Navigation Links
UMD scientists make magnetic new graphene discovery
Date:4/15/2011

make the Kondo effect appear only at extremely low temperatures," he said.

The team measured the characteristic temperature for the Kondo effect in graphene with vacancies to be as high as 90 Kelvin, which is comparable to that seen in metals with very high electron densities. Moreover the Kondo temperature can be tuned by the voltage on an electrical gate, an effect not seen in metals. They theorize that the same unusual properties of that result in graphene's electrons acting as if they have no mass also make them interact very strongly with certain kinds of impurities, such as vacancies, leading to a strong Kondo effect at a relatively high temperature.

Fuhrer thinks that if vacancies in graphene could be arranged in just the right way, ferromagnetism could result. "Individual magnetic moments can be coupled together through the Kondo effect, forcing them all to line up in the same direction," he said.

"The result would be a ferromagnet, like iron, but instead made only of carbon. Magnetism in graphene could lead to new types of nanoscale sensors of magnetic fields. And, when coupled with graphene's tremendous electrical properties, magnetism in graphene could also have interesting applications in the area of spintronics, which uses the magnetic moment of the electron, instead of its electric charge, to represent the information in a computer.

"This opens the possibility of 'defect engineering' in graphene - plucking out atoms in the right places to design the magnetic properties you want," said Fuhrer.


