DPG Phi
Verhandlungen
Verhandlungen
DPG

SKM 2023 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

MA: Fachverband Magnetismus

MA 40: Poster Magnetism II

MA 40.25: Poster

Thursday, March 30, 2023, 14:00–16:00, P2/EG

Frustrated Low-dimensional Copper Compounds Bluebellite and Rouaite. — •Aswathi Mannathanath Chakkingal1, Falk Pabst2, Vladimir Pomjakushin3, Maxim Avdeev4, Roman Gumeniuk5, Darren Peets1, and Dmytro Inosov11IFMP, TU Dresden, Germany — 2Professur f. Anorganische Chemie II, TU Dresden, Germany — 3PSI, Switzerland — 4ANSTO, Australia — 5Institut für Experimentelle Physik, TU Bergakademie Freiberg, Germany

The hydrothermal technique is an efficient strategy to synthesize mineralogically inspired structures, including natural and synthetic cuprate minerals with a variety of exciting frustrated magnetic lattices. We report the hydrothermal synthesis of bluebellite (Cu6[(IO3)(OH)3](OH)7Cl) and rouaite (Cu2(NO3)(OH)3). Neutron diffraction studies were performed to determine both compound’s crystal structure and magnetic structure. Cu2(NO3)(OH)3 crystallizes in a monoclinic structure consisting of a ferromagnetic chain and an antiferromagnetic chain of Cu2+. This is similar to the botallackite (Cu(OH)3Br) in which spinon-magnon mixing was recently reported. Cu6[(IO3)(OH)3](OH)7Cl crystallizes in a trigonal structure, and the magnetic Cu2+ forms a distorted maple-leaf lattice. Frustration effects and quantum fluctuations in spin-1/2 maple-leaf lattice antiferromagnets may give rise to interesting phenomena. We report details of the crystal structure, magnetic structure, and the low-temperature magnetic and thermal properties.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2023 > SKM