferromagnetic nanowires (NWs) embedded inside a ferroelectric co-polymer, poly(vinylindene fluoride-trifluoroethylene), P(VDF-TrFE) matrix.

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