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

COLLEGE PARK, Md. -- University of Maryland researchers have discovered a way to control magnetic properties of graphene that could lead to powerful new applications in magnetic storage and magnetic random access memory.

The finding by a team of Maryland researchers, led by Physics Professor Michael S. Fuhrer of the UMD Center for Nanophysics and Advanced Materials is the latest of many amazing properties discovered for graphene.

A honeycomb sheet of carbon atoms just one atom thick, graphene is the basic constituent of graphite. Some 200 times stronger than steel, it conducts electricity at room temperature better than any other known material (a 2008 discovery by Fuhrer, et. al). Graphene is widely seen as having great, perhaps even revolutionary, potential for nanotechnology applications. The 2010 Nobel Prize in physics was awarded to scientists Konstantin Novoselov and Andre Geim for their 2004 discovery of how to make graphene.

In their new graphene discovery, Fuhrer and his University of Maryland colleagues have found that missing atoms in graphene, called vacancies, act as tiny magnets -- they have a "magnetic moment." Moreover, these magnetic moments interact strongly with the electrons in graphene which carry electrical currents, giving rise to a significant extra electrical resistance at low temperature, known as the Kondo effect. The results appear in the paper "Tunable Kondo effect in graphene with defects" published this month in Nature Physics.

The Kondo effect is typically associated with adding tiny amounts of magnetic metal atoms, such as iron or nickel, to a non-magnetic metal, such as gold or copper. Finding the Kondo effect in graphene with vacancies was surprising for two reasons, according to Fuhrer.

"First, we were studying a system of nothing but carbon, without adding any traditionally magnetic impurities. Second, graphene has a very small electron density, which would be expected to
'/>"/>

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:12/19/2014)... Dec. 19, 2014  Roche (SIX: RO, ROG; OTCQX: ... Inc. (Bina), a privately held company based in ... Bina provides a big data platform for centralized ... data. Bina,s proprietary on-market Genomic Management Solution, Bina-GMS ... to perform fast and scalable analyses to maximize ...
(Date:12/19/2014)... Springs, FL (PRWEB) December 18, 2014 ... of the nation’s leading specialty pharmacies, has an ... serve as clinical pharmacy consultants for prescriber offices ... therapy expertise. , “We have a variety ... therapies. For example, those specializing in hepatitis C ...
(Date:12/19/2014)... Reports from CDC show approximately ... one or more chronic health conditions - including cardiovascular ... some of these diseases, but may not eliminate the ... While implanted nerve stimulation devices today offer relief, they ... can induce side effects. , To eliminate the ...
(Date:12/19/2014)... (PRWEB) December 18, 2014 With only ... time special on Sartorius Biohit products . The ... mLINE pipettes, Picus Electronic Pipette Trade-in Program, and free ... and Safety officers around the world. They are ideal ... Other features include:, ,     Full volume range ...
Breaking Biology Technology:Roche acquires Bina Technologies and enters the genomic informatics market 2Roche acquires Bina Technologies and enters the genomic informatics market 3BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 2BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 3Draper Wins GSK Funding for Smaller, Smarter Implantable Devices 2Major Pipette Distributor Pipette.com Announces Sartorius Year End Specials 2
... locations on an Internet search page: top, middle and down. ... and other times its 100 feet long. Today, e-commerce is ... successful, only then will it will float on the surface ... like a submarine, it will stay caught in some mysterious ...
... Ohio State University's new "living laboratory" of teaching ... developed by Madison-based Sonic Foundry, Inc. , ... presentations, the company announced Monday. , ,The laboratory, ... Ohio State with data for making informed investment ...
... M. Mitchell Waldrop has put his Ph.D. in theoretical physics ... now as a public affairs officer for the National ... science writer in residence for the week, he ... Science's (and Journalism's) Secret Weapon, at which he discussed the ...
Cached Biology Technology:Does your web site have visibility? 2Does your web site have visibility? 3Ohio State's educational tech lab to use Sonic Foundry system 2NSF officer speaks on the future of journalism and science 2NSF officer speaks on the future of journalism and science 3
(Date:12/11/2014)... DUBLIN , Dec. 09, 2014 Research ... http://photos.prnewswire.com/prnh/20130307/600769 ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) ... Market in India 2015-2019" report to their ... in this market is the adoption of multimodal ... one characteristic of an individual for verification and ...
(Date:12/11/2014)... Minn. , Dec. 10, 2014  Data ... physiologic monitoring, has released a new series of ... of preclinical toxicology researchers. M series, part of ... toxicologists collect the best possible physiologic data when ... Adding functional endpoints to toxicology studies has ...
(Date:12/10/2014)... 2014  Valencell, a leader in performance biometric data ... demand from its licensees for highly accurate, clinically validated ... solely coming from fitness and health sectors, but first ... wearable is only as useful as the biometric data ... driver in long-term mass consumer adoption of wearable products," ...
Breaking Biology News(10 mins):Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2New telemetry implants expected to change how large animal toxicology studies are conducted 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... University is subjecting chunks of rock to hellish conditions in ... change. By exposing a handful of rocks ... new data about the large-scale underground storage of carbon dioxide, ... "About 60 percent of the world,s carbon ...
... , DURHAM, N.C. -- Tracking individual cells within the ... Duke University researchers new insights into the causes of ... be treated now by lung transplantation. , IPF fills ... scar tissue, progressively restricting breathing. The Duke University Medical ...
... to information about biodiversity is of crucial importance to ... change research and education. "Non-Commercial" restrictions on the reuse ... these problems, says a review paper published in the ... Halting the loss of biodiversity demands that information on ...
Cached Biology News:AGU meeting: Stanford scientists subject rocks to hellish conditions to combat global warming 2AGU meeting: Stanford scientists subject rocks to hellish conditions to combat global warming 3AGU meeting: Stanford scientists subject rocks to hellish conditions to combat global warming 4New insights come from tracing cells that irreversibly scar lungs 2Creative Commons 'non-commercial' licenses impede the re-use of biodiversity information 2
Mouse monoclonal antibody to ANAPC2 - anaphase promoting complex subunit 2...
...
... Drummond Scientific has a long and ... microinjection apparatus. Several years ago we ... displacement microdispenser was being modified to ... unit by redesigning the microdispenser to ...
The Programmable MP-3500P-F Power Supply can be applied for any Microfluidic application....
Biology Products: