Accession Number : AD0281716

Title :   INFLUENCE OF THE CRYSTAL FIELD ON THE ION-CORE STATES OF LITHIUM, SODIUM, AND POTASSIUM,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH

Personal Author(s) : Erdmann,Joachim C.

Report Date : MAY 1962

Pagination or Media Count : 26

Abstract : The tight-binding method for the calculation of one-electron states in solids is applied to the s-states of the outermost ion-core electrons of lithium, sodium, and potassium. Wave functions and electronic cyrstal potential are obtained from orthogonalized Slater orbitals. The 1s ion-core energy of solid lithium with equilibrium lattice parameter is found to be different from the value in the free atom by 0.100 Ry. The corresponding difference for the 2s state of sodium and the 3s state of potassium are 0.026 Ry and 0.0001 Ry, respectively. Reduction of the lattice constant leads to a significant shift of the 1s ion-core level in lithium, not, however, of the 2s state in sodium and the 3s state in potassium. These results appear to be consistent with some known observations of the soft x-ray emission of these metals. (Author)

Descriptors :   *BRILLOUIN ZONES, *CRYSTAL STRUCTURE, *IONS, LITHIUM, POTASSIUM, SODIUM

Distribution Statement : APPROVED FOR PUBLIC RELEASE