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Crystallography helps to combat the SARS-CoV-2 virus

Crystallography helps to combat the SARS-CoV-2 virus

The crystal structure of a drug tested against Covid-19 was solved using Fox computer program, developed in the Laboratory of crystallography at the Department of quantum matter physics (DQMP), UNIGE. Recently, a team of researchers from the Illinois Institute of Technology, North Central College and the International Centre for Diffraction Data (ICDD) has reported the…

The LTA contributes to the research on the Covid-19

The LTA contributes to the research on the Covid-19

To achieve optimal virus detection – such as the Covid-19 – using surface plasmon resonance (SPR), a leading SPR manufacturer is relying on glass prisms with a high-quality gold thin film sensor custom grown in the LTA laboratory (Fig.1).    Optical biosensors based on SPR – a high sensitive optical method of analysis – enable…

Creating custom light using 2D materials

Creating custom light using 2D materials

Researchers from UNIGE and the University of Manchester have discovered structures based on two-dimensional materials that emit tailor-made light in any colour you could wish for. Finding new semi-conductor materials that emit light is essential for developing a wide range of electronic devices. But making artificial structures that emit light tailored to our specific needs…

The Key player problem in electric power grids

The Key player problem in electric power grids

Identifying key players is a fundamental problem in network theory. Its origin can be traced back to social sciences and the problem led to ranking algorithms from most to least important player based on the structure of the considered network. Perhaps the most famous such ranking is google’s PageRank. Identifying which power plant or which…

New Rigaku XtaLAB Synergy-S diffractometer installed in the Laboratory of Crystallography

New Rigaku XtaLAB Synergy-S diffractometer installed in the Laboratory of Crystallography

A new single-crystal X-ray diffractometer was installed in the Laboratory of Crystallography. This dual micro-focus source diffractometer (Mo, Cu) is equipped with a new generation curved photon counting X-ray detector (RIGAKU Hypix arc 150), allowing very fast measurements since more data are collected in a single exposure. The detector has almost zero noise, fast readout…

RTS1 CQFD “Le noir plus noir que noir”, interview of Prof. Alberto Morpurgo

RTS1 CQFD “Le noir plus noir que noir”, interview of Prof. Alberto Morpurgo

There was the black colour. There is now an even more black coulour. An ultra-black that is of particular interest to artists who can now rely on scientists to get ever closer to the black. Stéphane Délétroz interviews Alberto Morpurgo, professor at DQMP and expert in nanoelectronics. Listen to the radio broadcast Find also the…

Scanning near-field optical microscopy of LaAlO3/SrTiO3 heterostructures

Scanning near-field optical microscopy of LaAlO3/SrTiO3 heterostructures

The interface between LaAlO3 and SrTiO3 hosts a conducting two dimensional electron system with many interesting properties. Since its discovery in 2004, this system has been intensively studied but there are still several open questions mainly related to the presence of local modulations of the electronic properties. Visualizing these effects remains challenging as it requires…

On-demand control of terahertz and infrared waves

On-demand control of terahertz and infrared waves

Researchers from the University of Geneva and the University of Manchester have confirmed experimentally the theory of very strong magneto-optical resonance in graphene. The ability to control infrared and terahertz waves using magnetic or electric fields is one of the great challenges in physics that could revolutionise opto-electronics, telecommunications and medical diagnostics. A theory from…

A family of finite-temperature electronic phase transitions in graphene multilayers

A family of finite-temperature electronic phase transitions in graphene multilayers

The discovery of graphene –a single crystalline sheet of carbon atoms– represents a true breakthrough because not only showcases the amazing level of material control that has been reached, but also it has enabled the observation of a plethora of fascinating physical phenomena. It has been appreciated since the very first days that graphene layers…

Quantum Magnets under Pressure

Quantum Magnets under Pressure

Quantum magnets have evolved over the past decade into systems of large interest in fundamental and, increasingly, in applied physics. Their exceptional properties, including non-magnetic ground states, fractionalised excitations and topological order, have become candidate resources for quantum information and computing. Application in spintronic devices are possible if spin interactions can be controlled. It has long been known that…

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