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  1. Article

    Open Access

    Discovery of charge order above room-temperature in the prototypical kagome superconductor La(Ru1−xFex)3Si2

    The kagome lattice is an intriguing and rich platform for discovering, tuning and understanding the diverse phases of quantum matter, crucial for advancing modern and future electronics. Despite considerable e...

    I. Plokhikh, C. Mielke III, H. Nakamura, V. Petricek, Y. Qin… in Communications Physics (2024)

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  2. Article

    Open Access

    Hidden magnetism uncovered in a charge ordered bilayer kagome material ScV6Sn6

    Charge ordered kagome lattices have been demonstrated to be intriguing platforms for studying the intertwining of topology, correlation, and magnetism. The recently discovered charge ordered kagome material ScV6S...

    Z. Guguchia, D. J. Gawryluk, S. Shin, Z. Hao, C. Mielke III… in Nature Communications (2023)

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  3. Article

    Open Access

    Low-temperature magnetic crossover in the topological kagome magnet TbMn6Sn6

    Magnetic topological phases of quantum matter are an emerging frontier in physics and materials science, of which kagome magnets appear as a highly promising platform. Here, we explore magnetic correlations in...

    C. Mielke III, W. L. Ma, V. Pomjakushin, O. Zaharko, S. Sturniolo… in Communications Physics (2022)

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  4. No Access

    Article

    Time-reversal symmetry-breaking charge order in a kagome superconductor

    The kagome lattice1, which is the most prominent structural motif in quantum physics, benefits from inherent non-trivial geometry so that it can host diverse quantum phases, ranging from spin-liquid phases, to to...

    C. Mielke III, D. Das, J.-X. Yin, H. Liu, R. Gupta, Y.-X. Jiang, M. Medarde… in Nature (2022)

  5. No Access

    Article

    Tunable conductivity threshold at polar oxide interfaces

    The physical mechanisms responsible for the formation of a two-dimensional electron gas at the interface between insulating SrTiO3 and LaAlO3 have remained a contentious subject since its discovery in 2004. Opini...

    M.L. Reinle-Schmitt, C. Cancellieri, D. Li, D. Fontaine… in Nature Communications (2012)

  6. No Access

    Article

    X-ray Absorption at the Pr L1-edge in PrNiO3

    X-ray absorption near edge structure (XANES) measurements at the Pr L1-edge of PrNiO3 exhibit a change across the metal insulator transition. This structural change is consistent with the observation of a lattice...

    J. Mustre de León, M. Acosta-Alejandro… in Journal of Superconductivity and Novel Mag… (2009)

  7. No Access

    Article

    Heavily doped bilayer manganites: links among structure, charge, and spin

    Bilayer manganites La2-2xSr1+2xMn2O7 offer an exceptional opportunity to explore the connections among crystal structure, magnetic structure, and charge order. We have recently succeeded in synthesis of the phase...

    J.F. Mitchell, C.D. Ling, J.E. Millburn, D.N. Argyriou, A. Berger… in Applied Physics A (2002)

  8. No Access

    Article

    Plant cell factories as a source for anti-cancer lignans

    The review places podophyllotoxin, a powerful anti-cancer material used in clinical treatment of small cell cancers, in focus. The economical synthesis of podophyllotoxin is not feasible and demand for this ma...

    R.R.J. Arroo, A.W. Alfermann, M. Medarde, M. Petersen, N. Pras… in Phytochemistry Reviews (2002)

  9. No Access

    Article

    Giant Oxygen Isotope Effect on the Metal-Insulator Transition of RNiO3 Perovskites

    The metal to insulator transition displayed by all the members of the perovskite family RNiO3 (R=4f rare earth different from La) has attracted a lot of interest since it constitutes one of the few examples of th...

    M. Medarde, P. Lacorre, K. Conder, F. Fauth, A. Furrer in Journal of Superconductivity (1999)

  10. No Access

    Chapter

    Magnetic 2-D and 3-D Ordering Phenomena in Rare-Earth Based Copper-Oxide Superconductors and Related Systems

    Magnetic ordering phenomena in high-Tc compounds of rare earths R and Y of type R1Ba2Cu3O7-δ (R1–2–3), R1Ba2Cu4O8 (R1–2–4), R2Ba4Cu7O15-δ (R2–4–7) and of related systems, mainly based on elastic neutron scatterin...

    P. Fischer, M. Medarde in Neutron Scattering in Layered Copper-Oxide Superconductors (1998)

  11. No Access

    Article

    Oxygen vacancy ordering in La2− x SrxNiO4 − δ (0 ≤ ≤ 0.5): the crystal structure and defects investigated by neutron diffraction

    The oxygen deficient and formally Ni1+-Ni2+ mixed-valence La2−x SrxNiO4−δ system has been studied by means of neutron diffraction. It is found that, for the described synthesis pr...

    M. Medarde, J. Rodríguez-Carvajal in Zeitschrift für Physik B Condensed Matter (1997)