Premium
Induced uniaxial magnetic anisotropy in disordered FeAl alloys
Author(s) -
Steinert J.
Publication year - 1971
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.2220480116
Subject(s) - anisotropy , condensed matter physics , atom (system on chip) , magnetic anisotropy , anisotropy energy , position (finance) , exponential function , magnetization , materials science , physics , magnetic field , quantum mechanics , mathematics , finance , economics , mathematical analysis , computer science , embedded system
Abstract In Fe‐Al alloys the dependence of the induced uniaxial magnetic anisotropy on concentration, direction, temperature, and time was investigated. The results were compared with a theory given by Néel. The part G of the induced anisotropy is caused by A1–Al atom pairs in nearest neighbour position and F is caused by complexes which consist of more than two substitutional atoms. No any contribution of pairs of next nearest neighbours to F were found. In contrast to a theory by Taniguchi the interaction energy of atom pairs with the direction of magnetization shows a linear dependence on temperature. The formation of the induced anisotropy doesn't follow an exponential function on time and therefore it isn't possible to determine their magnitude and activation energy by usual methods.