Dresden 2026 – scientific programme
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MA: Fachverband Magnetismus
MA 19: Frustrated Magnets I (joint session MA/TT)
MA 19.8: Talk
Tuesday, March 10, 2026, 11:30–11:45, POT/0361
Guest*Controlled Quantum Magnetism in a Flexible Metal-Organic Framework — •Fang Liu1, Armin Schulz2, Axel Lubk4, Alexej Pashkin3, Sergej Granovski1, Shuhan Wang1, Weinel Kristina4, Herzog Max4, and Stefan Kaiser1 — 1Institute of Solid State and Materials Physic, Dresden University of Technology — 2Max Planck Institute for Solid State Research, Stuttgart — 3Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden — 4Leibniz Institute for Solid State and Materials Research, Dresden
Metal-organic frameworks provide an unusual setting where magnetic frustration and structural flexibility coexist. In our system, two distinct states emerge: a guest-stabilized regime with signatures of a potential quantum spin liquid, and a guest-free state exhibiting weak magnetic ordering. Raman and infrared spectroscopy reveal pronounced differences in lattice modes between these phases. Complementary Raman and THz measurements further uncover contrasting magnetic backgrounds. These findings establish a guest-controlled route to tuning magnetic quantum states in MOFs.
Keywords: metal-organic frameworks; quantum spin liquid; low temperature infrared spectroscopy; low temperature THz spectroscopy; low temperature Raman spectroscopy