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The electronic excitation strongly interacting with the lattice in solids leads to efficient formation of lattice defects of Frenkel pairs. In alkali halide crystals, electron-hole pairs are localized at a lattice site to form a self-trapped exciton(STE) and the adiabatic instability of the STE induces further displacement of the lattice to the defect pairs[1].
© 1992 The Author(s)
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