Sat, Feb 25, 2017 | updated 07:58 AM IST

Self-flipping magnets could improve digital information storage

Updated: Jul 22, 2016 13:14 IST

Washington D.C, Jul 22 (ANI): A team of researchers has made magnets flip like cats at room temperature, which could prove valuable as a new material for digital information processing and storage.

Similar to the ability of a cat to flip itself in the air by twisting different parts of its body in different directions and land on its feet, these magnets can flip themselves through the internal motion of their own electrons.

"In these new magnetic materials, a current running through the magnet can turn around the direction of the magnetization depending on the direction of the current," explained Jairo Sinova of the Institute of Physics at Johannes Gutenberg University Mainz (JGU).

Sinova added, "This novel phenomenon in physics, dubbed spin-orbit torques, links the spin-degree of freedom of magnets which gives rise to the magnetization to the charge degree of freedom that allows for current-charge motion inside the material."

This novel effect has been pioneered, among others, by recent predictions by the Sinova group in Mainz together with theoretical and experimental collaborators. It occurs in magnetic materials that have broken-inversion symmetry.

The researchers first observed spin-orbit torques in the artificial bulk diluted magnetic semiconductor GaMnAs. GaMnAs is the diluted counterpart of crystalline zincblende structures of Silicon and Gallium arsenide, which are the pillars of modern electronics. However, in GaMnAs, spin-orbit torques were demonstrated only at very low temperatures.

Thanks to the synergetic teamwork of theorists and experimentalists, the researchers were able to predict and demonstrate the effect of spin-orbit torques in NiMnSb crystal at room temperature. NiMnSb was chosen according to the systematic analysis of the symmetry the crystal point groups in conjunction with microscopic first principles calculations of the effect. All electrical ferromagnetic resonance measurements were then used to detect the room-temperature spin-orbit torques in NiMnSb microbars.

Being able to use single magnet manipulation at room temperature represents an important step towards improved magnetic random access memory architectures for technical applications that are all fully electrical, highly scalable, and require low power.

The study appears in the journal Nature Physics. (ANI)

New Delhi [India], Feb 24 (ANI): Almost half of all phishing attacks (fraudulent email messages or copycat websites that appear legitimate) registered in 2016 by Kaspersky Lab's heuristic detection technologies, were aimed at stealing their victim's money, according to an analysis of the financial threat landscape by Kaspersky Lab the company's experts.

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WhatsApp's new 'status' feature goes live

Updated: Feb 24, 2017 12:25 IST

New Delhi [India], Feb. 24 (ANI): WhatsApp's on Friday rolled out its new feature 'Status' live across Android, iOS and Windows software wherein the users can upload pictures and videos for their contacts to see, instead of regular text status message.

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New Delhi [India], Feb 24 (ANI): World's leading information technology (IT) association CompTIA has unveiled a groundbreaking, vendor-neutral certification, CompTIA Cyber security Analyst (CSA+), the first of its kind to bring behavioral analytics to the forefront of assessing cyber threats.

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New Delhi [India], Feb. 24 (ANI): Verizon and Ericsson enabled an operational shift of 5G network from technology trials to pre-commercial pilots in the field in multiple cities across United States of America.

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Amsterdam [Netherlands]/Tokyo [Japan], Feb.23 (ANI): ISE 2017, the largest audio-visual and systems integration show, was held recently in Netherlands.

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New Delhi [India], Feb. 23 (ANI): Google has always made sure to celebrate every special affair around the globe.

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Mumbai (Maharashtra) [India], Feb. 22 (ANI): Microsoft's Chief Executive Officer (CEO) Satya Nadella on Wednesday announced the launch of a new skilling tool called 'Project Sangam' for Indian citizens.

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New Delhi [India], Feb 22 (ANI): According to Kaspersky Lab "Spam and phishing in 2016"report, about 20 percent of all spam emails in Q4 2016distributed ransomware Trojans. The Kaspersky Lab spam report also identified the following trends in 2016

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HP launches OMEN gaming portfolio in India

Updated: Feb 22, 2017 15:32 IST

New Delhi [India], Feb. 22 (ANI): HP Inc. launched the debut of its gaming portfolio in India - OMEN by HP, featuring an array of products built for gamers combining the latest in PC innovation, delivering power and performance to dominate competition.

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New Delhi [India], Feb. 22 (ANI): Optical fibre broadband service provider Spectranet on Wednesday announced their next phase of expansion in South India by launching its operations in Bengaluru.

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New Delhi, [India], Feb. 22 (ANI): ADDA GateKeeper, a security management platform for apartment complexes, launched a range of security measures to tighten security in large apartment complexes across most Tier I cities.

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Who controls your car without you knowing?

Updated: Feb 21, 2017 16:43 IST

New Delhi [India], Feb.21 (ANI): Kaspersky Lab researchers have examined the security of applications for the remote control of cars from several famous car manufacturers. As a result, the company's experts have discovered that all of the applications contain a number of security issues that can potentially allow criminals to cause significant damage for connected car owners.

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New Delhi [India], Feb 21 (ANI): World leader in digital security Gemalto is presenting the newest release of its On Demand Connectivity and eSIM technology for Windows 10 devices, in connection with Microsoft.

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New Delhi [India], Feb. 21 (ANI): In lieu of its eighth birthday on February 24, 2017, WhatsApp messenger, the instant messaging platform introduced a new update which is set to revamp the status feature.

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New Delhi [India], Feb 20 (ANI): NEC Corporation has announced that it has completed joint verification trials with NTT DOCOMO, Inc. using Massive Multiple Input Multiple Output (MIMO), a core technology for 5G base stations.

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New Delhi [India], Feb 19 (ANI): SyncNScan is a young company, which was set up by ex-Microsoft leaders and they were pioneers in introducing anti-virus for mobile devices.

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New Delhi [India], Feb. 17 (ANI): Ericsson introduced a 5G platform for the needs of the first movers in 5G. Communications are rapidly moving toward data-heavy applications like Virtual Reality and Augmented Reality everywhere.

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New Delhi [India], Feb. 17 (ANI): Aeris Communications' 'AerCloud' is an IoT cloud platform for collecting, managing and analysing sensor data for Internet of Things (IoT) and machine-to-machine (M2M) applications.

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New Delhi [India], Feb. 17 (ANI): Oracle India on Thursday announced that Oracle Management Cloud service has provided Indian companies with smarter insights and swifter action, thereby eliminating slow transactions.

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New Delhi [India], Feb 16 (ANI): LeEco, the internet and technology conglomerate's second generation Superphones Le2 (3+32) and Le Max2 to be a star attraction on popular e-commerce platform, Snapdeal during their Exchange Offer Days between February 16 to 18.

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