Solid state chemistry for new quantum materials
We are interested in identifying, designing and synthesizing complex solid-state compounds as a platform for the realization of emergent quantum phenomena. By combining advanced crystal growth with soft chemistry methods for selective anion exchange and cation intercalation/deintercalation, we try to access unusual coordination and oxidation states in transition metal based compounds.
In order to establish structure-property relations to guide materials discovery, we pursue a detailed structural and electronic characterization of the synthesized materials. As quantum materials are often characterized by a delicate interplay between structural, electronic and magnetic orders, this requires the use complementary experimental techniques (eg, X-ray and neutron scattering, and X-ray and muon spin spectroscopies) placing our research at the interface between solid state chemistry and condensed matter physics.
We currently focus on the study of low dimensional and frustrated magnets, and in the development of new magnetic van der Waals materials. We are always looking for innovative preparative solid-state chemistry procedures for the synthesis of new materials.
The group is led by Sara López Paz, tenure-track assistant professor at the Department of Chemistry, University of Copenhagen.
- Lukovkina, A., López-Paz, S. A., Besnard, C., Guenee, L., von Rohr, F. O., Giannini, E. Controlling the Magnetic Properties of the van der Waals Multiferroic Crystals Co1–xNixI2. Chem. Mater. 2024, https://doi.org/10.1021/acs.chemmater.4c01053 (abstract)
- Witteveen, C; Nocerino, E.; López-Paz, S. A. ; Jeschke, H. O.; Pomjakushin, V. Y.; Månsson, M.; von Rohr, F.O. Synthesis and Anisotropic Magnetic Properties of LiCrTe2 Single Crystals with a Triangular-Lattice Antiferromagnetic Structure. Journal of Physics: Materials 2023, 6 (3), 035001 (abstract)
- Gómez-Toledo, M; López-Paz, S. A.; Garcia-Martin, S.; Arroyo-de Dompablo, M. Metal-to-Insulating Transition in the Perovskite System YSr2Cu2FeO8−δ (0 < δ < 1) Modeled by DFT Methods. Inorg. Chem. 2023, 62, 8, 3445–3456 (abstract)
- López-Paz, A., Guguchia, Z., Pomjakushin, V. Y., Witteveen, C., Cervellino, A., Luetkens, H., Casati, N., Morpurgo, A. F., von Rohr, F.O.; Dynamic magnetic crossover at the origin of the hidden-order in van der Waals antiferromagnet CrSBr. Nature Communications 2022, 13, 4745 (abstract)
- Wu, F.,;Gutierrez-Lezama, I. ; Lopez-Paz, S.A.; Gibertini, M.; Watanabe, K.; Taniguchi. T.; von Rohr, F. O.; Ubrig, N.; Morpurgo, F.; Quasi 1D electronic transport in a 2D magnetic semiconductor. Advanced Materials 2022, 34, 2109759 (abstract)
- López-Paz, S. A.; Marín-Gamero, R.; Martínez de Irujo-Labalde, X.; Sánchez-Marcos, J.; Perez-Coll, D.; Alario-Franco, M.A.; García-Martín, S. YBaCuO-type perovskites as potential air electrodes for SOFCs. Journal of Materials Chemistry A 2021, 9, 8554-8560 (abstract)
- López-Paz, S. A.; Sari, D.P.; Hillier, A.D.; Alario-Franco, M.A. Coexistence of magnetism and superconductivity in the iron containing FeSr2YCu2O7.57 cuprate as studied by μSR. AIP Advances 2021, 11, 015011-015017 (abstract)
- López-Paz, S. A.; Nakano, K.; Sanchez-Marcos, J.; Tassel, C.; Alario-Franco, M. A.; Kageyama, H. Hydride-Reduced Eu2SrFe2O6: A T-to-T′ Conversion Enabling Fe2+ in Square-Planar Coordination. Inorganic Chemistry 2020, 59, 17, 12913–12919 (abstract)
- de Irujo-Labalde, X. M.; López-Paz, S. A.; García-Martín, S.; Alario-Franco, M. Á. A Far from Conventional Tc-p Correlation in the Highly Doped Superconducting Molybdo-Cuprates: The Case of Mo0.3Cu0.7Sr2TmCu2O7+δ. Journal of Solid State Chemistry 2020, 286, 121289-121296 (abstract)
- López-Paz, S. A.; Martínez De Irujo-Labalde, X.; Sánchez-Marcos, J.; Ritter, C.; Moran, E.; Alario-Franco, M. A. Soft Magnetic Switching in a FeSr2YCu2O7.85 Superconductor with Unusually High Iron Valence. Inorganic Chemistry 2019, 58 (19), 12809–12814 (abstract)