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

 

Scoop Business: Alex Swney Pleads Guilty To $2.5M Fraud Charge

Alex Swney, former chief executive of the Auckland city centre business association Heart of the City, has pleaded guilty to dishonestly using documents to obtain $2.5 million. More>>

ALSO:

Petrol Burns Prices: Second Consecutive Quarterly Fall For CPI

The consumers price index (CPI) fell 0.3 percent in the March 2015 quarter, following a 0.2 percent fall in the December 2014 quarter, Statistics New Zealand said today. The last time the CPI showed two consecutive quarterly falls was in the December 1998 and March 1999 quarters. More>>

ALSO:

Scoop Business: NZ Broadcasters Launch Battle Against Global Mode ISPs

New Zealand broadcasters have confirmed they’ve launched legal proceedings against internet service providers who give customers’ access to “global mode”, which allows customers access to offshore online content, claiming it breaches the local content providers’ copyright. More>>

ALSO:

Sanford: Closure Of Christchurch Mussel Processing Plant Confirmed

The decision comes after a period of consultation with the 232 staff employed at the Riccarton site, who were told on 9 April that Sanford was considering the future of mussel processing in Christchurch. Recent weather patterns had impacted on natural spat (offspring) supply... More>>

ALSO:

Price Of Cheese: Dairy Product Prices Fall To The Lowest This Year

Dairy product prices fell in the latest GlobalDairyTrade auction, hitting the lowest level in the 2015 auctions so far, as prices for milk powder and butter slid amid concern about the outlook for commodities. More>>

ALSO:

Houston, We Have An Air Route: Air New Zealand To Fly Direct To The Heart Of Texas

Air New Zealand will fly its completely refitted Boeing 777-200 aircraft between Auckland and Houston up to five times a week opening up the state of Texas as well as popular nearby tourist states such as Louisiana and Florida. More>>

ALSO:

Scoop Business: Reserve Bank’s Spencer Calls On Govt To Rethink Housing Tax

The Reserve Bank has urged the government to take another look at a capital gains tax on investment in housing, allow increased high-density development and cut red tape for planning consents to address an over-heated Auckland property market. More>>

ALSO:

Get More From Scoop

 
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news