Heat Capacity Evidence for the Suppression of Skyrmions at Large Zeeman Energy
Abstract
Measurements on a multilayer two-dimensional electron system (2DES) near Landau level filling =1 reveal the disappearance of the nuclear spin contribution to the heat capacity as the ratio g between the Zeeman and Coulomb energies exceeds a critical value gc ≈0.04. This disappearance suggests the vanishing of the Skyrmion-mediated coupling between the lattice and the nuclear spins as the spin excitations of the 2DES make a transition from Skyrmions to single spin-flips above gc. Our experimental gc is smaller than the calculated gc=0.054 for an ideal 2DES; we discuss possible origins of this discrepancy.
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.