NUS Engineers Achieve Significant Breakthrough in Spin Wave Based Information Processing Technology
July 28, 2017 | NUSEstimated reading time: 2 minutes
Conventional electronic devices make use of semiconductor circuits and they transmit information by electric charges. However, such devices are being pushed to their physical limit and the technology is facing immense challenges to meet the increasing demand for speed and further miniaturisation. Spin wave based devices, which utilise collective excitations of electronic spins in magnetic materials as a carrier of information, have huge potential as memory devices that are more energy efficient, faster, and higher in capacity.
A research team led by Professor Adekunle Adeyeye from NUS Engineering developed a novel method for the simultaneous propagation of spin wave signals in multiple directions at the same frequency, without the need for any external magnetic field.
While spin wave based devices are one of the most promising alternatives to current semiconductor technology, spin wave signal propagation is anisotropic in nature – its properties vary in different directions – thus posing challenges for practical industrial applications of such devices.
A research team led by Professor Adekunle Adeyeye from the Department of Electrical and Computer Engineering at the National University of Singapore (NUS) Faculty of Engineering, has recently achieved a significant breakthrough in spin wave information processing technology. His team has successfully developed a novel method for the simultaneous propagation of spin wave signals in multiple directions at the same frequency, without the need for any external magnetic field.
Using a novel structure comprising different layers of magnetic materials to generate spin wave signals, this approach allows for ultra-low power operations, making it suitable for device integration as well as energy-efficient operation at room temperature.
“The ability to propagate spin waves signal in arbitrary directions is a key requirement for actual circuitry implementation. Hence, the implication of our invention is far-reaching and addresses a key challenge for the industrial application of spin wave technology. This will pave the way for non-charge based information processing and realisation of such devices,” said Dr Arabinda Haldar, who is the first author of the study and was formerly a Research Fellow with the Department at NUS. Dr Haldar is currently an Assistant Professor at Indian Institute of Technology Hyderabad.
The research team published the findings of their study in the scientific journal Science Advances on 21 July 2017. This discovery builds on an earlier study by the team that was published in Nature Nanotechnology in 2016, in which a novel device that could transmit and manipulate spin wave signals without the need for any external magnetic field or current was developed. The research team has filed patents for these two inventions.
“Collectively, both discoveries would make possible the on-demand control of spin waves, as well as the local manipulation of information and reprogramming of magnetic circuits, thus enabling the implementation of spin wave based computing and coherent processing of data,” said Prof Adeyeye.
Moving forward, the team is exploring the use of novel magnetic materials to enable coherent long distance spin wave signal transmission, so as to further the applications of spin wave technology.
The project was supported by the National Research Foundation Singapore’s Competitive Research Programme.
Suggested Items
Terran Orbital’s GEOStare SV2 Captures 3 Years of Success in High-Resolution Imaging
05/17/2024 | BUSINESS WIRETerran Orbital Corporation, a global leader in satellite-based solutions primarily serving the aerospace and defense industries, celebrates the 3rd anniversary of its successful GEOStare SV2 mission. Launched on May 15, 2021, from NASA’s Kennedy Space Center in Florida, GEOStare SV2 has surpassed expectations, delivering exceptional results for commercial satellite imagery.
Indium Experts to Present on High-Temperature, Lead-Free Solder Paste and High Reliability Liquid Metal Alloys Poster at ECTC
05/16/2024 | Indium CorporationIndium Corporation Research Associate Kyle Aserian will deliver a presentation at the 74th Electronic Components and Technology Conference (ECTC) on May 31, in Denver, Colorado.
Siemens, Foxconn Team Up to Optimize Forward-thinking Manufacturing
05/16/2024 | FoxconnSiemens AG, a leading technology company, and Hon Hai Technology Group (Foxconn), the world’s largest electronics manufacturer, have signed a memorandum of understanding (MoU) to drive digital transformation and sustainability in smart manufacturing platforms.
TactoTek Licenses IMSE Technology to Polestar for Sustainable Electronics Design Innovation
05/15/2024 | TactoTekPolestar, the Swedish electric performance car brand, and Finnish smart surface pioneer TactoTek, have entered a collaboration to explore integration of Injection Molded Structural Electronics (IMSE) technology into Polestar’s vehicle programs.
SiPearl: Partnership with Samsung Electronics for built-in HBM in Rhea
05/14/2024 | BUSINESS WIRESiPearl, the company building the high-performance low-power European microprocessor for HPC and AI inference, has signed a partnership with Samsung Electronics Co. Ltd., a world leader in advanced memory technology, to equip its Rhea series with Samsung’s advanced memory solution ideal for HPC and AI applications.