News

The apparent inner calm of quantum materials

The apparent inner calm of quantum materials

Transitions between different phases of matter are part of our day-to-day lives: when water freezes, for example, it passes from liquid to solid state. Some of these transitions may be of a different kind, resulting from so-called topological excitations that force all the particles to act in unison. Researchers from the University of Geneva (UNIGE)…

When superconductivity disappears in the core of a quantum tube

When superconductivity disappears in the core of a quantum tube

Predicting the behaviour of electrons in a material is not easily done. Physicists from the University of Geneva (UNIGE), ETH Zurich and EPFL replaced the electrons with ultra-cold neutral lithium atoms that they had circulated in a one-dimensional quantum tube. The scientists were then able to confirm an unusual state of matter that retains its…

The complex effect of strain on the structure of perovskite vanadates

The complex effect of strain on the structure of perovskite vanadates

Scilight from AIP Publishing is talking about a recent publication of Hugo Meley and coworkers in APL Materials. Moving from discovering physical properties to the ability to tailor them requires precise understanding and mastery of materials fabrication. This study unveils how the substrate affects the growth of crystalline vanadate thin films and the arrangement of their…

Spotlight of FCC on Applied Superconductivity at DQMP

Spotlight of FCC on Applied Superconductivity at DQMP

A spotlight on the activities of the Group of Applied Superconductivity of the DQMP led by Prof. Carmine Senatore was posted on the official website of the Future Circular Collider (FCC) study at CERN. “Spotlight On” is the regular news series about EuroCirCol partners within the FCC study. The objective of EuroCirCol project is to…

Professor Jean-Marc awarded an honorary doctorate

Professor Jean-Marc awarded an honorary doctorate

Professor Jean-Marc has been awarded an honorary doctorate from the Norwegian University of Science and Technology for his work in pioneering interface engineering in functional oxides. Norwegian University of Science and Technology Group Triscone      

Ultra-subwavelength nano-optical microscopy at cryogenic temperatures at the DQMP

Ultra-subwavelength nano-optical microscopy at cryogenic temperatures at the DQMP

A unique cryogenic scanning near-field optical microscope (cryo-SNOM) has been installed at the DQMP and is now able to demonstrate the first promising results. In contrast to the conventional optical microscopes, in this system the sample is probed by the so called evanescent electromagnetic waves, which are emitted and detected by an ultrasharp metallized tip…

Advances in the study of the properties of superconducting materials

Advances in the study of the properties of superconducting materials

In a superconductor, the electrons experience very peculiar interactions whose most surprising effect is a total loss of electrical resistance. These materials are therefore promising for future applications, especially since some of them work at the temperature of liquid nitrogen. The mechanism behind these exceptional properties remains mysterious, though. Studying these materials when they are…

Towards mastering terahertz waves ?

Towards mastering terahertz waves ?

The terahertz waves span frequency ranges between the infrared spectrum (used, for example, for night vision) and gigahertz waves (which find their application, among other, in Wi-Fi connections). Terahertz waves allow for the detection of materials that are undetectable at other frequencies. However, the use of these waves is severely limited by the absence of…

Elastic properties revealed by thermal diffuse x-ray scattering

Elastic properties revealed by thermal diffuse x-ray scattering

High-precision measurements of thermal diffuse x-ray scattering revealed that the full elasticity tensor can accurately be obtained in a single crystal diffraction experiment. The new method opens the perspective to determine elastic properties together with crystal structure under the same experimental conditions. The results published in Physical Review Letters show, that absolute values can be…

Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO2

Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO2

Lattice vibrations (phonons) in crystals are typically weakly interacting with the electronic degrees of freedom, such as charge and spin fluctuations. Researchers in the team of Prof. Rüegg (DQMP, University of Geneva and LNS, Paul Scherrer Institute) together with collaborators from the École polytechnique fédérale de Lausanne, Japan and the USA discovered an unexpectedly strong…

Réalisation : Sur Mesure concept