Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Researchers find way for superconductivity and magnetism to coexist

Schematic showing an array of tubes containing lithium atoms. The system is probed by imaging the shadow cast by this ensemble. Nature Supplementary Information
Schematic showing an array of tubes containing lithium atoms. The system is probed by imaging the shadow cast by this ensemble. Nature Supplementary Information

Abstract:
Dogs and cats, Harry Potter and Voldemort, superconductivity and magnetism -- they tend not to coexist. Superconductivity, the flow of electrons without resistance, is typically suppressed by magnetic fields, which disrupt the intricately choreographed electron motion.

By Anne Ju

Researchers find way for superconductivity and magnetism to coexist

Ithaca, NY | Posted on October 7th, 2010

Theoretical physicists at Cornell, working with experimental physicists at Rice University, have carefully engineered a system in which these conflicting properties are believed to put aside their differences.

Publishing online Sept. 30 in the journal Nature, the researchers made and tested an ultra-thin, ultra-cold analogue of a magnetic superconductor -- a sort of one-dimensional wire filled with lithium atoms.

The researchers placed the lithium atoms into bundles of narrow tubes, each of which was only one atom thick. In order to see superconducting properties, they cooled the tubes to about 10 nanokelvin (less than one-hundred-millionth of a degree above absolute zero).

Inside the tubes, the atoms could only bounce off each other in a straight line along the tube. This kinetic restriction stabilizes a "spin density wave" wherein the magnetism is periodically modulated along the tube, on an atomic scale. Superconductivity predominantly builds up in the regions where the magnetism is weakest.

The Cornell theory team, which included assistant professor Erich Mueller and graduate student Stefan Baur, analyzed the experimental data and produced microscopic models of the system. Their principal mathematical technique, the Bethe-Ansatz, was invented by Cornell physicist and Nobel laureate Hans Bethe in the 1930s. Mueller describes the technique as "one of Bethe's greatest legacies."

The work was supported by the Defense Advanced Research Projects Agency's Optical Lattice Emulator program, which seeks to understand and explore the quantum mechanical properties of materials through experiments on atomic clouds.

####

For more information, please click here

Contacts:
Media Contact:
Joe Schwartz
(607) 254-6235


Cornell Chronicle:
Anne Ju
(607) 255-9735

Copyright © Cornell University

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

Nanoparticles Give Antibacterial Properties to Machine-Woven Carpets August 4th, 2015

Nanoparticles used to breach mucus barrier in lungs: Proof-of-concept study conducted in mice a key step toward better treatments for lung diseases August 3rd, 2015

Promising Step Taken in Iran towards Treatment of Spinal Cord Injury August 3rd, 2015

Diagnosis of Salmonella Bacterium-Caused Food Poisoning by Biosensors August 3rd, 2015

Possible Futures

Nanofiltration Membrane Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Nanozirconia Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Self-Healing Nano Anti-rust Coatings Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Nano Spray Instrument Market 2015 - Global Industry Survey, Analysis, Size, Share, Outlook and Forecast to 2020 July 31st, 2015

Academic/Education

Pakistani Students Who Survived Terror Attack to Attend Weeklong “NanoDiscovery Institute” at SUNY Poly CNSE in Albany July 29th, 2015

Deben reports on the use of their CT500 in the X-ray microtomography laboratory at La Trobe University, Melbourne, Australia July 22nd, 2015

JPK reports on the use of SPM in the Messersmith Group at UC Berkeley looking at biologically inspired polymer adhesives. July 21st, 2015

Renishaw adds Raman analysis to Scanning Electron Microscopy at the University of Sydney, Australia July 9th, 2015

Announcements

Nanoparticles Give Antibacterial Properties to Machine-Woven Carpets August 4th, 2015

Nanoparticles used to breach mucus barrier in lungs: Proof-of-concept study conducted in mice a key step toward better treatments for lung diseases August 3rd, 2015

Promising Step Taken in Iran towards Treatment of Spinal Cord Injury August 3rd, 2015

Diagnosis of Salmonella Bacterium-Caused Food Poisoning by Biosensors August 3rd, 2015

Quantum nanoscience

Quantum states in a nano-object manipulated using a mechanical system August 3rd, 2015

Solid state physics: Quantum matter stuck in unrest August 1st, 2015

Theoretical Physicists at Freie Universität Berlin Develop New Insights into Interface between Classical and Quantum Worlds July 31st, 2015

Detecting small metallic contaminants in food via magnetization: A practical metallic-contaminant detecting system using three high-Tc RF superconducting quantum interference devices (SQUIDs) July 29th, 2015

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