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Temperature Dependence and Critical Behaviour of the Resistivity Anisotropy in Ferromagnetic Metals
Author(s) -
Ky Vudinh
Publication year - 1980
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.2221000111
Subject(s) - condensed matter physics , anisotropy , ferromagnetism , electrical resistivity and conductivity , critical exponent , exponent , spin (aerodynamics) , materials science , magnetic field , physics , thermodynamics , quantum mechanics , phase transition , linguistics , philosophy
The resistivity anisotropy in ferromagnetic metals due to spin—orbit interaction is considered with spin correlation taken into account. The obtained temperature dependence of Δρ shows a round peak in accord with experiment. In the critical region d(Δρ)/d t diverges as (— t ) 1—(α + φ) ( t = ( T — T C )/ T C , magnetic field h = 0), where φ is the cross‐over exponent.