Navigation Links
Using new technique, scientists uncover a delicate magnetic balance for superconductivity
Date:10/19/2011

A new imaging technology is giving scientists unprecedented views of the processes that affect the flow of electrons through materials.

By modifying a familiar tool in nanoscience the Scanning Tunneling Microscope a team at Cornell University's Laboratory for Atomic and Solid State Physics have been able to visualize what happens when they change the electronic structure of a "heavy fermion" compound made of uranium, ruthenium and silicon. What they learned sheds light on superconductivity the movement of electrons without resistance which typically occurs at extremely low temperatures and that researchers hope one day to achieve at something close to room temperature, which would revolutionize electronics.

The researchers found that, while at higher-temperatures magnetism is detrimental to superconductivity, at low temperatures in heavy fermion materials, magnetic atoms are a necessity. "We found that removing the magnetic atoms proved detrimental to the flow [of electrons]," said researcher Mohammad Hamidian. This is important, Hamidian explains, because "if we can resolve how superconductivity can co-exist with magnetism, then we have a whole new understanding of superconductivity, which could be applied toward creating high-temperature superconductors. In fact, magnetism at the atomic scale could become a new tuning parameter of how you can change the behavior of new superconducting materials that we make."

To make these findings, the researchers modified a scanning microscope that lets you pull or push electrons into a material. With the modification, the microscope could also measure how hard it was to push and pull a development that Hamidian explains is also significant. "By doing this, we actually learn a lot about the material's electronic structure. Then by mapping that structure out over a wide area, we can start seeing variations in those electronic states, which come about for quantum-mechanical reasons. Our newest advance, crucial to this paper, was the ability to see at each atom the strength of the interactions that make the electrons 'heavy.'"


'/>"/>

Contact: James Cohen
cohen@kavlifoundation.org
The Kavli Foundation
Source:Eurekalert

Related biology technology :

1. Using lasers to vaporize tissue at multiple points simultaneously
2. 1st Pediatric Total Artificial Heart Patient Discharged Home Using Freedom® Portable Driver
3. Using Public Relations to Launch, Grow, and Extend Pharmaceutical and Biotech Brands
4. Jennerex Reports Positive Mechanistic Proof-of-Concept Clinical Trial Results Using JX-594 to Treat Metastatic Melanoma
5. Put the brakes on using your brain power
6. A new discovery paves the way for using super strong nanostructured metals in cars
7. Sangamo BioSciences Announces Efficient Generation of Transgenic Pigs Using Zinc Finger Nuclease (ZFN) Technology
8. Medical College of Wisconsin and Cellular Dynamics Awarded NHLBI Grant Using Human Induced Pluripotent Stem Cells
9. Analysis Provides New Insights Into Use of SYMLIN® in Patients With Type 1 Diabetes Using Insulin Pumps
10. BioNeutral Starts Commercial Deployment of Its Ygiene 206 Sterilant and Ogiene Products Within Port Authority Facilities Using T.U.C.S. Cleaning Services
11. ACT Announces First Patients Enrolled in Two Clinical Trials Using Embryonic Stem Cells to Treat Stargardts Disease and Dry Age-Related Macular Degeneration
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/23/2017)... ... February 22, 2017 , ... ... , have been named Fellows of the Society this year, the Fellows Committee ... the multidisciplinary fields of optics, photonics, and imaging as well as their service ...
(Date:2/22/2017)... -- Scientists propose in Nature blocking a ... and maybe other lysosomal storage diseases as a possible ... therapies. An international research team led by ... included investigators from the University of Lübeck in ... The study was conducted in mouse models of lysosomal ...
(Date:2/22/2017)... Dublin - Research ... Crop Protection (Bio-Pesticide) Market-By Type, By Application, By End User, By ... offering. ... Biological Crop Protection Market is forecasted to grow at a CAGR ... biopesticide or biological crop protection market is driven by the surging ...
(Date:2/22/2017)... SAN DIEGO , Feb. 22, 2017 /PRNewswire/ ... today expansion of its translational research program using ... establishment of laboratory facilities in San Diego.  The ... Diego BioLabs facility, a biotechnology incubator sponsored by ... In November 2016, the Company obtained ...
Breaking Biology Technology:
(Date:2/3/2017)...  Texas Biomedical Research Institute announced that its Board of ... as the Institute,s new President and CEO. Dr. Schlesinger will ... He is currently the Chair of the Department of Microbial ... Interface Biology at Ohio State University. "We are ... CEO of Texas Biomed," said Dr. James O. Rubin ...
(Date:2/1/2017)... February 1, 2017 IDTechEx Research, a leading ... technology, announces the availability of a new report, Sensors for ... Continue Reading ... ... collaborative robots. Source: IDTechEx Report "Sensors for Robotics: Technologies, Markets and ...
(Date:1/25/2017)... The Elements of Enterprise Information Security ... of a comprehensive set of business processes and ... identities and providing a secured and documented access ... number of programs opted by enterprises to maintain ... processes and changing policies. However, there are some ...
Breaking Biology News(10 mins):