Banan Kerdi, Mathieu Pierre, Michel Goiran, and Walter Escoffier, LNCMI Toulouse. Transition-metal dichalcogenides (TMDCs) are two-dimensional layered materials showing intriguing electronic properties, especially when thinned down to a single layer. We studied WSe2 monolayers fabricated at LNCMI-Toulouse through transport measurements. We measured the magnetoresistance at 4.2 K under pulsed magnetic [...]
Dmitri Yakovlev and Peter Christianen, HFML Nijmegen. For a few decades, colloidal semiconductor nanocrystals have been the focus of intensive research. Due to the continuous progress in technology, nanocrystals with different sizes, shapes, compositions, and surface properties have been synthesized. Understanding their optical, electrical, and chemical properties has led to [...]
Sanu Mishra, Albin Demuer, Ilya Sheikin, LNCMI Grenoble, and Dai Aoki, Tohoku University. Strongly correlated electron systems, such as high-temperature superconductors, iron-based superconductors, and heavy-fermion compounds, are of high experimental and theoretical interest. In these materials, unconventional superconductivity is believed to emerge near a quantum critical point. In addition, some [...]
S. Galeski, J. Gooth, MPI CPfS and T. Förster, HLD Dresden. The quantum Hall effect is a prominent example of a quantum phenomenon that is of great importance for research in solid-state physics and the application of electronic devices. Since 1990, it defines the standard used in resistance calibrations. It [...]
Mateusz Dyksik, Wrocław University of Science and Technology and Paulina Plochocka, LNCMI Toulouse. Two-dimensional (2D) metal-halide perovskites constitute an important step in the evolution of low-cost organic-inorganic hybrid light absorbers and emitters. Similar to their 3D counterparts, layered perovskites show promising performance in photovoltaic and light emitting devices while preserving [...]
Nigel Hussey, HFML and Anthony Carrington, University of Bristol. Researchers from the UK and Japan, together with scientists from three of the EMFL laboratories, have uncovered a striking crossover in the Hall resistivity across the so-called strange-metal phase of overdoped cuprate superconductors [1]. The work builds on a seminal work [...]
Sanu Mishra and Ilya Sheikin, LNCMI Grenoble, Tobias Förster, HLD Dresden, and Alix McCollam, HFML Nijmegen. Rare-earth-based materials are now widely recognized as an ideal playground for exploration of the fascinating physics that develops around a quantum critical point (QCP). In Ce-based compounds, such a QCP typically separates an antiferromagnetic [...]
Toni Helm, HLD Dresden. Strongly correlated electron materials, in particular heavy-fermion compounds, offer a huge playground for research on fundamental concepts in condensed-matter physics. The antiferromagnetic (AFM) metal CeRhIn5 provides a textbook example of quantum criticality in a heavy-fermion system: Pressure suppresses local-moment AFM order and induces superconductivity in a [...]
Mateusz Dyksik, Wroclaw University and Paulina Plochocka, LNCMI-Toulouse. Two-dimensional organic-inorganic halide perovskites have generated tremendous interest in the field of optoelectronics for applications in low-cost and efficient light absorbers and emitters. Similar to their three-dimensional (3D) ancestors, the layered perovskite derivatives exhibit promising performance in photovoltaic and lightemitting devices, [...]
David Leboeuf and Marc-Henri Julien, LNCMI-Grenoble. Extensive studies of cuprate superconductors have shown that, after three-dimensional Néel order disappears upon hole doping (p), there are still remnants of spin order at low temperature in the form of a glass-like freezing of incommensurate antiferromagnetic correlations. However, the importance of the [...]