López Paz Group

Solid state chemistry for new quantum materials

An overview of research on quantum materials — combining crystal growth, soft‑chemistry synthesis, and advanced structural and electronic characterization to design next‑generation functional materials.

Contact

Sara López Paz

Assistant Professor

Office: B218
Phone: +45 9356 5321
E-mail: salp@chem.ku.dk

Quantum materials underly many current technologies and promise to revolutionize many more, from more efficient energy conversion devices to modern quantum computers.

In these materials the electronic correlation drives exotic collective physical phenomena, including magnetism, superconductivity, and complexity in between. We are interested in the discovery of new quantum materials by combining an exploratory chemistry approach with a directed low-temperature functionalization.

By designing compositional and structural changes in extended solids we aim to stablish structure-properties relationships towards the desired physical properties.

 

 

  • 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)