Navigation Links
Study of electron orbits in multilayer graphene finds unexpected energy gaps
Date:8/10/2010

Researchers have taken one more step toward understanding the unique and often unexpected properties of graphene, a two-dimensional carbon material that has attracted interest because of its potential applications in future generations of electronic devices.

In the Aug. 8 advance online edition of the journal Nature Physics, researchers from the Georgia Institute of Technology and the National Institute of Standards and Technology (NIST) describe for the first time how the orbits of electrons are distributed spatially by magnetic fields applied to layers of epitaxial graphene.

The research team also found that these electron orbits can interact with the substrate on which the graphene is grown, creating energy gaps that affect how electron waves move through the multilayer material. These energy gaps could have implications for the designers of certain graphene-based electronic devices.

"The regular pattern of energy gaps in the graphene surface creates regions where electron transport is not allowed," said Phillip N. First, a professor in the Georgia Tech School of Physics and one of the paper's co-authors. "Electron waves would have to go around these regions, requiring new patterns of electron wave interference. Understanding such interference will be important for bi-layer graphene devices that have been proposed, and may be important for other lattice-matched substrates used to support graphene and graphene devices."

In a magnetic field, an electron moves in a circular trajectory known as a cyclotron orbit whose radius depends on the size of the magnetic field and the energy of electron. For a constant magnetic field, that's a little like rolling a marble around in a large bowl, First said.

"At high energy, the marble orbits high in the bowl, while for lower energies, the orbit size is smaller and lower in the bowl," he explained. "The cyclotron orbits in graphene also depend on the electron en
'/>"/>

