Navigation Links
Using new technique, scientists uncover a delicate magnetic balance for superconductivity

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
The Kavli Foundation

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:
(Date:10/13/2015)... , Oct. 13, 2015  Generex Biotechnology Corporation ( ... into a non-binding Letter of Intent (LOI) with MediTemp Ltd. ... developed a proprietary cooling technology designed to improve sperm quality ... the United States and three million men in ... and 44 diagnosed as infertile.  For 42% of those men, ...
(Date:10/13/2015)... ... , ... Proove Biosciences, a commercial and research leader ... Keck Medicine of the University of Southern California (USC) Pain Center to ... Research Clinical Objectives Linking Genotypic and Phenotypic Association with Pain Outcomes) is one ...
(Date:10/12/2015)... (PRWEB) , ... October 12, 2015 , ... Spirax Sarco, ... the release of the CSM-C 600 compact clean steam generator . This ... that meets the requirements of HTM2031, HTM2010, and EN285 standards. The CMS-C 600 ...
(Date:10/12/2015)... -- cell surface marker detection market is ... a new report by Grand View Research, Inc. This growth ... oncology diseases and other cell-associated disorders. --> cell ... 6.49 billion by 2022, according to a new report by ... attributed to rise in incidence of oncology diseases and other ...
Breaking Biology Technology:
(Date:10/9/2015)... ) ... "Samsung Galaxy S6 Fingerprint Sensor - Reverse ... --> ) has announced ... S6 Fingerprint Sensor - Reverse Costing Analysis" ... Research and Markets ( ) ...
(Date:10/8/2015)... , October 8, 2015 ... the "Company"), a biometric authentication company focused on ... the Wocket® smart wallet announces that revenues for ... approximately $410,000 compared with $113,00 for the three ... 9 months ended September 30, 2015 were approximately ...
(Date:10/6/2015)... , Oct. 6, 2015 Track Group, Inc. ... that it has signed a contract with the Virginia ... the full range of sentences under the Department,s oversight. ... the Americas. "This contract with the Virginia DOC will ... US and advances our position as a trusted leader ...
Breaking Biology News(10 mins):