Competing interaction in magnets: the root of ordered disorder or only frustration?

Abstract

What does the equilibrium atomic, molecular or spin configuration of a glass phase look like? Is there only one unique equilibrium configuration or are there infinitely many configurations of equal energy? The processes and mechanisms governing the path towards equilibrium, i.e. the dynamics of glassy systems, provide insights to these questions. Here we discuss the intrinsic dynamics of different glassy magnets: of spin-glasses, frustrated ferromagnets, superspin-glasses and other nanostructured systems with competing ferro- and antiferromagnetic interactions and randomness in their spatial distribution. This paper is intended as a brief update on some unsolved problems and the current empirical status in the field of disordered and frustrated magnetism.

12 pages

References in corpus (4)

• Near room-temperature colossal magnetodielectricity and multiglass properties in partially-disordered La2NiMnO6
• Spin glass behavior in an interacting gamma-Fe2O3 nanoparticle system
• Nonequilibrium spin glass dynamics from picoseconds to 0.1 seconds
• Spin glasses in a field: Three and four dimensions as seen from one space dimension

Cited by in corpus (5)

• Simultaneous individual and dipolar collective properties in binary assemblies of magnetic nanoparticles
• Signatures of a spin-1/2 cooperative paramagnet in the diluted triangular lattice of Y${}_2$CuTiO${}_6$
• Spin liquid and infinitesimal-disorder-driven cluster spin glass in the kagome lattice
• Coexistence of Multiple Magnetic Interactions in Oxygen Deficient V2O5 Nanoparticles
• Role of Frustration in a Weakly Disordered Checkerboard Lattice