Titlebook: Solid State Theory, Volume 1; Basics: Phonons and Gerd Czycholl Textbook 20231st edition The Editor(s) (if applicable) and The Author(s),

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Connotation

Non-interacting Electrons in the Solid State,ns and electron-electron interaction are neglected. Then it is sufficient to solve the one-particler Schrödinger equation for a single electron in a periodic potential. Because the Hamiltonian commutes with the translation operators in the presence of translational invariance, common eigenstates of

Itinerant

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Electron-phonon Interaction,.e. the dynamics of the electrons, and the lattice degrees of freedom, i.e. the dynamics of the ions, can be considered as decoupled to a good approximation. Accordingly, in Chap. 4 we only considered the lattice vibrations (phonons) and in Chap. 5 and 6 only the electrons. But we already know from

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Gerd Czycholl“beschrieben worden sind. Prohibitionsnormen oder -regeln sind „those which prohibit, both in international law and in the domestic criminal laws of states, the involvement of state and nonstate actors in particular activities“(Nadelmann 1990: 479). Um die Entstehung von Prohibitionsregimen zu erklä

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Gerd Czycholl Die rhetorische Wendung von der „Rolle der EU“ taucht im Diskurs der Institutionen der Europäischen Union (EU). regelmäßig auf, um sowohl die Eigenständigkeit der EU als internationaler Akteur, ihre Einflussmöglichkeiten, aber auch ihre spezifischen Aufgaben und Orientierungen in der internationale

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