Calculation of magnetoresistance coefficient for multilayer magnetic structure Fe/Cr
The Monte Carlo simulation is carried out for description of structure from two ferromagnetic films Fe(100) separated by nonmagnetic film Cr. Ab initio calculations of the exchange interaction integral is carried out with the use of the PAW PBE approximation. The calculation of coefficient of magnetoresistance is carried out as a function of ferromagnetic films thickness with the temperature scale in terms of the exchange interaction integral obtained in the first-principles calculations, J1 = 1.7 10-14 erg. The interaction of the next-nearest atoms with the constant of exchange interaction J2 = 0.4 10-14 erg is.considered. It was shown that calculated temperature dependence of coefficient of magnetoresistance is in a good agreement with experimental results obtained for similar multilayer magnetic structures.