Spin glass induced by infinitesimal disorder in geometrically frustrated kagome lattice
arXiv:1507.02613 · doi:10.1016/j.physa.2015.07.010
Abstract
We propose a method to study the magnetic properties of a disordered Ising kagome lattice. The model considers small spin clusters with infinite-range disordered couplings and short-range ferromagnetic (FE) or antiferromagnetic interactions. The correlated cluster mean-field theory is used to obtain an effective single-cluster problem. A finite disorder intensity in FE kagome lattice introduces a cluster spin-glass (CSG) phase. Nevertheless, an infinitesimal disorder stabilizes the CSG behavior in the geometrically frustrated kagome system. Entropy, magnetic susceptibility and spin-spin correlation are used to describe the interplay between disorder and geometric frustration (GF). We find that GF plays an important role in the low-disorder CSG phase. However, the increase of disorder can rule out the effect of GF.
9 pages, 5 figures
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Cited by in corpus (5)
- Spin liquid and infinitesimal-disorder-driven cluster spin glass in the kagome lattice
- Enhancement of the Magnetocaloric Effect in Geometrically Frustrated Cluster Spin Glass Systems
- Geometrical Frustration and Cluster Spin Glass with Random Graphs
- Role of Frustration in a Weakly Disordered Checkerboard Lattice
- Absence of long-range order in a three-dimensional stacked Ising antiferromagnet on kagome lattice