Stability of spin supersolidity at larger spin

Determine whether spin supersolid phases remain stable in triangular-lattice antiferromagnets with effective spin larger than one-half, including systems approaching the classical large-spin limit.

Background

The paper establishes dipolar and quadrupolar spin supersolid phases in a spin-1 triangular-lattice antiferromagnetic Heisenberg model. It notes that quantum fluctuations generally become weaker as the spin increases toward the classical limit, leaving unresolved whether the supersolid phases found for spin one-half and spin one can persist in systems with still larger effective spins, such as candidate manganese compounds with effective spin $S=5/2$.