Structure of Local Spin Excitations in a Geometrically Frustrated Antiferromagnet

摘要

For many crystalline magnetic materials, only a long range ordered spin configuration can satisfy all near neighbor spin interactions. Such systems generally display a finite temperature transition to a broken symmetry phase with long-range magnetic order. However, on certain lattices with weak connectivity and a triangular motif, short-range interactions can be satisfied without long-range order [1].