Navigation Links
Sheet of carbon atoms acts like a billiard table, physicists find
Date:9/17/2007

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:1/22/2015)... January 22, 2015 Controlled Substance Compliance ... which helps companies check the legal requirements around using ... to China. , As their international operations expand ... adopting software solutions built as a result of the ...
(Date:1/22/2015)... 22, 2015 Diagenode, Inc., a ... the Bioruptor® and complete solutions for epigenetics research, ... immunoprecipitation, alleviating the need for manual processing. The ... for ChIP of histones or transcription factors and ...
(Date:1/22/2015)... SAN DIEGO , Jan. 22, 2015   ... company, and Sequenom, Inc. (NASDAQ: SQNM ... a development agreement for next generation noninvasive prenatal ... Cypher,s genome interpretation technology, called Mantis™, to advance ...
(Date:1/22/2015)... , Jan. 22, 2015   GenoSpace , a precision medicine ... to enable the broad use of genomic, imaging and other ... appointment of Michelle Munson , CEO of Aspera, an ... Logo - http://photos.prnewswire.com/prnh/20150122/170713 "We ...
Breaking Biology Technology:Global Compliance Service for Controlled Substances to Expand to China 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2Cypher Genomics and Sequenom Announce Development Agreement 2Cypher Genomics and Sequenom Announce Development Agreement 3Cypher Genomics and Sequenom Announce Development Agreement 4GenoSpace Expands Board with Appointment of Michelle Munson 2
... is pleased to announce that it has been selected by ... United Kingdom in the prestigious 2011 awards programme. Trimega beat ... Country Representatives and will now compete for a coveted Ruban ... Trimega,s pioneering use of dual testing of hair to determine ...
... College Park, Md. (May 6, 2011) A bold new ... silicon and may boost their efficiency is the ... and the Institute of Physics, photovoltaic group at the Academy ... for low-cost, high-yield industrial production of solar panels from abundant ...
... America, Inc . (OTC BB: CBAI, CBAID) announced today that the ... its shareholders voting in a recent proxy vote,  is the opening ... one for one hundred reverse split reduces the number of shares ... "D" will be placed on the ticker symbol for 20 business ...
Cached Biology Technology:Trimega Laboratories Honoured to Represent UK at the European Business Awards 2Trimega Laboratories Honoured to Represent UK at the European Business Awards 3'Swiss cheese' design enables thin film silicon solar cells with potential for higher efficiencies 2
(Date:12/19/2014)... 2014   LaunchKey , the first decentralized mobile authentication ... of Things era, today announced the close of $3 ... led by Metamorphic Ventures with participation from ENIAC Ventures, ... others.  LaunchKey has raised $4 million to date, and ...
(Date:12/17/2014)... Dec. 16, 2014 Research and Markets ( ... "Global Chemical Sensor Market 2015-2019" report to their ... One major trend upcoming in this market is ... Chemical sensors help in recording of patient data for ...
(Date:12/11/2014)... Dec. 10, 2014  That blood pressure plays a role in ... – the medical term for high blood pressure – was ... the inflatable cuff that,s used in measuring blood pressure was ... nothing new about hypertension, its triggers and its effects. In ...
Breaking Biology News(10 mins):LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 2LaunchKey Raises $3 Million in Additional Funding Led by Metamorphic Ventures 3Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Research 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 4
... German . , It is currently estimated that ... those reserves where extraction is cost-effective will only flow for ... Institute for Coal Research and at the Max Planck Institute ... worthwhile to tap into previously unused resources. They have developed ...
... concept of altruism has long been debated in philosophical ... debate. From the perspective of natural selection, altruism ... likelihood of a relative,s survival and reproduction increases the ... Social behavior, kin recognition, and altruism are well known ...
... with colleagues in Sweden and abroad, have identified an entirely ... inhibits formation of new blood vessels. Inhibiting the formation of ... cancer treatment. The study is published in the November issue ... the formation of new blood vessels, is strictly regulated by ...
Cached Biology News:Energy-saving powder 2Energy-saving powder 3Can a plant be altruistic? 2New mechanism explains how the body prevents formation of blood vessels 2
Immunogen: Synthetic peptide: S(399) P W S E L E F Q F P D D K D P V W E F(418) Storage: -20 C, Avoid Freeze/Thaw Cycles...
Human ABCG2 MAb (Clone 5D3)...
Borosilicate Glass. Certified for use with the Beacon 2000 Systems, 1,000 tubes/case...
Whole blood is collected from healthy guinea pigs of either sex from US source which are free of visible diseases at time of blood collection. Hemolytic titer: CH50 = 435 units...
Biology Products: