Titlebook: Electron-Phonon Interaction in Conventional and Unconventional Superconductors; Pegor Aynajian Book 2011 Springer-Verlag Berlin Heidelberg

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Phonons and Their Interactions,on of the potential leads to an interaction between phonons. As a result, a phonon from a given state defined by the wave vector . and the branch . of the dispersion spectrum ω.(.) will decay into other phonons after a finite time. Phonon–phonon interactions involve different number of phonons in the interaction process.

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Results and Discussion,the electron–phonon contribution to the phonon linewidths. The first part deals with conventional superconductors ranging from simple elements to more exotic two dimensional compounds. The second part is concerned with the high temperature superconductor La.Sr.CuO. over a wide doping range from underdoped to overdoped samples.

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Pegor AynajianDescribes a new method that helps gather highly accurate and revealing information about superconducting systems.Proposes, and gives evidence to support an unexpected relationship between the supercon

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https://doi.org/10.1007/978-3-642-14968-9Electron-Phonon Interaction; Kohn Anomaly; Neutron Resonance Spin Echo Spectroscopy; Neutron Scattering

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Book 2011 relationship between the superconducting energy gap and the geometry of the Fermi surface in the normal state, both of which leave subtle imprints in the lattice vibrations that could not be resolved by conventional spectroscopic methods. He has confirmed this relationship on two elemental supercon

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