ENHANCED OPTO-SPINTRONIC FUNCTIONALITIES IN LAYERED HYBRID METAL-HALIDE PEROVSKITES
Timo Neumann, Felix Deschler, TU Munich and Mateusz Dyksik, Paulina Plochocka, LNCMI Toulouse. Hybrid metal-halide perovskites offer the opportunity for a novel control of spins in a high-performance semiconductor due to their exceptional tolerance to structural defects and impurities, combined [...]
LOCALLY COMMENSURATE CHARGEDENSITY WAVE WITH THREE-UNIT-CELL PERIODICITY IN YBa2Cu3Oy
Igor Vinograd and Marc-Henri Julien, LNCMI Grenoble. The ubiquity of charge-density waves (CDW) in cuprate superconductors is now well established, but the mechanism responsible for their formation remains debated. The generic aspects of the microscopic structure of the CDW are [...]
STRANGE METAL TRANSPORT IN THE ELECTRONIC NEMATIC FeSe1-xSx
Matija Čulo, Salvatore Licciardello, and Nigel Hussey, HFML. Researchers from HFML, UK, USA, and Japan have carried out a detailed magnetotransport study of the electronic nematic superconductor FeSe1-xSx that reveals key signatures of the so-called ‘strange metal’ behavior in vicinity [...]
ELECTRIC QUADRUPOLAR CONTRIBUTIONS IN THE MAGNETIC PHASES OF UNi4B
Tatsuya Yanagisawa, Hokkaido University and Sergei Zherlitsyn, HLD Dresden. Researchers from Japan and the Czech Republic, together with scientists from the HLD, have succeeded in identifying that electric quadrupoles play an important role in the magnetic order of the honeycomb-layer [...]
SPIN-VALLEY-SPLIT SHUBNIKOV-DE HAAS OSCILLATIONS IN WSe2 MONOLAYERS
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. [...]
POLARIZED EMISSION OF CdSe NANOCRYSTALS IN STRONG MAGNETIC FIELDS: THE ROLE OF PHONON-ASSISTED RECOMBINATION OF THE DARK EXCITON
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. [...]
THERMODYNAMIC SIGNATURE OF THE PUTATIVE ELECTRONIC-NEMATIC TRANSITION IN CeRhIn5
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 [...]
UNCONVENTIONAL HALL RESPONSE IN THE QUANTUM LIMIT OF HfTe5
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 [...]
TUNING THE EXCITONIC PROPERTIES OF A TWO-DIMENSIONAL PEROVSKITE FAMILY VIA QUANTUM CONFINEMENT
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 [...]
REDUCED HALL CARRIER DENSITY ACROSS THE STRANGE METAL PHASE OF CUPRATES
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 [...]