Dresden 2026 – scientific programme
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MA: Fachverband Magnetismus
MA 7: Poster Magnetism I
MA 7.2: Poster
Monday, March 9, 2026, 09:30–12:30, P2
Disorder-driven magnetic duality in ktenasite — •Anton Kulbakov1, Kaushick Parui1, Roman Gumeniuk2, Eduardo Carrillo-Aravena3,4, María Teresa Fernández-íiaz5, Stanislav Savvin5,6, Artem Korshunov7, Sergey Granovsky1, Thomas Doert3, Dmytro Inosov1, and Darren Peets1 — 1IFMP, TUD, Dresden, Germany — 2Institut für Experimentelle Physik, TU Bergakademie Freiberg, 09596 Freiberg, Germany — 3Fakultät für Chemie und Lebensmittelchemie, TUD — 4Würzburg-Dresden ct.qmat, TUD, Dresden, Germany — 5ILL, 71 avenue des Martyrs, CS 20156, 38042 Grenoble CEDEX 9, France — 6ICMA, Facultad de Ciencias, CSIC Universidad de Zaragoza, 50009 Zaragoza, Spain — 7DIPC, Paseo Manuel de Lardizábal, 20018 San Sebastián, Spain
Ktenasite is a rare platform where structural disorder tunes the effective dimensionality and stabilizes coexisting ordered and glassy magnetic phases, offering a unique opportunity to explore the interplay of frustration, disorder, and dimensional crossover in quantum magnets. Neutron diffraction reveals significant Cu/Zn mixing at the Cu2 site, which tunes the Cu2+ sublattice from a two-dimensional scalene-distorted triangular lattice into a one-dimensional spin-chain network. Magnetic susceptibility, neutron diffraction, ac susceptibility, and specific heat measurements collectively indicate magnetic duality.
Keywords: neutron diffraction; Magntism; Spin-glass; Spin-chain; quantum spin