Contact: John Toon
jtoon@gatech.edu
404-894-6986
Georgia Institute of Technology Research News
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Terrorist de-radicalization shows promise, comprehensive study finds
2. Vicept Therapeutics Announces Positive Clinical Study Results of V-101 for the Treatment of the Erythema of Rosacea
3. New Study Demonstrates Clinical Validity of EarlyCDT-Lung™
4. YM BioSciences announces conclusion of Phase I dose-escalation and expansion of ongoing CYT387 Phase I/II clinical study
5. Aeterna Zentaris Announces NIH Grant for a Phase 1/2 Study in Advanced Prostate Cancer with AEZS-108
6. DAIICHI SANKYO EUROPE GmbH Selects DATATRAK eClinical™ for Pan-European Systolic Hypertension Study
7. New England Journal of Medicine Publishes Data from Pivotal Phase 3 PROVENGE IMPACT Study
8. Angiotech Pharmaceuticals and partner Athersys announce positive results from phase I study of MultiStem(R) in heart attack patients
9. Aegera Therapeutics Reports Survival Data from the Phase 1 Portion of its Phase 1-2 Study of AEG35156 in Combination with Sorafenib in Patients with Advanced Hepatocellular Carcinoma
10. Study measures single-molecule machines in action
11. Recent Study Reports Reveals that HGH May Aid Performance
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Study of electron orbits in multilayer graphene finds unexpected energy gaps
(Date:12/19/2014)... (PRWEB) December 18, 2014 ... nation’s leading specialty pharmacies, has an expanded team ... clinical pharmacy consultants for prescriber offices in their ... , “We have a variety of Regional ... example, those specializing in hepatitis C help prescribers ...
(Date:12/19/2014)... Boston, MA (PRWEB) December 18, 2014 ... software, announced the appointment of Siri Bryant as the ... the new Director of Core Implementations. These two new ... provide outstanding customer service by ensuring that iLab continues ... , “In the last four years, iLab has been ...
(Date:12/19/2014)... , Dec. 18, 2014 Egenix, Inc. is ... been elected Chairman of the Board, to succeed Donald ... CEO, but will continue as a member of the Board.  ... has added to the company over almost twenty years, the ... The Board of Directors has established a Search Committee to ...
(Date:12/17/2014)... (PRWEB) December 16, 2014 “Never ... at Philipps- Universität Marburg’s Department of Physics, advises ... in the newly released SPIE Women in ... be too shy to ask questions.” , In ... engineering, and mathematics) occupations ranging from university professor ...
Breaking Biology Technology:BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 2BioPlus Specialty Pharmacy Expands ‘Regional Pharmaceutical Care Liaison’ Team 3iLab Solutions Announces Two New Leadership Positions to Meet the Needs of Its Growing Customer Base 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3
... United States Catholic Bishops did not waver, and after ... . , , Wisconsin Right to Life , however, is ... stem cells from human embryos that does not destroy embryos, and ... , ,While various objections still remain, could the fact that this ...
... ilwaukee, Wis. - Teresa Esser sees incredible ... as the new director of the Milwaukee-based Silicon ... more of that opportunity realized. , ,While others are ... in Wisconsin, particularly in the tech sector, Esser sees ...
... - Ten years from now, when people sit in ... clarity, they probably won't think much about the people that ... hard at work as movie-goers take in the last reels ... situated in Hollywood. One of them is Jane Durment, CIO ...
Cached Biology Technology:There's a new dynamic in the stem cell debate 2There's a new dynamic in the stem cell debate 3There's a new dynamic in the stem cell debate 4New Silicon Pastures director envisions more home cooking for Wisconsin angels 2New Silicon Pastures director envisions more home cooking for Wisconsin angels 3New Silicon Pastures director envisions more home cooking for Wisconsin angels 4New Silicon Pastures director envisions more home cooking for Wisconsin angels 5New Silicon Pastures director envisions more home cooking for Wisconsin angels 6CIO Leadership Series: Jane Durment, Marcus Corp. 2CIO Leadership Series: Jane Durment, Marcus Corp. 3CIO Leadership Series: Jane Durment, Marcus Corp. 4
(Date:12/11/2014)... N.C. , Dec. 10, 2014  That blood pressure ... quite a while. Hypertension – the medical term for high ... the early 1800s, and the inflatable cuff that,s used in ... doesn,t, however, mean there,s nothing new about hypertension, its triggers ... long-held beliefs about the condition and the best ways to ...
(Date:12/10/2014)... YORK , Dec. 8, 2014 You,ve been ... banking account but can,t remember your password, site key or ... Who was your first grade teacher? Today, ... the app that will finally put an end ... – 1U TM . 1U leverages a user,s ...
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Wake Forest Baptist ... education building for its School of Medicine. Funding for ... larger capital campaign that will be publicly launched next ... be located in the former 60 series R.J. Reynolds ... Innovation Quarter. Construction will begin immediately with plans to ...
Breaking Biology News(10 mins):Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... world,s population is at risk of infection by the dengue virus, ... therapy to protect people from the virus could finally be a ... paper published today in the Proceedings of the National Academy ... Cancer Research, present a novel approach to developing a dengue therapy ...
... New York, NY and San Diego Calif. Proteins that ... aberrant signaling drives the wild proliferation of cells that gives ... receptor (EGFR), fuels a wide variety of cancersincluding a highly ... block its signaling tend to work only for a short ...
... by the human papilloma virus (HPV) has tripled since the ... This study discovered a new mechanism by which HPV causes ... that blocks the mechanism;, The findings could lead to ... COLUMBUS, Ohio Researchers have discovered a new mechanism ...
Cached Biology News:Research advances therapy to protect against dengue virus 2Research advances therapy to protect against dengue virus 3A hijacking of healthy cellular circuits 2A hijacking of healthy cellular circuits 3Researchers design drug to restore cell suicide in HPV-related head and neck cancer 2
Peptide-affinity Purified Polyclonal Antibody to Purinergic Receptor P2Y12...
Peptide-affinity Purified Polyclonal Antibody to SMAD7 Peptide with sequence SSCPCWLEVIFNSR, from C Terminus of the protein sequence according to NP_005895....
Mouse monoclonal [b/e4 (9.20)] to Cytochrome P450 2B1 + 2B2 ( Abpromise for all tested applications)....
Goat polyclonal to MLH3 ( Abpromise for all tested applications). entrezGeneID: 27030 SwissProtID: Q9UHC1...
Biology Products: