Spin glass induced by infinitesimal disorder in geometrically frustrated kagome lattice

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.

arXiv comment9 pages, 5 figures

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Cited by in corpus (6)

• Spin liquid and infinitesimal-disorder-driven cluster spin glass in the kagome lattice
• Quantum correlated cluster mean-field theory applied to the transverse Ising model
• 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