出典:Wiktionary
出典:『Wiktionary』 (2025/10/28 13:32 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/30 19:44 UTC 版)
A polaron is a quasiparticle composed of a charge and its accompanying polarization field. A slow moving electron in a dielectric crystal, interacting with lattice ions through long-range forces will permanently be surrounded by a region of lattice polarization and deformation caused by the moving electron. Moving through the crystal, the electron carries the lattice distortion with it, thus one speaks of a cloud of phonons accompanying the electron.