A Possible Game Changer for Next Generation Microelectronics

Multicolor patterns of arrows in pointing across, down. (Image by Argonne National Laboratory.)
Magnetic fields created by skyrmions in two-dimensional sheet of material composed of iron, germanium and tellurium. (Image by Argonne National Laboratory.)

Researchers have discovered new properties of tiny magnetic whirlpools called skyrmions. Their pivotal discovery could lead to a new generation of microelectronics for memory storage with vastly improved energy efficiency in high performance computers.

Magnets generate invisible fields that attract certain materials. A common example is fridge magnets. Far more important to our everyday lives, magnets also can store data in computers. Exploiting the direction of the magnetic field (say, up or down), microscopic bar magnets each can store one bit of memory as a zero or a one — the language of computers.

Scientists at the U.S...

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Black Holes in Eccentric Orbit

Numerical simulation representing the curvature of spacetime during the merger of the two black holes.Image: AG Bernuzzi/Universität Jena

A research team has reconstructed the origin of an unusual gravitational wave signal. The signal GW190521 may result from the merger of two massive black holes that captured each other in their gravitational field and then collided while spinning around each other in a rapid, eccentric motion.

When black holes collide in the universe, the clash shakes up space and time: the amount of energy released during the merger is so great that it causes space-time to oscillate, similar to waves on the surface of water...

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New Quantum Tool Developed in Groundbreaking Experimental Achievement

Advance of Quantum Wave

Scientists recreate properties of light in neutral fundamental particles called neutrons. For the first time in experimental history, researchers at the Institute for Quantum Computing (IQC) have created a device that generates twisted neutrons with well-defined orbital angular momentum. Previously considered an impossibility, this groundbreaking scientific accomplishment provides a brand new avenue for researchers to study the development of next-generation quantum materials with applications ranging from quantum computing to identifying and solving new problems in fundamental physics.

“Neutrons are a powerful probe for the characterization of emerging quantum materials because they have several unique features,” said Dr...

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Elusive, Dusty Inner Region of Distant Galaxy

The long-sought after innermost dusty ring was detected with the highest spatial resolution in the infrared wavelengths ever used. An international team of scientists has achieved the milestone of directly observing the long-sought, innermost dusty ring around a supermassive black hole, at a right angle to its emerging jet. Such a structure was thought to exist in the nucleus of galaxies but had been difficult to observe directly because intervening material obscured our line of sight.

Now the inner disk is detected using the highest spatial resolution in the infrared wavelengths ever done for an extragalactic object. The new discovery was just published in The Astrophysical Journal.

“This is a very exciting step forward to view the inner region of a distant galaxy with such fin...

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