3 papers
cond-mat.str-el2025
Anharmonic Collective Oscillations in Isotropic Spin Systems and their Spectroscopic Signatures
Anna Fancelli, MatÃas G. Gonzalez, Subhankar Khatua +4
Spin waves are the fundamental excitations in magnetically ordered spin systems and are ubiquitously observed in magnetic materials. However, the standard understanding of spin wav…
cond-mat.str-el2024
Fragile spin liquid in three dimensions
Anna Fancelli, R. Flores-Calderón, Owen Benton +3
Motivated by the recent appearance of the trillium lattice in the search for materials hosting spin liquids, we study the ground state of the classical Heisenberg model on its line…
cond-mat.str-el2024
Magnetic properties of the spiral spin liquid and surrounding phases in the square lattice XY model
MatÃas G. Gonzalez, Anna Fancelli, Han Yan +1
Spiral spin liquids possess a subextensively degenerate ground-state manifold, represented by a continuum of energy minima in reciprocal space. Since a small change of the spiral s…