Evolution of magnetization configuration phase diagram with increasing exchange coupling in synthetic antiferromagnets

Fujiwara, Hideo
October 2008
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p172502
Academic Journal
Comprehensive analysis of the magnetization response to an in-plane field for a balanced synthetic antiferromagnet has been performed. Evolution of the critical field pseudoastroids and the magnetization configuration phase diagram with increasing exchange coupling are presented. It is found that the nonparallel magnetization configurations are classified into two, one existing for all exchange coupling strengths and the other starting to appear at a critical value. The analytic formulas for the off-anisotropy-axis cusp of the pseudoastroid are also presented.


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