%0 Journal Article %A Díez Alcántara, Eduardo %A Domínguez-Adame Acosta, Francisco %A Sánchez, Angel %T Thomas-fermi approach to resonant-tunneling in delta-doped diodes %D 1995 %@ 0021-8979 %U https://hdl.handle.net/20.500.14352/59376 %X We study resonant tunneling in B-S-doped diodes grown by Si-molecular beam epitaxy. A Thomas-Fermi approach is used to obtain the conduction-band modulation. Using a scalar Hamiltonian within the effective-mass approximation. we demonstrate that the occurrence of negative differential resistance (NDR) only involves conduction-band states, whereas interband tunneling effects seem to be negligible. Our theoretical results are in very good agreement with recent experimental observations of NDR in this type of diode. 0 1995 American Institute of Physics. %~