Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > New magnetic tuning method enhances data storage

A magnetic crystal sits on the head of a dime for scale. Scientists exploit the randomness of the magnetic field in the crystal at the molecular level to control the properties of the magnet as a whole. The chip underneath the crystal is a magnetic sensor.
A magnetic crystal sits on the head of a dime for scale. Scientists exploit the randomness of the magnetic field in the crystal at the molecular level to control the properties of the magnet as a whole. The chip underneath the crystal is a magnetic sensor.

Abstract:
Researchers in Chicago and London have developed a method for controlling the properties of magnets that could be used to improve the storage capacity of next-generation computer hard drives.

New magnetic tuning method enhances data storage

Chicago, IL | Posted on February 18th, 2010

Magnets that can readily switch their polarity are widely used in the computer industry for data storage, but they present an engineering challenge: A magnet's polarity must be easily switched when writing data to memory, but be difficult to switch when storing or reading it.

These conflicting requirements are typically met by heating and softening the magnet for saving data, then cooling and hardening the magnet for storage and reading. But now the University of Chicago's Daniel Silevitch and Thomas Rosenbaum and Gabriel Aeppli of the London Centre for Nanotechnology (a joint enterprise of University and Imperial Colleges London) have filed a patent on a method that avoids this complex heating operation. As the trio report in the Proceedings of the National Academy of Sciences, they can tune the softness of the magnet with the application of a small external magnetic field, which allows writing, storage and readout at a fixed temperature.

Citation: "Switchable hardening of a ferromagnet at fixed temperature," by D.M. Silevitch, G. Aeppli and T.F. Rosenbaum, Proceedings of the National Academy of Sciences Early Edition, Jan. 29, 2010.

Funding: U.S. Department of Energy and the United Kingdom Engineering and Physical Sciences Research Council.

####

About University of Chicago
As the nation’s celebrated teacher of teachers, we place particular emphasis at the graduate level on the training of students for careers in academia and research. Committed to scholarship of the highest order, our faculty has made major contributions to existing bodies of knowledge and to the creation of new fields of study. Chicago scholars seek to break down artificial disciplinary barriers and frequently explore research and coursework outside their selected fields. We have long thrived in an atmosphere of free and open inquiry, which has led to classic studies of literary criticism and urban sociology, the development of ecology, and the study of religions as an academic field.

For more information, please click here

Contacts:
Steve Koppes
773.702.8366

Copyright © University of Chicago

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Particle Works creates range of high performance quantum dots February 23rd, 2017

Govt.-Legislation/Regulation/Funding/Policy

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Molecular phenomenon discovered by advanced NMR facility: Cutting edge technology has shown a molecule self-assembling into different forms when passing between solution state to solid state, and back again - a curious phenomenon in science - says research by the University of Wa February 22nd, 2017

'Lossless' metamaterial could boost efficiency of lasers and other light-based devices February 20th, 2017

Possible Futures

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

EmTech Asia breaks new barriers with potential applications of space exploration with NASA and MIT February 22nd, 2017

Tiny nanoclusters could solve big problems for lithium-ion batteries February 21st, 2017

Academic/Education

Nominations Invited for $250,000 Kabiller Prize in Nanoscience: Major international prize recognizes a visionary nanotechnology researcher February 20th, 2017

Oxford Nanoimaging report on how the Nanoimager, a desktop microscope delivering single molecule, super-resolution performance, is being applied at the MRC Centre for Molecular Bacteriology & Infection November 22nd, 2016

The University of Applied Sciences in Upper Austria uses Deben tensile stages as an integral part of their computed tomography research and testing facility October 18th, 2016

Enterprise In Space Partners with Sketchfab and 3D Hubs for NewSpace Education October 13th, 2016

Memory Technology

Strem Chemicals and Dotz Nano Ltd. Sign Distribution Agreement for Graphene Quantum Dots Collaboration February 21st, 2017

Research opens door to smaller, cheaper, more agile communications tech February 16th, 2017

Scientists determine precise 3-D location, identity of all 23,000 atoms in a nanoparticle: Berkeley Lab researchers help to map iron-platinum particle in unprecedented detail February 6th, 2017

Investigations of the skyrmion Hall effect reveal surprising results: One step further towards the application of skyrmions in spintronic devices December 28th, 2016

Announcements

New nano approach could cut dose of leading HIV treatment in half February 24th, 2017

Atom-scale oxidation mechanism of nanoparticles helps develop anti-corrosion materials February 24th, 2017

Atomic force imaging used to study nematodes: KFU bionanotechnology lab (head - Dr. Rawil Fakhrullin) has obtained 3-D images of nematodes' cuticles February 23rd, 2017

Particle Works creates range of high performance quantum dots February 23rd, 2017

Patents/IP/Tech Transfer/Licensing

Keystone Nano Announces The US FDA Has Awarded Orphan Drug Designation For Ceramides For The Treatment Of Liver Cancer November 8th, 2016

Leti to Tackle Tomorrow's Research Strategies with Stanford University’s SystemX Alliance: French R&D Center Is the First Research Institute to Join the Collaboration and Provides Bridges Between Academia and Industry, Leveraging Alliance’s Potential October 4th, 2016

Picosun patents ALD nanolaminate to prevent electronics from overheating September 28th, 2016

NIST Patents Single-Photon Detector for Potential Encryption and Sensing Apps September 16th, 2016

Alliances/Trade associations/Partnerships/Distributorships

Strem Chemicals and Dotz Nano Ltd. Sign Distribution Agreement for Graphene Quantum Dots Collaboration February 21st, 2017

Leti Coordinating Project to Adapt Obstacle-Detection Technology Used in Autonomous Cars for Portable and Wearable Systems: INSPEX to Combine Knowhow of Nine European Organizations to Create Portable and Wearable Spatial-Exploration Systems February 2nd, 2017

GLOBALFOUNDRIES Expands Partner Program to Speed Time-to-Market of FDX™ Solutions: Increased support affirms FDXcelerator™ Program’s vital role in promoting broader deployment of GLOBALFOUNDRIES’ FDX™ portfolio December 15th, 2016

Infrared instrumentation leader secures exclusive use of Vantablack coating December 5th, 2016

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project