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 3 of 3 for “"Spinwellen"”.
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Ab initio calculations of spin wave excitation spectra from time-dependent density functional theory
The topic of this work is the quantum-mechanical description of elementary magnetic excitations, so-called spin waves. The theoretical foundation of spin-wave excitations is systematically worked out, the central points of a computer implementation is presented, and results are finally shown. A …
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Magnetische Anregungen und Achsenkonversion in NdCu2
… zu charakterisieren. Dazu wurden die Spinwellendispersionsrelationen in mehreren magnetischen Phasen gemessen (ferro-, ferri-, antiferromagnetisch; magnetische Momente parallel b). Die Lage der in der ferromagnetischen Phase F3 erwarteten zwei Dispersionszweige konnte vollständig …
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A photoemission study of quasiparticle excitations, electron-correlation effects and magnetization dynamics in thin magnetic systems
This thesis is focused on the electronic, spin-dependent and dynamical properties of thin magnetic systems. Photoemission-related techniques are combined with synchrotron radiation to study the spin-dependent properties of these systems in the energy and time domains. In the first part of this …