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Positron annihilation studies of the electronic structure of B.C.C. Fe
Author(s) -
Szuszkiewicz S.,
Rozenfeld B.,
Szuszkiewicz M.
Publication year - 1979
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220940131
Subject(s) - annihilation , positron annihilation , fermi gamma ray space telescope , monocrystalline silicon , fermi surface , electronic structure , atomic physics , physics , electronic band structure , momentum (technical analysis) , basis (linear algebra) , angular momentum , condensed matter physics , nuclear physics , positron , geometry , quantum mechanics , silicon , electron , superconductivity , mathematics , optoelectronics , finance , economics
Angular distributions of annihilation quanta are measured for monocrystalline b.c.c. Fe samples oriented along the following five crystallographic directions: [100], [110], [111] [210], and [211]. Based on experimental data, the distributions of momentum density of annihilation quanta are calculated for the principal directions. The results obtained are analyzed on the basis of electronic band structure and following from this the shape of the Fermi surface.