Category Technology/Electronics

Physicists find a novel way to Switch Antiferromagnetism On and Off

antiferromagnetism device
In turning antiferromagnetism on and off, MIT physicists may have found a route towards faster, denser, and more secure memory devices.
Credits:Credit: stock image

The findings could lead to faster, more secure memory storage, in the form of antiferromagnetic bits. When you save an image to your smartphone, those data are written onto tiny transistors that are electrically switched on or off in a pattern of “bits” to represent and encode that image. Most transistors today are made from silicon, an element that scientists have managed to switch at ever-smaller scales, enabling billions of bits, and therefore large libraries of images and other files, to be packed onto a single memory chip.

But growing demand for data, and the means to store them, is driving scientists to search beyond...

Read More

A Silver Lining for Extreme Electronics

A photograph shows the silver lines of circuit leads, which have been patterned to look like a Spartan helmet. Circuit design by MSU veterinarian Jane M. Manfredi.
MSU researchers developed a process to create more resilient circuitry, which they demonstrated by creating a silver Spartan helmet. The circuit was designed by Jane Manfredi, an assistant professor in the College of Veterinary Medicine. Credit: Acta Materialia Inc./Elsevier

Michigan State researchers are building tougher circuits to help withstand the grueling demands of energy production, space exploration and more. Tomorrow’s cutting-edge technology will need electronics that can tolerate extreme conditions. That’s why a group of researchers led by Michigan State University’s Jason Nicholas is building stronger circuits today.

Nicholas and his team have developed more heat resilient silver circuitry with an assist from nickel...

Read More

Single Photon Switch Advance

The ability to turn on and off a physical process with just one photon is a fundamental building block for quantum photonic technologies. Realizing this in a chip-scale architecture is important for scalability, which amplifies a breakthrough by City College of New York researchers led by physicist Vinod Menon. They’ve demonstrated for the first time the use of “Rydberg states” in solid state materials (previously shown in cold atom gases) to enhance nonlinear optical interactions to unprecedented levels in solid state systems. This feat is a first step towards realizing chip-scale scalable single photon switches.

In solid state systems, exciton-polaritons, half-light half-matter quasiparticles, which result from the hybridization of electronic excitations (excitons) and photons, a...

Read More

Silicon could be a Photonics Game-Changer

Ben_murdin_photonics

New research from the University of Surrey has shown that silicon could be one of the most powerful materials for photonic informational manipulation — opening up new possibilities for the production of lasers and displays.

While computer chips’ extraordinary success has confirmed silicon as the prime material for electronic information control, silicon has a reputation as a poor choice for photonics; there are no commercially available silicon light-emitting diodes, lasers or displays.

Now, in a paper published by Light: Science and Applications journal, a Surrey-led international team of scientists has shown that silicon is an outstanding candidate for creating a device that can control multiple light beams.

The discovery means that it is now possible to produce silicon pro...

Read More