Effect of exchange-bias coupling between ferromagnetic (FM) layer and antif
erromagnetic (AFM) underlayer on the H-field and thermal reversal propertie
s was studied analytically by minimizing the free energy E(alpha, beta) of
the bilayer system. Correlation between the effective-thermal-stability-fac
tor (KuV*/k(B)T)(eff), coercivity H-C and parameters of the bilayer system
is presented. Emphasis is on analyzing the energy-barrier E-B influence upo
n the moment reversal properties.