Details

Autor(en) / Beteiligte

• Schildknecht, Dominik
• Schütt, Michael
• Heyderman, Laura J.
• Derlet, Peter M.

Titel

Continuous ground-state degeneracy of classical dipoles on regular lattices

Ist Teil von

• Physical review. B, 2019-07, Vol.100 (1), p.014426, Article 014426

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Link zum Volltext

Quelle

APS: American Physical Society E-Journals (Physics)

Beschreibungen/Notizen

• Dipolar interactions are crucial in the modeling of many complex magnetic systems, such as the pyrochlores and artificial spin systems. Remarkably, many classical dipolar-coupled spin systems exhibit a continuous ground-state degeneracy, which is unexpected as the Hamiltonian does not possess a continuous symmetry. In this paper, we explain how such a finite point symmetry leads to a continuous ground-state degeneracy of specific classical dipolar-coupled systems. This work therefore provides new insight into the theory of classical dipolar-coupled spin systems and opens the way to understand more complex dipolar-coupled systems.