Publisher Summary This chapter discusses percolation theory as well as spin-glass
phenomena, the former of which is used to understand subjects as diverse as fluid flow in …

We study the ground-state and low-energy properties of classical vector spin models with
nearest-neighbor antiferromagnetic interactions on a class of geometrically frustrated …

We have performed muon spin relaxation measurements of the frustrated kagomé lattice
spin system Sr Cr 8 Ga 4 O 19. Our results demonstrate the slowing down of the Cr spin …

Ferrites crystallize in a variety of different structure types, which, although their formulas may
at first appear to be too complex to understand intuitively, are in fact built from the stacking of …

We investigate the consequences for geometrically frustrated antiferromagnets of weak
disorder in the strength of exchange interactions. Taking as a model the classical …

We study the effect in geometrically frustrated antiferromagnets of weak, random variations
in the strength of exchange interactions. Without disorder the simplest classical models for …

We present the high-temperature expansion (HTE) up to tenth order of the specific heat C
and the uniform susceptibility χ for Heisenberg models with arbitrary exchange patterns and …

The spin-1 2 Heisenberg antiferromagnet on the kagome lattice, is mapped by contractor
renormalization to a spin-pseudospin Hamiltonian on the triangular superlattice …

We have studied the low-temperature ac magnetic susceptibility of the diluted spin ice
compound Dy 2− x M x Ti 2 O 7, where the magnetic Dy ions on the frustrated pyrochlore …

We show by inelastic neutron scattering that the frustrated magnet SrCr 9 p Ga 1 2− 9 p O 19
[p= 0.92 (5)] has dispersionless magnetic excitations at energies 18.6 (1) and 37.2 (5) meV …