Search results for dirac

Superconductivity Nov 29, 2022

Emergent charge order brings new physics in pressurized kagome superconductor

Superconductors lose their electrical resistance when cooled below a certain threshold temperature. With their promising application future as well as glamorous physical mechanisms, superconductors appeal to numerous scientists ...

Condensed Matter Nov 8, 2022

Experiment unveils Berry curvature mechanism for linear positive magnetoresistance

A research group lead by Prof. Liu Enke from the Institute of Physics of the Chinese Academy of Sciences (CAS) has established a physical model of Berry-curvature-dominated linear positive magnetoresistance (LPMR), providing ...

General Physics Oct 27, 2022

'Kagome' metallic crystal adds new spin to electronics

A multinational team of researchers, co-led by a City University of Hong Kong (CityU) physicist, has found that a novel metallic crystal displays unusual electronic behavior on its surface, thanks to the crystal's unique ...

Nanophysics Oct 26, 2022

Physicists see light waves moving through a metal

When we encounter metals in our day-to-day lives, we perceive them as shiny. That's because common metallic materials are reflective at visible light wavelengths and will bounce back any light that strikes them. While metals ...

General Physics Oct 26, 2022

Scientists discover exotic quantum state at room temperature

For the first time, physicists have observed novel quantum effects in a topological insulator at room temperature. This breakthrough, published as the cover article of the October issue of Nature Materials, came when Princeton ...

Optics & Photonics Oct 14, 2022

Physicists have developed a new photonic system with electrically tuned topological features

Scientists from the Faculty of Physics at the University of Warsaw in cooperation with the Military University of Technology, the Italian CNR Nanotec, the British University of Southampton and the University of Iceland obtained ...

Optics & Photonics Oct 14, 2022

Annihilation of exceptional points from various degeneration points observed for the first time

A team of researchers from the University of Warsaw in Poland, the Institute Pascal CNRS in France, the Military University of Technology in Poland and the British University of Southampton has shown that it is possible to ...

Astronomy Oct 4, 2022

Giant impact could have formed the Moon more rapidly, scientists reveal in new simulations

Scientists from Durham University's Institute for Computational Cosmology used the most detailed supercomputer simulations yet to reveal an alternative explanation for the Moon's origin, with a giant impact immediately placing ...

Optics & Photonics Sep 29, 2022

New technique enables shaping of electron beams

A new technique that combines electron microscopy and laser technology enables programmable, arbitrary shaping of electron beams. It can potentially be used for optimizing electron optics and for adaptive electron microscopy, ...

Optics & Photonics Sep 2, 2022

Dual-polarization two-dimensional valley photonic crystals

The introduction of topology in photonic systems has attracted considerable attention not only for the elaborate molding of light but also for its practical applications in novel photonic devices. Originally, the quantum ...

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