It appears you have not yet registered with our community. To register please click here...

 
Go Back [M] > Madshrimps > WebNews
New memory stores light New memory stores light
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read


New memory stores light
Reply
 
Thread Tools
Old 13th June 2013, 13:45   #1
[M] Reviewer
 
Stefan Mileschin's Avatar
 
Join Date: May 2010
Location: Romania
Posts: 40,431
Stefan Mileschin Freshly Registered
Default New memory stores light

Popular science magazine Nature is talking about a new prototype storage system that is faster than light and uses less power.

Ramamoorthy Ramesh, a materials scientist at the University of California, Berkeley, and Junling Wang, a specialist in oxide materials at the Nanyang Technological University in Singapore have emerged from their smoke filled labs with a storage device which combines speed, endurance and low power consumption by uniting electronic storage with a read-out based on the physics that powers solar panels.

The machine is based around bismuth ferrite which uses binary digits, or bits, as one of two polarisation states, and can switch between these states when a voltage is applied.

This Ferroelectric RAM has been around for a while but not found widespread use. One problem is that the electrical signal used to read out a bit erases it, so the data must be rewritten every time.

What Ramesh and Wang have done is use another property of bismuth ferrite to read these memory arrays in a nondestructive way.

Earlier research in 2009 demonstrated that bismuth ferrite has a photovoltaic response to visible light. So if you hit it with light a voltage is created Shining light on the material doesn't change its polarization, and so does not erase the data stored in it.

Ramesh and Wang grew films of bismuth ferrite on top of a metal oxide, then etched it into four strips, created electrodes and uses these to polarize the cells, then shone light onto the whole array and found that it produced two types of voltage readings — one negative and one positive.

It took 10 nanoseconds to write to and read the cells, and recording the data requires about three volts. This is 10,000 times faster than flash which needs 15 volts to record.

http://news.techeye.net/science/new-memory-stores-light
Stefan Mileschin is online now   Reply With Quote
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Best Buy stores go out of business without telling employees Stefan Mileschin WebNews 0 4th February 2013 09:03
RHA Launching New Headphones in Apple Stores Stefan Mileschin WebNews 0 13th September 2012 07:13
Windows 8 Might Not Be Sold in Stores Stefan Mileschin WebNews 0 16th July 2012 08:12
Samsung Galaxy S III for AT&T now in stores Stefan Mileschin WebNews 0 9th July 2012 14:06
HTC EVO 4G LTE hitting Sprint stores on June 2nd Stefan Mileschin WebNews 0 1st June 2012 07:35
Best Buy Closing All UK Stores Stefan Mileschin WebNews 0 8th November 2011 06:55
Intel 40Gb X25-V Value SSD Spotted in Stores for €100 jmke WebNews 0 6th January 2010 15:29
$200 Linux PCs Discontinued at Wal-Mart Stores jmke WebNews 0 12th March 2008 11:17
AMD surpasses Intel in U.S. retail stores Sidney WebNews 1 8th November 2005 19:39
Microsoft’s Xbox 360 Demonstrated in Stores jmke WebNews 0 25th October 2005 18:32

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


All times are GMT +1. The time now is 08:07.


Powered by vBulletin® - Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO