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NEWSROOM


Bright quantum light emission achieved at room temperature in 2D semiconductors
Nanohole-induced confinement and charge neutralization deliver bright, stable quantum emission without electrical gating
Apr 145 min read


Physicists open door to future, hyper-efficient ‘orbitronic’ devices
For the first time ever, researchers prove that atomic vibrations can transfer orbital angular momentum directly to electrons in a non-magnetic material with chiral symmatry, the most streamlined system yet in the exciting new field of ‘orbitronics’
Feb 244 min read


Microscopic laser can halve a computer’s energy use
DTU researchers have invented a nanolaser constructed in a semiconductor membrane that causes electrons and light to gather in a small area (blue shadow). By using light instead of electrical signals on microchips, data speed can be increased and energy loss reduced. Illustration: Yi Yu. The invention of a nanolaser is the first step towards future digital communication, where communication on microchips can be based entirely on light particles. Researchers at DTU have develo
Feb 163 min read


Light changes a magnet’s polarity
The researchers used a laser pulse (blue) to change the polarity of a ferromagnetic state in a special material consisting of twisted atomic layers (red). (Visualisation: Enrique Sahagún, Scixel / ETH Zurich, University of Basel) Researchers at ETH Zurich and the University of Basel have succeeded in changing the polarity of a special ferromagnet using a laser beam. In the future, this method could be used to create adaptable electronic circuits with light. In a ferroma
Feb 43 min read


Chiral phonons create orbital current via their own magnetism
In a new study, an international group of researchers has found that chiral phonons can create orbital current without needing magnetic elements – in part because chiral phonons have their own magnetic moments. Additionally, this effect can be achieved in common crystal materials. The work has potential for the development of less expensive, energy-efficient orbitronic devices for use in a wide array of electronics. All electronic devices are based upon the charge of an elect
Jan 222 min read


Team discovers unexpected oscillation states in magnetic vortices
Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have uncovered previously unobserved oscillation states – so-called Floquet states – in tiny magnetic vortices. Unlike earlier experiments, which required energy-intensive laser pulses to create such states, the team in Dresden discovered that a subtle excitation with magnetic waves is sufficient. This finding not only raises fundamental questions in basic physics but could also eventually serve as a universal ada
Jan 93 min read
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