Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Rare material key to computer advances

Rare material key to computer advances

Researchers from Victoria University of Wellington have answered fundamental questions about a rare class of materials that could lead to faster, more reliable memory storage in computers.


Dr Ben Ruck, Professor Joe Trodahl and Dr Franck Natali from the School of Chemical and Physical Sciences, have spent several years understanding the properties of rare-earth nitrides (RENs), thin films grown under ultra-high vacuum which are both magnetic and semiconducting.

The team is one of only a few worldwide exploring commercial applications of RENs, with two concepts already patented. They include developing the first magnetic memory storage devices based on RENs, called magnetic tunnel junctions.

A computer has two types of memory, a hard disk drive coated with magnetic material, and random-access memory (RAM) that stores data electrically, explains Dr Ruck. The issue with RAM is that it does not retain information when the host computer turns off.

“What we’re working on is a magnetic type of RAM that doesn’t disappear. Because data is retained when the power is switched off, a device can perform faster, be more versatile and use less energy. This is ideal, as an example, for cloud data storage spanning across multiple servers,” says Dr Ruck.

In collaboration with a team of researchers in France, based at the Centre for Research on Hetero-Epitaxy and Applications, which has facilities to grow pure versions of RENs, Dr Ruck and his colleagues are also in the process of testing a new way to control how RENs use electricity.

“No one has made a magnetic semi-conductor where you can truly control the electrical conductivity. Our results provide a new way to control conduction precisely, meaning you can swap a device from being magnetic to non-magnetic, surpassing existing electronics regarding speed and power consumption.”

This is a significant breakthrough for developing and constructing spintronics devices, an emerging technology where the spin of an electron is controlled to manipulate its charge.

ends

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Company Results: Air NZ Rides The Tourism Boom With Record Full-Year Earnings

Air New Zealand has ridden the tourism boom and staved off increased competition to deliver the best full-year earnings in its 76-year history. More>>

ALSO:

New PGP: Sheep Milk Industry Gets $12.6M Crown Funding

The Sheep - Horizon Three programme aims to develop "a market driven, end-to-end value chain generating annual revenues of between $200 million and $700 million by 2030," according to a joint statement. More>>

ALSO:

Half Full: Fonterra Raises Forecast Milk Price

Fonterra Co-operative Group Limited today increased its 2016/17 forecast Farmgate Milk Price by 50 cents to $4.75 per kgMS. When combined with the forecast earnings per share range for the 2017 financial year of 50 to 60 cents, the total payout available to farmers in the current season is forecast to be $5.25 to $5.35 before retentions. More>>

ALSO:

Keep Digging: Seabed Ironsands Miner TransTasman Tries Again

The first company to attempt to gain a resource consent to mine ironsands from the ocean floor in New Zealand's Exclusive Economic Zone has lodged a new application containing fresh scientific and other evidence it hopes will persuade regulators after their initial application was turned down in 2014. More>>

Wool Pulled: Duvets Sold As ‘Premium Alpaca’ Mostly Sheep’s Wool

Rotorua business Budge Collection Limited (Budge) and sole director, Sun Dong Kim, were convicted and fined a total of $71,250 in Auckland District Court after each pleading guilty to four charges of misrepresenting how much alpaca fibre was in their duvets. More>>

Reserve Bank: Labour Calls For Monetary Policy To Expand Goals

Labour's comments follow a speech today by RBNZ governor Graeme Wheeler in which Wheeler sought to answer critics who variously say he should stop lowering interest rates, lower them faster, or that inflation-targeting should no longer be the primary goal of the central bank's activities. More>>

ALSO:

BSA Extension And Sunday Morning Ads: Digital Convergence Bill Captures Online Content

Broadcasting Minister Amy Adams has today announced the Government’s plans to update the Broadcasting Act to better reflect today’s converged market... The Government considered four areas as part of its review into content regulation: classification requirements, advertising restrictions, election programming and contestable funding. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news