Polaron effects on the impurity binding energy in quantum wires

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We report a calculation of the electron-phonon interaction effects on donor impurity binding energy in a semiconductor quantum wire of rectangular cross section and finite barrier potential. The results for the binding energy are obtained as a function of the size of the wire for different positions of the impurity and for several values of the potential confining barrier height. It is found that the presence of phonons changes significantly the values of the impurity binding energies of the system.




OSÓRIO, Francisco A. P.; DEGANI, Marcos H.; HIPÓLITO, Oscar. Polaron effects on the ground impurity binding energy in quantum well wires. Physical Review B: condensed matter and materials physics, College Park, v. 52, n. 7, p. 4662-4665, 1995. DOI: 10.1103/physrevb.52.4662. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.52.4662. Acesso em: 14 set. 2023.