The Huang-Rhys factors for the absorption and emission of light by F-centers are derived using a modified tight binding approximation. Preparatory to this calculation, explicit representations for the discreet local phonon eigenfrequency spectra are determined as functions of electron state. Reduced ...
本帖内容被屏蔽
Huang–Rhys factor for bulk statesIt was mentioned in the Introduction that lattice relaxation is not applicable to the transition between two bulk states. Mathematically, one can see that for a bulk state |nk > the matrix element Δk(q) = <nk|u(q)|nk>∝ δq,0; and for q = 0, ...
Huang-Rhys parameternon-Condon approximationWe develop in this paper the theory of multiphonon radiative transition so that someimportant physical quantities that describe effect s of lattice relaxation in electron transitions,for example, Huang--Rhys parameters, lattice relaxation energies and Stokes ...