Navigation Links
Sheet of carbon atoms acts like a billiard table, physicists find
Date:9/22/2007

RIVERSIDE, Calif. A game of billiards may never get smaller than this.

Physicists at UC Riverside have demonstrated that graphene a one-atom thick sheet of carbon atoms arranged in hexagonal rings can act as an atomic-scale billiard table, with electric charges acting as billiard balls.

The finding underscores graphenes potential for serving as an excellent electronic material, such as silicon, that can be used to develop new kinds of transistors based on quantum physics. Because they encounter no obstacles, the electrons in graphene roam freely across the sheet of carbon, conducting electric charge with extremely low resistance.

Study results appear in todays issue of Science.

The research team, led by Chun Ning (Jeanie) Lau, found that the electrons in graphene are reflected back by the only obstacle they meet: graphenes boundaries.

These electrons meet no other obstacles and behave like quantum billiard balls, said Lau, an assistant professor who joined UCRs Department of Physics and Astronomy in 2004. They display properties that resemble both particles and waves.

Lau observed that when the electrons are reflected from one of the boundaries of graphene, the original and reflected components of the electron can interfere with each other, the way outgoing ripples in a pond might interfere with ripples reflected back from the banks.

Her lab detected the electronic interference by measuring graphenes electrical conductivity at extremely low (0.26 Kelvin) temperatures. She explained that at such low temperatures the quantum properties of electrons can be studied more easily.

We found that the electrons in graphene can display wave-like properties, which could lead to interesting applications such as ballistic transistors, which is a new type of
'/>"/>

Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Printable CELLocate Log Sheets for Easily Locating Adhererent Cells
2. Imaging and Analysis of DIGE Product Information Sheet, Rev B
3. QBT Fatty Acid Uptake Assay Kit datasheet
4. FLIPR Calcium Assay Kit Datasheet
5. FLIPR Calcium 3 Assay Kit Datasheet
6. Capital-raising term sheets for angels and venture capitalists
7. Musicnotes strikes deal to distribute Sony/ATV sheet music
8. Balance-sheet success leads to hunt for market dominance at Merge
9. The Analysis of Polycyclic Aromatic Hydrocarbons (PAHs) by LC/MS/MS Using an Atmospheric Pressure Photoionization Source
10. Visions: Carbone bullish on Wisconsin venture capital
11. Engineers chart semiconductors on the scale of atoms
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... An interdisciplinary team of researchers led by Northeastern ... constructing precise inter-nanotube junctions and a variety of ... is facile and easily scalable, which will allow ... nanotube networks for use in applications ranging from ... everything from cars to sports equipment. , Their ...
(Date:9/15/2014)... , Sept. 15, 2014 The chemistry, taste, ... climate, says a new article published by the nonprofit American ... PhD, on climate change and its effects on the phytochemical ... an extensive study conducted by Dr. Ahmed in the ... and has implications for the future of medicinal ...
(Date:9/15/2014)... , Sept. 15, 2014  The second annual ... celebrated October 12-18. A joint initiative of the ... member companies , IPAW is designed to: ... , Recognize the contributions of plasma donors in saving ... plasma protein therapies and rare diseases ...
(Date:9/13/2014)... September 13, 2014 Boehringer Laboratories Inc., ... is proud to announce the successful broadcast of a ... surgeons Leonardo Claros, MD, FACS, FAMBS, and Maher El ... Gastrectomy Calibration System. , This sleeve gastrectomy surgery ... of more than four hundred surgeons from around the ...
Breaking Biology Technology:Northeastern University Researchers Develop Novel Method for Working with Nanotubes 2Tea Taste and Quality Affected by Climate Change 2Tea Taste and Quality Affected by Climate Change 3Tea Taste and Quality Affected by Climate Change 4International Plasma Awareness Week To Celebrate Donors And Spotlight Rare Diseases 2International Plasma Awareness Week To Celebrate Donors And Spotlight Rare Diseases 3Boehringer Laboratories, Inc. Announces Live Surgery Using Innovative System to Calibrate Sleeve Gastrectomy 2
... Dec. 20 Northwest,Biotherapeutics, Inc. (OTC Bulletin ... ("NWBT") announced today that Lonza Group AG ... NWBT,s DCVax(R)-Brain,product and other NWBT DCVax(R) products ... DCVax(R) cancer vaccine products infringed,certain gene expression ...
... teens and adults, HIGHLANDS RANCH, Colo., Dec. 19 ... its treatment services to,include a detox program. The new ... adults, and the hospital has added several new physicians ... abuse and,mental illness)., Teen suicide rates nationally are ...
... PALO ALTO, Calif., Dec. 19 Alexza,Pharmaceuticals, Inc. (Nasdaq: ... V. Barron, MD, FACC to its Board of Directors. ... Medical Officer at Genentech,where he leads the Development organization, ... Dr. Barron joined Genentech in 1996 as a clinical ...
Cached Biology Technology:Lonza Withdraws Majority of Claims in Patent Lawsuit Against Northwest Biotherapeutics 2Lonza Withdraws Majority of Claims in Patent Lawsuit Against Northwest Biotherapeutics 3Lonza Withdraws Majority of Claims in Patent Lawsuit Against Northwest Biotherapeutics 4Highlands Behavioral Health Hospital Unveils New Substance Abuse Detox Program 2Alexza Elects Dr. Hal V. Barron to Its Board of Directors 2Alexza Elects Dr. Hal V. Barron to Its Board of Directors 3
(Date:9/15/2014)... an unprecedented evolution experiment scientists from GEOMAR Helmholtz ... Institute of Sea Fisheries have demonstrated for the ... algae of the world,s oceans, Emiliania huxleyi ... rising water temperatures. In their study, the researchers ... evolutionary adaptations to these two aspects of climate ...
(Date:9/15/2014)... Ebola virus outbreak in West Africa, which has claimed ... a deeper understanding of the molecular biology of the ... vaccines or antiviral drugs to treat or prevent Ebola ... Virginia (UVA), USA under the leadership of Dr ... structural biologist has obtained the crystal structure of ...
(Date:9/15/2014)... September 15, 2014 Schizophrenia is generally considered to ... many risk factors, both genetic and environmental, with other ... The normal path for brain development is determined by ... and a wide range of environmental factors. , However, ... populations are required in order to map the disturbances ...
Breaking Biology News(10 mins):Small algae with great potential 2Small algae with great potential 3Protein secrets of Ebola virus 2Brain Development in Schizophrenia Strays from the Normal Path 2
... AUSTIN, Texas , April 17, 2013 Vermillion, ... company focused on gynecologic cancers and women,s health, announced the ... with the U.S. Army Medical Research and Materiel Command ... titled, "Cost Reduction Using OVA1 in a Treatment Algorithm ...
... Recent developments in postharvest disease control will be highlighted at ... sponsored by the University of California, Riverside Extension ... run from 8 a.m. to 5 p.m. Tuesday, April 23, and ... Santa Barbara . This year,s conference will include a large ...
... Committee for the Asian hornet, the Vespa velutina ... Community (region), the Charter Provincial Councils, the Beekeeping sector ... aimed at controlling the Vespa velutina populations ... an invasive species from France that preys on bees ...
Cached Biology News:U.S. Army and Vermillion to Assess Health and Economic Benefits of OVA1 as a Standard of Care 2U.S. Army and Vermillion to Assess Health and Economic Benefits of OVA1 as a Standard of Care 3U.S. Army and Vermillion to Assess Health and Economic Benefits of OVA1 as a Standard of Care 4Conference to highlight latest in postharvest pest control 2
... microPET 220 utilizes utilizies CTI ... leading to superior resolution, sensitivty, and ... the user the flexibility to image ... iamge quality., microPET is a dedicated ...
... been developed to significantly increase the shelf ... Stability is increased at room temperature storage ... This product is subjected to 0.2 micron ... This formulation insures consistently high levels ...
384 Well PCR Plate Carrier for Thermo-Sealer...
... Bead Separation is a powerful tool for ... Typical applications are DNA/RNA or protein purification ... has been fully automated on the Genesis ... Te-MagS. ,In combination with the RoMa ...
Biology Products: