Navigation Links
Graphene earns its stripes
Date:11/29/2011

Researchers from the London Centre for Nanotechnology (LCN) have discovered electronic stripes, called 'charge density waves', on the surface of the graphene sheets that make up a graphitic superconductor. This is the first time these stripes have been seen on graphene, and the finding is likely to have profound implications for the exploitation of this recently discovered material, which scientists believe will play a key role in the future of nanotechnology. The discovery is reported in Nature Communications, 29th November.

Graphene is a material made up of a single sheet of carbon atoms just one atom thick, and is found in the marks made by a graphite pencil. Graphene has remarkable physical properties and therefore has great technological potential, for example, in transparent electrodes for flat screen TVs, in fast energy-efficient transistors, and in ultra-strong composite materials. Scientists are now devoting huge efforts to understand and control the properties of this material.

The LCN team donated extra electrons to a graphene surface by sliding calcium metal atoms underneath it. One would normally expect these additional electrons to spread out evenly on the graphene surface, just as oil spreads out on water. But by using an instrument known as a scanning tunneling microscope, which can image individual atoms, the researchers have found that the extra electrons arrange themselves spontaneously into nanometer-scale stripes. This unexpected behavior demonstrates that the electrons can have a life of their own which is not connected directly to the underlying atoms. The results inspire many new directions for both science and technology. For example, they suggest a new method for manipulating and encoding information, where binary zeros and ones correspond to stripes running from north to south and running from east to west respectively.

This work is part of an ongoing multi-disciplinary research effort into graphe
'/>"/>

Contact: Joanna Rooke
j.rooke@ee.ucl.ac.uk
44-207-679-9950
University College London
Source:Eurekalert  

0

GOOD

Page: 1 2

Related biology technology :

1. Imperfections may improve graphene sensors
2. Graphene foam detects explosives, emissions better than todays gas sensors
3. UCSB professor receives award for graphene electronics research
4. Researching graphene nanoelectronics for a post-silicon world
5. Research: Graphene grows better on certain copper crystals
6. Frustration inspires new form of graphene
7. Graphenes Big Mac creates next generation of chips
8. How graphenes electrical properties can be tuned
9. Controlling silicon evaporation allows scientists to boost graphene quality
10. Innovation is step toward digital graphene transistors
11. A whole new light on graphene metamaterials
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Graphene earns its stripes
(Date:5/23/2013)... , May 23, 2013  Saddleback Memorial Medical Center ... became the first hospital on the West Coast to ... new surgical option provides women with a state-of-the-art, minimally ... Marc Winter , M.D., a highly regarded ... and medical director of minimally invasive surgery at Saddleback ...
(Date:5/23/2013)... EXTON, Pa. , May 23, 2013 /PRNewswire/ ... leading research and advisory firms for specialized biopharmaceutical ... gastroenterologists, hepatologists, and infectious disease specialists reported that ... warehousing patients (e.g., intentionally delaying treatment) in anticipation ... physicians than six months ago, when only 6 ...
(Date:5/23/2013)... -- Z Trim Holdings, Inc. (OTC Markets: ZTHO), a ... industries, announced that Chef Erin Ryan ... National Restaurant Association ("NRA") NRA Show, which was held ... Chefs Association.  Chef Ryan spoke on the subject of ... the Ugly," joining four other prestigious panelists including:  Kit ...
(Date:5/23/2013)... The New Jersey chapter of the largest organization ... (BDPA), is hosting its 10th annual Families in Technology ... will encourage students and their parents to explore the ... many of the industries’ finest teachers. Held from 9 ... of Technology, the event will include workshops, instruction and ...
Breaking Biology Technology:Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 2Saddleback Memorial Surgeon First on the West Coast to Perform Single-Site Robotic Hysterectomy 3The Majority of Physicians that Treat Hepatitis C Virus (HCV) Have Begun "Warehousing" and Preparing Their HCV Patients for the Next Generation of HCV Treatments 2The Majority of Physicians that Treat Hepatitis C Virus (HCV) Have Begun "Warehousing" and Preparing Their HCV Patients for the Next Generation of HCV Treatments 3Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 2Z Trim's Chef Erin Ryan sits on Expert Panel at NRA Show 3Black Data Processing Associates (BDPA) New Jersey Hosts 10th Annual Families in Technology Day June 8, 2013 2
... project management isnt always so common , ,Despite ... are still late, over budget and without the results they ... project is over we rationalize that there wasn't enough time ... team were ridiculous. But when you research and analyze the ...
... Standard Networks announced Tuesday its MOVEit family of ... of capabilities to help guarantee server file delivery. The ... confirmation. , ,MOVEit DMZ servers and MOVEit clients now ... a file is successfully delivered. Files that fail at ...
... College of Engineering, Dean Paul Peercy and his faculty ... includes what it takes to be competitive in todays ... System and the Wisconsin Technical College System, a joint ... with four-year baccalaureate degrees and in what disciplines ...
Cached Biology Technology:Part 3 Project performance Get on the path to continuous improvement 2Part 3 Project performance Get on the path to continuous improvement 3Wisconsin must produce more science-savvy students to remain competitive 2Wisconsin must produce more science-savvy students to remain competitive 3
(Date:5/23/2013)... year, carrying more than 284 million tons of cargo, transit ... in toll fees for the Panama Canal Authority. Each time ... water are used from Gatun Lake, which is also a ... the isthmus. , However, the advent of very large ... ships at sea, has demanded change. The Panama Canal is ...
(Date:5/23/2013)... DNA around nucleosomes in the cell nucleus makes ... Ludwig-Maximilians-Universitaet (LMU) in Munich now describes a mechanism ... from nucleosomes for transcription. , In higher organisms ... nucleus, wrapped around disk-shaped particles called nucleosomes, each ... proteins and accommodating two loops of DNA. Packed ...
(Date:5/23/2013)... A new report from the Institute of Medicine says ... at least 60 minutes of vigorous or moderate intensity ... half of American youth meet current evidence-based guidelines of ... physical activity daily, according to the report, which was ... for nearly half of their waking hours, the committee ...
Breaking Biology News(10 mins):Reforestation study shows trade-offs between water, carbon and timber 2Reforestation study shows trade-offs between water, carbon and timber 3Biochemistry: Unspooling DNA from nucleosomal disks 2Schools should provide students with daily physical activity, IOM recommends 2
... Calif. The University of California, Riverside has signed ... , a South African company, to market ,GEM, an ... According to the agreement signed last month, Westfalia will ... world. Currently, in the United States, the Californiabased ...
... "Metabolism is Not Boring!" asserts the introduction to a ... 3 December 2010). On the contrary, the ways in ... the building blocks of macromolecules are crucial for life. ... the single-celled to multicellular organisms. This gives special importance ...
... clinical trials prove successful, a new discovery published in ... represent a major scientific leap toward human tissue regeneration ... scientists provide evidence to support a major paradigm shift ... added to a graft before implantation are the building ...
Cached Biology News:UC Riverside licenses leading South African company to market 'GEM' avocados 2UC Riverside licenses leading South African company to market 'GEM' avocados 3Yale scientists discover new method for engineering human tissue regeneration 2
Griess Reagent component for determination of nitrite in aqueous solutions....
... template DNA, primers, salts or other unwanted ... proved critical for both standard and capillary ... with dye terminator cycle sequencing chemistries such ... uniformity of the magnetic paeticles guarantees consistent ...
The Zymo-Spin PI Fast-Spin column features durable polypropylene construction and is the same column featured in the His-Spin Protein Miniprep. Capacity is 800 l....
... Freezing Point Osmometer for 10 L ... applications, including pediatric, neonatal, geriatric, general ... Automatic Calibration with 2 or 3 ... keypad and software for statistical analysis ...
Biology Products: