Matteriall’s Post

On Tuesday 20 August, Ali Nawaz Babar will defend his PhD thesis ‘Fabrication and characterization of silicon photonic cavities with atomic-scale confinement' – and you are invited!🚀 Data is all around us and is growing exponentially every year and will increase further with the emergence of generative AI🧠 Handling this data requires energy, and as the demand grows, so does the energy consumption. Our modern computing technology is also facing a significant environmental challenge, as the energy consumption of data centers is projected to reach 6.5% of global consumption by 2030📈 The goal is to gradually substitute the metal wires on chips in the data centers with optical connections that will operate at high efficiency and low power, resulting in greener computing technologies🌱 This calls for scalable and efficient photonic devices with small footprints to be integrated with their counterpart microelectronics in the form of a co-packaged photonic chip technology. In his thesis, Babar investigates a new regime of dielectric photonic devices, namely,  silicon bowtie nanocavities. A new method of fabrication is demonstrated by integrating top-down nanopatterning with bottom-up self-assembly to realize photonic nanocavities with atomic-scale confinement🤏 It combines the scalability of planar semiconductor technology with the atomic dimensions enabled by self-assembly. High-performance optical nanocavities and scalable fabrication approaches have the potential to transform computing technologies and lead to advanced electronic and photonic on-chip applications. Find practical details in link in the comment section 👇

Skyrmions move at record speeds: A step towards the computing of the future: Scientists have discovered that the magnetic nanobubbles known as skyrmions can be moved by electrical currents, attaining record speeds up to 900 m/s. Anticipated as future bits in computer memory, these nanobubbles offer enhanced avenues for information processing in electronic devices. Their tiny size provides great computing and information storage capacity, as well as low energy consumption. Until now, these nanobubbles moved no faster than 100 m/s, which is too slow for computing applications. However, thanks to the use of an antiferromagnetic material as medium, the scientists successfully had the skyrmions move 10 times faster than previously observed. These results offer new prospects for developing higher-performance and less energy-intensive computing devices. @Poseidon-US #ScienceDaily #Technology

MIT researchers have broken through the limits of silicon transistors by creating a 3D nanowire-based transistor that operates efficiently at low voltages using quantum tunneling. This innovation bypasses the "Boltzmann tyranny" constraint of silicon, enabling sharper switching and improved energy efficiency. These ultra-small transistors could lead to faster, more efficient electronics, paving the way for advancements in Artificial Intelligence (AI) and computing. Explore more on this groundbreaking research here. https://lnkd.in/gQA5eTqJ For expert assistance in material science and innovative solutions, visit FlaneyAssociates.com. #QuantumTunneling #NextGenTransistors #MaterialScience #FlaneyAssociates #EngineeringInnovation #Nanotechnology #Electronics

"EPFL engineers have created a device that can efficiently convert heat into electrical voltage at temperatures lower than that of outer space. The innovation could help overcome a significant obstacle to the advancement of quantum computing technologies, which require extremely low temperatures to function optimally. To perform quantum computations, quantum bits (qubits) must be cooled down to temperatures in the millikelvin range (close to -273 Celsius), to slow down atomic motion and minimize noise. However, the electronics used to manage these quantum circuits generate heat, which is difficult to remove at such low temperatures." #thermoelectricdevice

Modern high-speed internet relies on light to transmit large amounts of data quickly and reliably through fiber-optic cables. However, when data needs to be processed, the light signals face a bottleneck. They must first be converted into electrical signals for processing before they can continue being transmitted. An all-optical switch offers a solution. It uses light to control other light signals without the need for electrical conversion, which saves both time and energy in fiber-optic communication systems. A research team led by the University of Michigan has demonstrated an ultrafast all-optical switch using pulsing circularly polarized light, which twists like a helix, through an optical cavity lined with an ultrathin semiconductor. Their study was recently published in Nature Communications. This device can operate as a standard optical switch, where turning a control laser on or off switches the signal beam of the same polarization. It can also function as a logic gate known as an Exclusive OR (XOR) switch, which generates an output signal when one light input twists clockwise and the other counterclockwise, but not when both twist in the same direction. “Because a switch is the most elementary building block of any information processing unit, an all-optical switch is the first step towards all-optical computing or building optical neural networks,” said Lingxiao Zhou, a physics doctoral student at U-M and lead author of the study. This technology facilitates significant energy savings and introduces a method to control quantum properties in materials, promising major advancements in optical computing and fundamental science. #light #lasers #optics #communication #helix #quantum #controlsystems https://lnkd.in/gNSTZcqr

Researchers from the top universities collaborated to develop a photonic memory for 'artificial intelligence' that can be directly programmed and scaled with CMOS (complementary metal-oxide semiconductor) circuitry The solution involves using a resonance-based photonic architecture that leverages the non-reciprocal phase shift in magneto-optical materials. This means the magnetic field directs an incoming light signal (whether clockwise/counter-clockwise) through a resonator that intensifies certain light wavelengths enabling it to encode a number between one and minus one. The team was able to run more than 2 billion write-and-erase cycles without observing any performance degradation Particiapted Insititutions: -University of Pittsburgh Swanson School of Engineering -University of California - Santa Barbara -Università degli Studi di Cagliari -Tokyo Institute of Technology has #memory #AI #artificialintelligence Links: https://lnkd.in/g9D5d2qM https://lnkd.in/gW3Buh9v Research paper: https://lnkd.in/gxjkeRtW

Skyrmions move at record speeds: A step towards the computing of the future: Scientists have discovered that the magnetic nanobubbles known as skyrmions can be moved by electrical currents, attaining record speeds up to 900 m/s. Anticipated as future bits in computer memory, these nanobubbles offer enhanced avenues for information processing in electronic devices. Their tiny size provides great computing and information storage capacity, as well as low energy consumption. Until now, these nanobubbles moved no faster than 100 m/s, which is too slow for computing applications. However, thanks to the use of an antiferromagnetic material as medium, the scientists successfully had the skyrmions move 10 times faster than previously observed. These results offer new prospects for developing higher-performance and less energy-intensive computing devices. #ScienceDaily #Technology

MIT researchers have unveiled a groundbreaking transistor using a unique ferroelectric material made from atomically thin boron nitride layers. This innovation allows transistors to switch 100 billion times without degradation, addressing a key limitation in current memory technologies. By sliding layers slightly, they achieve dramatic electronic changes, paving the way for more durable, energy-efficient devices. While challenges in scaling for mass production remain, this breakthrough could redefine future electronics with applications in non-volatile memory and beyond. https://lnkd.in/evqAbqAs

🔍 Unlocking the Future of Electronics Researchers at City University of Hong Kong have made a groundbreaking discovery in vortex electric fields that may transform electronic, magnetic, and optical devices. This innovative research, published in *Science*, embraces the potential for enhanced memory stability and increased computing speed across various advanced technologies like quantum computing and spintronics. 🔧 A Simpler Approach Led by Professor Ly Thuc Hue, the team has developed a straightforward twisting method to induce vortex electric fields in bilayer 2D materials, eliminating the need for complex and expensive techniques. Their unique ice-assisted transfer method enables the creation of clean bilayer interfaces, facilitating precision in controlling twist angles—an advancement with a range from 0 to 60 degrees. 🌌 The Promise of Quasicrystals This pioneering work has led to the creation of a 2D quasicrystal known for its low heat and electric conductivity, which holds promise for ultrafast computing and stable memory applications. Tackling challenges associated with bilayer interfaces, the team utilized cutting-edge techniques, such as four-dimensional transmission electron microscopy (4D-TEM), to achieve this significant milestone. 🚀 What’s Next? With ambitions to explore stacking layers and applying their technique across other materials, the future looks bright for innovations in nanotechnology and quantum tech. This discovery could herald a new era for applications in device performance, memory solutions, spintronics, and sensing technologies. Stay Ahead in Tech! Connect with me for cutting-edge insights and knowledge sharing! Want to make your URL shorter and more trackable? Try linksgpt.com #BitIgniter #LinksGPT #QuantumComputing #Spintronics Want to know more: https://lnkd.in/dAtvMEgw

Researchers from the City University of Hong Kong have discovered a new vortex electric field in twisted bilayer molybdenum disulfide (MoS₂), achieved through an innovative ice-assisted transfer technique. This approach allows precise manipulation of twist angles in bilayer 2D materials, creating clean interfaces and enabling the generation of a 2D quasicrystal. The vortex electric field has potential applications in quantum computing, spintronics, and optical devices, promising advancements such as enhanced memory stability, ultrafast computing speeds, and novel polarization effects. This breakthrough simplifies the process of inducing vortex electric fields, which previously relied on complex, expensive methods, and opens new avenues for nanotechnology and quantum applications. For more details, please continue reading the full article under the following link: https://lnkd.in/e8XM7eKc -------------------------------------------------------- In general, if you enjoy reading this kind of scientific news articles, I would also be keen to connect with fellow researchers based on common research interests in materials science, including the possibility to discuss about any potential interest in the Materials Square cloud-based online platform ( www.matsq.com ), designed for streamlining the execution of materials and molecular atomistic simulations! Best regards, Dr. Gabriele Mogni Technical Consultant and EU Representative Virtual Lab Inc., the parent company of the Materials Square platform Website: https://lnkd.in/eMezw8tQ Email: gabriele@simulation.re.kr #materials #materialsscience #materialsengineering #computationalchemistry #modelling #chemistry #researchanddevelopment #research #MaterialsSquare #ComputationalChemistry #Tutorial #DFT #simulationsoftware #simulation