Navigation Links
Electron billiards in nanoscale circuits
Date:10/21/2010

At the heart of the method is a so-called quantum point contact (QPC). This is a narrow conductive channel in a semiconductor circuit. The scientists created a 70-nanometer narrow channel, about as wide as the wavelength of electrons in the semiconductor. The key is that only one electron at a time will fit through the channel, making possible extremely high-precision measurements of the electric current. As described in the current publication, this method was applied to photogenerated electrons for the first time ever.

In the experimental set-up it is not the sun, but rather a laser beam that kicks the electrons into their excited state. These electrons are then analyzed using a quantum point contact. In the process, the scientists were able to demonstrate for the first time that photogenerated electrons can flow several micrometers before colliding with crystalline atoms. They also established that the geometric form of a circuit has a strong influence on electron paths. Electrons can even "run around corners" when they rebound from circuit boundaries, not unlike billiard balls.

The insights and analytic opportunities made possible by this novel technique are relevant to a whole range of applications. These include, most notably, the further development of electronic components such as photodetectors, high electron mobility transistors (HEMT), and components that utilize the magnetic spin of electrons to process information.


'/>"/>

Contact: Dr. Andreas Battenberg
battenberg@zv.tum.de
49-892-891-0510
Technische Universitaet Muenchen
Source:Eurekalert

Page: 1

Related biology technology :

1. New nano techniques integrate electron gas-producing oxides with silicon
2. Breakthrough e-display means electronics with high speed, high readability and low power usage
3. Single electron reader opens path for quantum computing
4. Novel electronic biosensing technology could facilitate new era of personalized medicine
5. Researchers stretch a lackluster material into a possible electronics revolution
6. Study of electron orbits in multilayer graphene finds unexpected energy gaps
7. Graphene exhibits bizarre new behavior well suited to electronic devices
8. Nanowick at heart of new system to cool power electronics
9. Polymer synthesis could aid future electronics
10. European cooperation ensures global leadership in microelectronics
11. Small wires make big connections for microelectronics
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/22/2014)... Dec. 22, 2014  ( www.competitivehealth.com ) — Competitive ... medical bill review and advocacy service, has signed an ... WellCard Savings discount health services marketplace. 63% ... more than they expected to pay. As part of ... costs, WellCard Savings is pleased to offer medical bill ...
(Date:12/22/2014)... 22, 2014 Fertility Associates of Memphis ... Bank USA , a network of more than 20 ... partnership, patients have fast access to a national pool ... IVF . Fertility Associates of Memphis is the only ... treatment option. , Dr. William Kutteh , director ...
(Date:12/19/2014)... BioPlus Specialty Pharmacy (BioPlus), one ... of Nick Maroulis, Pharm.D. to the newly created position ... In this position, Dr. Maroulis will continue to manage ... of our multi-site pharmacies as the company expands. Dr. ... that time he has served in many different capacities ...
(Date:12/19/2014)... Dec. 19, 2014 Bina Technologies, Inc. (Bina, ... that they have been acquired by Roche (SIX: RO, ... privately held company that provides a big data platform ... (NGS) data for the academic and translational research markets. ... and will continue to focus on development of their ...
Breaking Biology Technology:WellCard Savings Announces CoPatient Medical Bill Review Service for Members 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3BioPlus Specialty Pharmacy Promotes Dr. Nick Maroulis to Vice President of Specialty Pharmacy Services 2Bina Technologies is acquired by Roche. 2Bina Technologies is acquired by Roche. 3
... (WNS) is a poorly understood condition that, in the two ... northeastern states and killed as many as half a million ... measure that may help save the affected bats: providing localized ... no idea why it,s spreading so rapidly," says Justin Boyles, ...
... 5 Cardium Therapeutics (NYSE Alternext US: CXM) today announced ... form of debt with accompanying warrants to purchase shares of ... and sole placement agent for the transaction. The material ... in the Company,s Current Report on Form 8-K to be ...
... March 6 S*BIO Pte Ltd today announced ... Emerging BioScience Company of Singapore Award. Dr. Stephen ... the award on behalf of the company, from ... and Industry.The Annual BioSpectrum awards recognize outstanding contributions ...
Cached Biology Technology:Ecologists propose first prevention for white-nose syndrome death in bats 2Ecologists propose first prevention for white-nose syndrome death in bats 3Cardium Completes $3.5 Million Credit Facility 2Cardium Completes $3.5 Million Credit Facility 3Cardium Completes $3.5 Million Credit Facility 4S*BIO Receives BioSpectrum Editor's Choice, Emerging BioScience Company of Singapore Award 2S*BIO Receives BioSpectrum Editor's Choice, Emerging BioScience Company of Singapore Award 3
(Date:12/22/2014)...  NXT-ID, Inc. (NASDAQ: NXTD and ... focused on the growing mobile commerce market, announces it ... Apollo Robbins for the 2015 International CES debut ... Apollo Robbins will be at the NXT-ID ... some of his famous theft techniques to visiting media ...
(Date:12/19/2014)... Dec. 18, 2014  23andMe, Inc., the leading personal ... that pinpoints fine-scale differences in genetic ancestry of individuals ... Since immigrants first arrived more than four ... has served as a meeting place for peoples ... and the ongoing mixing of peoples with African, European, ...
(Date:12/17/2014)... RALEIGH, N.C. , Dec. 16, 2014 ... has licensed its PerformTek biometric technology to industry leaders ... their highly accurate, clinically validated, biometric wearable products. These ... January 6-9 in Las Vegas . ... the technology is accurate, flexible and robust – with ...
Breaking Biology News(10 mins):NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 423andMe Study Sketches Genetic Portrait of the United States 223andMe Study Sketches Genetic Portrait of the United States 323andMe Study Sketches Genetic Portrait of the United States 4Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2
... post-weaning multi-systemic wasting syndrome (PMWS) on British Pig Industry published, ... PMWS, Farm-level intervention could save farmers up to 11,500 per ... pig virus, present on 99 per cent of pig farms has ... a whole, costing British farmers as much as 84 per pig ...
... could be improved by a discovery about how chickens regulate ... make-up can affect the signals sent from its stomach to ... enough to eat. Poultry farmers often have to restrict ... of fullness and can overeat, affecting their ability to reproduce. ...
... online publication version of Nature today presents two manuscripts ... and domestication of wheat. These achievements are the results ... and Developmental Biology (IGDB), Chinese Academy of Sciences, Chinese ... projects sequenced and analyzed two ancestral wheat genomes of ...
Cached Biology News:Pig wasting syndrome costing farmers millions 2Appetite genes are key to better diets for poultry, study shows 2The latest genomic studies of wheat sheds new light on crop adaptation and domestication 2The latest genomic studies of wheat sheds new light on crop adaptation and domestication 3