Nanotechnology Now







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

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Possible Futures

GS7 Graphene Sensor maybe Solution in Fight Against Cancer January 25th, 2015

Nanotechnology in Energy Applications Market Research Report 2014-2018: Radiant Insights, Inc January 15th, 2015

'Mind the gap' between atomically thin materials December 23rd, 2014

A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014

Academic/Education

Rice's Naomi Halas to direct Smalley Institute: Optics pioneer will lead Rice's multidisciplinary science institute January 15th, 2015

SUNY Board Appoints Dr. Alain Kaloyeros as Founding President of SUNY Polytechnic Institute January 13th, 2015

CNSE's Smart System Technology & Commercialization Center Successfully Recertifies as ISO 9001:2008 January 12th, 2015

SUNY Poly Now Accepting Applications to the Colleges of Nanoscale Science and Engineering for Fall 2015: Full Scholarships Available to Incoming CNSE Students January 7th, 2015

Announcements

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Quantum nanoscience

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Creating new materials with quantum effects for electronics January 29th, 2015

Nanoscale Mirrored Cavities Amplify, Connect Quantum Memories: Advance could lead to quantum computing and the secure transfer of information over long-distance fiber optic networks January 28th, 2015

New pathway to valleytronics January 27th, 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







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE