SKM 2021 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

MA: Fachverband Magnetismus

MA 11: Posters Magnetism III

MA 11.33: Poster

Mittwoch, 29. September 2021, 13:30–16:30, P

Magnetic Transitions in Synthetic Antlerite, Cu₃SO₄(OH)₄ — •Darren C. Peets¹, Anton A. Kulbakov¹, Quirin Stahl¹, Pavlo Portnichenko¹, Maxim Avdeev², Sebastian Gaß³, Laura Teresa Corredor Bohorquez³, Anja U. B. Wolter^3,4, Manuel Feig⁵, Hagen Poddig⁶, Inés Puente-Orench^7,8, Jochen Geck^1,4, and Dmytro S. Inosov^1,4 — ¹IFMP, TU Dresden, 01069 Dresden, Germany — ²ANSTO, Lucas Heights, NSW 2234, Australia — ³IFW-Dresden, 01069 Dresden, Germany — ⁴ct.qmat, TU Dresden, 01069 Dresden, Germany — ⁵IEP, TU Bergakademie Freiberg, 09596 Freiberg, Germany — ⁶Anorganische Chemie II, TU Dresden, 01069 Dresden, Germany — ⁷INMA, CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain — ⁸ILL, 38042 Grenoble, France

In frustrated magnetic systems, geometric constraints or the competition amongst interactions introduce extremely high degeneracy and prevent the system from readily selecting a low-temperature ground state. In the mineral antlerite, Cu₃SO₄(OH)₄, Cu²⁺ (S=1/2) quantum spins populate triangular-lattice three-leg ladders in a novel highly-frustrated quasi-one-dimensional structural motif. We demonstrate that this mineral hosts four distinct magnetically-ordered phases in zero field alone, including an incommensurate phase and a multiple-q phase. Multiple-q phases are extremely uncommon in centrosymmetric compounds of 3d and lighter elements, and the discovery of such a phase in antlerite opens a new route to finding new materials platforms for exotic magnetic order.