Magnetic susceptibility: An easy approach to the spin-reorientation transition

Pütter, S., Ding, H. F., Millev, Y. T., Oepen, H. P., Kirschner, J.

Physical Review B 64, (3), pp 092409/1-4 (2001)

The reorientation of magnetization is studied during film growth by means of ac susceptibility. The susceptibility is obtained via the magneto-optic Kerr effect. For Co/Au(111) a maximum of the susceptibility is found at 4.38±0.07 atomic layers of Co. The susceptibility peak is demonstrated to represent the spin-reorientation transition. The influence of external fields on the transition is explored. In agreement with theory shifts of the susceptibility peak are observed in bias fields.

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(Reference: TH-2001-37)