'/>"/>

Contact: Lee Tune
ltune@umd.edu
301-405-4679
University of Maryland
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Clemson scientists put a (nano) spring in their step
2. City of Hope Helps KGI Launch New Management Training Program for Scientists
3. University of Pennsylvania scientists move optical computing closer to reality
4. Scientists grow nanonets able to snare added energy transfer
5. The National Cancer Institute Joins the Global Community of Scientists Now Using BIOMARKERcenter From Thomson Reuters
6. Scientists peel away the mystery behind golds catalytic prowess
7. SACHEM Launches 2-D HPLC e-Learning Program : New e-Learning Program Teaches Scientists How to Better Analyze and Prove Product Purity Through Greater Sensitivity and Precision in Identification of Trace Components
8. Vermillion and Stanford Scientists Receive Best Research Award From the PAD Coalition
9. Brewing better beer: Scientists determine the genomic origins of lager yeasts
10. Tengion Scientists Publish Positive Preclinical Findings With Neo-Organ Demonstrating Long-term Durability and Growth With Skeletal Maturation
11. CU scientists create worlds thinnest balloon -- just one atom thick
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
UMD scientists make magnetic new graphene discovery
(Date:7/1/2015)...  UCB, a multinational biopharmaceutical company, and Genpact ... designing, transforming, and running intelligent business operations, have ... their close collaboration in driving transformation that achieved ... (GBS) finance organization. The Aecus Innovation ... together effectively to embrace the innovative promise of ...
(Date:6/30/2015)... , June 30, 2015 /PRNewswire/ - Resverlogix ... of common shares of Resverlogix have approved the ... Eastern Capital Limited of 5,600,000 units at a ... Placement"), each unit being comprised of one common ... aggregate proceeds of approximately CAD$15 million; and (ii) ...
(Date:6/30/2015)... -- Juniper Pharmaceuticals, Inc. (Nasdaq: JNP ), a specialty ... unmet medical needs in women,s health, today announced ... at the Cantor Fitzgerald Inaugural Healthcare Conference as ... PM EDTLocation: , Le Parker Meridien Hotel, New ... under  ,Investor, or  click here The ...
(Date:6/30/2015)... WA (PRWEB) , ... June 30, 2015 , ... ... a hydrophilic filter that does not sacrifice selectivity to achieve faster flow rates ... combines extremely fine pores with significant open space to allow easy liquid flow ...
Breaking Biology Technology:UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 2UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 3UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 4UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 5Resverlogix Corp. Shareholders Approve Matters Relating to Licensing and Equity Arrangement 2Resverlogix Corp. Shareholders Approve Matters Relating to Licensing and Equity Arrangement 3Juniper Pharmaceuticals to Present at Cantor Fitzgerald Inaugural Healthcare Conference on July 8, 2015 2New Nanofiber Membrane Provides Fast, Efficient Filtration 2
... run. Like a thief across a neighbor's yard. Take the money and ... run. Cause you found out that it wasn't hard to take the ... words and music by Graham Nash , 1975. , ,It ... top spot - sent packing with a tractor trailer load of severance ...
... interconnected vision for the University of Wisconsin System , ... technology. , , Meachen Meachen, associate vice president ... students at the University of Wisconsin-Superior someday signing ... university, UW-Madison . , ,And why not? Through the ...
... Wis. - Higher operating expenses offset strong quarterly revenue ... rich media communications technology, reported a net loss of $1.4 ... of fiscal year 2007. , ,The quarterly net loss ... per share net loss in the same quarter of 2006. ...
Cached Biology Technology:CEOs Gone Wild? Risks and rewards in the executive suite 2CEOs Gone Wild? Risks and rewards in the executive suite 3CEOs Gone Wild? Risks and rewards in the executive suite 4CEOs Gone Wild? Risks and rewards in the executive suite 5CEOs Gone Wild? Risks and rewards in the executive suite 6CIO Leadership Series: Ed Meachen, University of Wisconsin System 2CIO Leadership Series: Ed Meachen, University of Wisconsin System 3CIO Leadership Series: Ed Meachen, University of Wisconsin System 4CIO Leadership Series: Ed Meachen, University of Wisconsin System 5
(Date:6/29/2015)... 2015 Research and Markets( ... "Latin America Biomedical Sensors Market - Growth, Trends & ... The Latin America Biomedical Sensors market is estimated at ... over the period 2014-2020 The near future ... genetic formulation of each individual. These sensors can be ...
(Date:6/24/2015)... June 24, 2015 The biologics safety testing ... drivers for the market include growth of the pharmaceutical ... drug launches. Over the years, the number of drug ... and 2010, the FDA approved 225 drug applications and ... Europe accounted for 3,822 of ...
(Date:6/23/2015)... , June 23, 2015   MedNet ... that supports the entire spectrum of clinical research, ... ™ , the company,s intuitive, flexible ... awarded a Silver 2015 Stevie® Award by the ... Products & Services Website category.  The American Business ...
Breaking Biology News(10 mins):Latin America Biomedical Sensors Market Report 2015-2020 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4MedNet Solutions' iMedNet eClinical Wins Silver Stevie Award 2
... are primary producers of ammonia in Houston,s atmosphere, and cars ... according to a new study by researchers at Rice University ... air quality draws minimal oversight from the Environmental Protection Agency ... it means to life in and around the metropolis. ...
... N.Y. DNA and protein sequencing have forever ... of these complex biomolecules has revolutionized drug development, ... evolution and development. But, one major molecule in ... biopolymers. Today, for the first time ...
... A tiny piece of a critical receptor that fuels the ... discovered by University at Buffalo scientists as a promising new ... on the NMDA (N-methyl-D-aspartate) receptor is being published online Oct. ... time that this site has been shown to be useful ...
Cached Biology News:Ammonia gets overdue overview 2Ammonia gets overdue overview 3Uncharted territory: Scientists sequence the first carbohydrate biopolymer 2Uncharted territory: Scientists sequence the first carbohydrate biopolymer 3New drug target for Alzheimer's, stroke is discovered by University at Buffalo scientists 2
Shake 'n' Stack Oven - New Model (includes 10 bottle capacity rotisserie, adjustable feet, drip tray, manual PLUS Shaker Platform)...
... Polymerase I from E. coli ... The enzyme also contains both ... 5'?3' exonuclease activity enables the ... gaps in the DNA as ...
DNase I (Deoxyribonuclease I) digests single- and double-stranded DNA to oligodeoxyribonucleotides. Ribonuclease activity has been reduced to non-detectable levels....
... Description: Topoisomerase I relaxes both positively and negatively ... of phosphodiester bonds (1,2) . Relaxing supercoiled DNA ... by a single nucleotide pair by gel electrophoresis ... absence of Mn 2+ and can be ...
Biology Products: