Magnetic multipole analysis of kagome and artificial spin-ice dipolar arrays
By Gunnar Möller, Roderich Moessner. 2009
209 citations recorded by the source corpus.
We analyse an array of linearly extended monodomain dipoles forming square and kagome lattices. We find that its phase diagram contains two (distinct) finite-entropy kagome ice regimes - one disordered, one algebraic - as well as a low-temperature ordered phase. In the limit of the islands almost touching, we find a staircase of corresponding entropy plateaux, which is analytically captured by a theory based on magnetic charges. For the case of a modified square ice array, we show that the charges (`monopoles') are excitations experiencing two distinct Coulomb interactions: a magnetic `three-dimensional' one as well as a logarithmic `two dimensional' one of entropic origin.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/00fd2da4036fd211c081efaaf293bca8d40de7c7
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Condensed Matter Physics
Citations in the corpus
- Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice (2011, background): “The charge model (see Methods ) then predicts an NaCl-type charge-ordered ground state that is twofold degenerate with respect to the sublattice parity in the absence of an external magnetic fiel”
- Thermal ground-state ordering and elementary excitations in artificial magnetic square ice (2011, background): “, an emergent monopole excitation description has also been invoked, theoretically addressed in square ice system”