elektronkad
Elektronkad is a hypothetical composite quasi-particle used in condensed matter theory to describe an electron coupled to a localized lattice excitation in a crystalline solid. In this view, the electron induces a lattice distortion that moves with it, forming a bound state whose properties differ from a bare electron or from a simple polaron. The term appears mainly in exploratory discussions of charge transport in strongly interacting systems and is not universally adopted as a standard concept.
The concept arises in models with strong electron–phonon coupling and sometimes reduced dimensionality. Theoretical treatments extend
Observables and evidence: predictions include spectral weight redistribution and phonon-related sidebands in spectroscopy, as well as
Implications and applications: if realized, elektronkads could help explain unconventional transport phenomena and inform the design
See also: polaron, electron–phonon interaction, exciton, lattice defect. Further reading includes reviews on strong coupling in