5 papers
Magnetic self-frustration from spontaneous structural distortion
T. Vignau Costa, G. L. Rossini, D. C. Cabra +2
In frustrated magnetism, lattice distortions mediated by magnetoelastic coupling are commonly invoked as an escape route from extensive degeneracy toward an ordered ground state an…
Topological transitions in spin-ice induced by geometrical constraints
R. A. Borzi, E. S. Loscar, S. A. Grigera
We study the nearest-neighbor spin-ice model subjected to a magnetic field applied along the global [111] and [110] directions, focusing on the role of sample geometry in stabilizi…
Perfectly hidden order and Z2 confinement transition in a fully packed monopole liquid
Attila Szabo, Santiago A. Grigera, P. C. W. Holdsworth +5
We investigate a variant of spin ice whose degenerate ground states are densely packed monopole configurations. An applied field drives this model through a Z2 confinement transiti…
Investigation into the low temperature state of the spin-ice material Dy_2 Ti_2 O_7
Mariano Marziali Bermudez, R. A. Borzi, D. A. Tennant +1
The thermal equilibrium properties of the spin-ice material DTO, including specific heat, magnetization, and spin correlations, could be successfully reproduced by a model featurin…
Dipolar effects on the behavior of magnetically diluted spin-ice
M. Gorsd, S. A. Grigera, R. A. Borzi
In this work, we explore the magnetic behavior of diluted spin-ice systems, where magnetic moments are randomly removed at various concentrations. We concentrate on features in whi…