Bogdanov AN, Rössler UK. Chiral symmetry breaking in magnetic thin films and multilayers.
PHYSICAL REVIEW LETTERS 2001;
87:037203. [PMID:
11461587 DOI:
10.1103/physrevlett.87.037203]
[Citation(s) in RCA: 100] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2000] [Indexed: 05/23/2023]
Abstract
A phenomenological theory of chiral symmetry breaking in magnetic nanostructures is developed considering induced, inhomogeneous chiral interactions (Dzyaloshinsky-Moriya-type). Application of the theory to films and multilayers with in-plane and out-of-plane magnetization predicts modulated and two-dimensional localized patterns (vortices). These new classes of magnetic patterns are intrinsically stable and localized on nanometer scale. Various experimental observations agree qualitatively with structures derived from this theory.
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