Phys. Rev. Lett. 76, 2583–2586 (1996)Spin Structure in Magnetic Multilayers with Rough InterfacesReceived 7 August 1995; published in the issue dated 1 April 1996 We show that spatial fluctuations of the interplane exchange coupling may produce a random large scale spin structure coexisting with orthogonally ordered magnetizations of ferromagnetic films. Despite the existence of long range order, spatial magnetic fluctuations are large because of nonperturbative effects. An estimate of the biquadratic coupling between magnetic films, associated with the structure, is presented. The results obtained are applicable for any randomly coupled systems with continuous symmetry. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.2583
DOI:
10.1103/PhysRevLett.76.2583
PACS:
75.70.Cn
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