Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

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

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Iranian Scientists Use Waste Cotton Fibers to Produce Cellulose Nanoparticles July 29th, 2014

FEI adds Phase Plate Technology and Titan Halo TEM to its Structural Biology Product Portfolio: New solutions provide the high-quality imaging and contrast necessary to analyze the 3D structure of molecules and molecular complexes July 28th, 2014

Production of Toxic Gas Sensor Based on Nanorods July 28th, 2014

Possible Futures

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Surface Characteristics Influence Cellular Growth on Semiconductor Material March 12th, 2014

Academic/Education

Haydale Announces Collaboration Agreement with Swansea University’s Welsh Centre for Printing and Coatings (WCPC) July 12th, 2014

STFC takes delivery of the 100th Hitachi Tabletop SEM in the UK July 3rd, 2014

Innovation Management and the Emergence of the Nanobiotechnology Industry July 1st, 2014

Albany NanoCollege Faculty Member Selected as Editor-in-Chief of the Prestigious Journal of Electronic Materials July 1st, 2014

Announcements

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Iranian Scientists Use Waste Cotton Fibers to Produce Cellulose Nanoparticles July 29th, 2014

FEI adds Phase Plate Technology and Titan Halo TEM to its Structural Biology Product Portfolio: New solutions provide the high-quality imaging and contrast necessary to analyze the 3D structure of molecules and molecular complexes July 28th, 2014

Production of Toxic Gas Sensor Based on Nanorods July 28th, 2014

Quantum nanoscience

Measuring the Smallest Magnets July 28th, 2014

Physicists Use Computer Models to Reveal Quantum Effects in Biological Oxygen Transport: The team solved a long-standing question by explaining why oxygen – and not deadly carbon monoxide – preferably binds to the proteins that transport it around the body. July 17th, 2014

Bending the rules: A UCSB postdoctoral scholar in physics discovers a counterintuitive phenomenon: the coexistence of superconductivity with dissipation June 29th, 2014

Singapore Researchers Use FEI Titan S/TEM to Link Plasmonics with Molecular Electronics: As described in the March 28 issue of Science, researchers discover quantum plasmonic tunneling – a phenomenon that may eventually lead to new, ultra-fast electrical circuits June 24th, 2014

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 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE