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Momentum distribution of electrons in metallic lithium
Author(s) -
Mosharafa A. A.,
Radwan A. M.
Publication year - 1988
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170230811
Subject(s) - brillouin zone , electron , position and momentum space , momentum (technical analysis) , condensed matter physics , core electron , lithium (medication) , anisotropy , physics , symmetry (geometry) , thermal conduction , crystal (programming language) , atomic physics , chemistry , quantum mechanics , geometry , mathematics , medicine , finance , endocrinology , computer science , economics , programming language
The momentum distribution of electrons in metallic lithium is calculated along the main axes of symmetry in momentum space. The crystal has a bcc structure of side 6.6317 a.u., both the crystal potential and orthogonalization to core states are adequately considered. The results show a marked anisotropy in the momentum distribution, this is mainly due to the strong effective potential seen by the conduction electrons. This causes states in the lowest band, particularly near the Brillouin zone boundary, to be strongly coupled.