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 8 of 8 for “"Zeeman energy"”.
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Nuclear magnetic resonance study of quantum size effects in supported platinum particles
… scaling the bulk density of states at the Fermi energy with the volume of the particles. An interpretation is proposed based on the relative sizes of the electron Zeeman energy and the level spacing of particular particles.
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Magnetic structures and proximity effects in rare-earth / transition metal ferromagnetic and superconductor systems
… the exchange energies within the system and the Zeeman energy of the applied magnetic field. The experiment and model together provide a complete overview of the Ni/Gd/Ni system due to the breadth of temperatures and thicknesses studied. The knowledge gained from this work is then applied to …
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Magnetic-field-induced antiferromagnetism in the Kondo lattice
… half-filled Kondo lattice model, augmented by a Zeeman term, serves as a useful model of a Kondo insulator in an applied magnetic field. A variational mean field analysis of this system on a square lattice, backed up by quantum Monte Carlo calculations, reveals an interesting separation of …
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Spectroscopy of Two Dimensional Electron Systems Comprising Exotic Quasiparticles
… Landau levels. I report for the first time, high energy excitations of composite fermions in the quantum fluid at v = 1/3. The high energies discovered represent excitations across multiple composite fermion energy levels, demonstrating the topological robustness of the fractional quantum Hall …
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Electron tunneling and spin relaxation in a lateral quantum dot
… the states in the dot with respect to the Fermi energy of the leads. We also develop a triggering system to identify electron tunneling events in real-time data. Using real-time charge sensing, we measure the rate at which an electron tunnels onto or off of the dot. In zero magnetic field, we …
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BEC-BCS crossover with Feshbach resonance for three-hyperfine-species model
… at this point. There is one characteristic energy scale, $\delta_c$, defined as, in the negative side of the resonance point, the detuning energy at which the weight of the bound state shifts from predominatedly in the open-channel to predominated in the closed-channel. When the many-body …
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Interaction and Mixing Effects in Two and One Dimensional Hole Systems
… to that between electrons. However, the kinetic energy is suppressed, which makes interaction effects particularly important. Holes may also be used to study band structure effects which arise from spin-orbit coupling in the valence band. The effects of Coulomb interactions in low dimensional …
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Topological insulators and semimetals in the presence of interactions
… in the subsequent chapters. We introduce the low energy Hamiltonian and the unique physical responses of the topological insulators and the topological semimetals. In addition, we construct the tight-binding models that are used in the next chapters. In chapter. 2, we study the superconducting …